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  1. Hi, I have a preset with snapshots using 1 amp (the cartographer which is great). Obviously because of using snapshots I have different parameters on the amp per snapshots. When I switch from one snapshot to another there is a loud pop noise. Is there a way to avoid that noise. I tried to use an eq pedal to regulate volume and keep the volume on the amp channel equal but this did not solve the issue. I also tried to put the amp in another path but this did not help neither.
  2. Hello there. I'm a UX2 user like 5 years, which i've been gifted by my uncle in USA. Once, i had not any problems, while i was using Windows 7 i suppose. Then in time, some problems started to occur. Biggest one was -and still is- that, all of a sudden sound is gone and i don't have any option but to restart my computer. Either playing a game or watching a video, listening to music, all of a sudden, bam! Sound is gone and nothing helps but a restart! And it also randomly happens again after a restart as well. I started to have this problem in Windows 7, had in 8 and now in 10 it still happens. I did not change any computer part since then (cpu, mobo etc.) Besides, i've not got a second problem, which freaks me out often. As before, during any playback, a loud "white noise-ish" distort occurs for a second or two, then playback continues. This happens quite randomly, sometimes twice in 10 seconds, sometimes once, sometimes never. I've tried every driver i can, the oldest and the newest ones, tried changing the buffer sizes, buffer lengths, depths etc. What's more interesting is, this problems do not happen for two or three weeks, and the week after, it's an absolute nightmare! It's like, as if it has something to do with the days of the months! I do not overclock, my system is all stable and not overheated during even the hardest gaming sessions. I'm quite fed up with this problem. One day, i'll break the hell out of this device and post the images as an ultimate solution for the people who have such problems as well.. Please, i beg you; please help me!
  3. Hello! I've had a Line 6 Toneport UX2 for a couple of years now. Recently I got a new desktop PC running windows 10. When i connect my toneport all I can hear coming from the outputs and the phones output is a loud hissing noise. Drivers are all up to date, line 6 monkey shows me all green ticks, asio drivers are all ok. the input vu-meter is always at maximum even though nothing is connected to it. no input signal, no output sound (except for the loud hiss.) Running it in a usb 2.0 on the motherboard (so no usb dongle or something like that). Tried it with all ports, a couple of different usb cables. I've also tried seeing if my PC's output voltage was the problem but everything is ok, no overclocking done. I'm running out of ideas. Could anyone help me with this?
  4. Hi, I have a PODxt Pro, I recently started getting terrible EMI Interference noise (its not the 60 hz hum) on all outputs Digital. and all analog outs ie Balanced, unbalanced, headphones....... Its not guitars, cables, output devices, or external surrounding electrical devices........... when I was trouble shooting noise source ie... ground loops, firmware, surrounding electrical devices,.... all of which I think I have ruled out. I have one question, I never noticed that the internal POD power transformed hummed, even though that is not what I hear from outputs. Can anyone tell me if this is normal with the POD xt Pro power transformer to hear the 60 hz hum when device is powered on with no inputs or outputs connected? Thank for all replies in advance, Jeff
  5. I love using the helix with my real tube amp. I can use the real amp-sounds and just effects and/or the preamp modulation from helix and a real power amp kicking a real cab. Now, I would reaaaally love to have the helix connected to my DAW at the same time so I could also record and reamp the signals but plugging the USB between my helix and my mac causes all the speakers go justinbieberbangingcyborgbritneyspearsbrmmmmmmmm : C I haven't had this kind of problem with any other gear in my home studio. Any ideas? I could just use the analogue connections back and forth between my mixer but would love to skip all the A/D/A-conversions...
  6. Hello Line 6 community, I am using an HX Stomp as part of a bigger pedalboard recently and have been able to play without issue at home. However, I did my first outdoor gig with it and experienced what sounded like a ground loop noise through the PA system when I was hooked up to the PA and pedal board. I bypassed the helix, sound was gone. I used only helix, sound was gone. Both power supplies for pedals and helix were on the same power strip. I believe it is ground because the noise is consistent regardless of the output of the HX (I turned the volume all the way down) Anyone have any clues? On a side note, I always get a hum when I use analog bypass. I am wondering if there may be something specifically faulty with my unit. Thanks in advance
  7. Hi guys, does anybody have problems with high pitched background noise since the latest update ?
  8. Hi, I am a new Helix user. Love the power. I have researched this topic, but not found any resolution in the forums or online. So, please forgive me if this was solved. I am plugging the XLR out of the Helix into the PA Mixer. No inputs on the Helix. New Patch with nothing in it. The main volume is at zero. The helix has an steady white noise hiss that is high enough to make the unit unusable. This happens on all outs. The XLR outs are set to MIC. If I unplug the XLR cable from the helix the noise goes away. If I plug a microphone into that cable directly into the mixer, there is no noise at all. The ground switch doesnt make a difference. Phantom Power on the mixer is OFF. I want to be clear, There is only one cable plugged into the Helix connecting from the Right XLR out to a MIC channel on the mixer. There is no signal. Just alot of HISS. Any ideas? Thanks!
  9. Hi, I've just got a new Spider V 20 MkII as an upgrade to my Spider III. I was surprised and disappointed to hear the loud buzzing and high-pitched whine coming from the amp on all settings except clean. My Spider III is completely silent on all modes, including INSANE. The Spider V is pretty much unusable because of the noise emitted when there is no significant input from a guitar. I have tried changing guitars, changing instrument cables, using different power sockets, moving to different rooms, but nothing seems to improve it. I can remove a lot of the noise using the Spider Remote noise gate and adjusting gains, but I don't see why that should be necessary with out of the box, factory preset tones. Is there something wrong with my Spider V amp or is this just something this amp does? Any help in getting rid of this unwanted buzz and whine is appreciated. Thanks
  10. WARNING: Utilizing FX Loop, Send, and Return blocks within the same Helix/HX preset has the potential to cause a feedback loop based on the routing and their position in the signal flow. The volume level and severity of this is feedback loop is dependent upon what is contained within the FX Loops. We strongly encourage Helix/HX users to use extra caution and awareness when using these blocks in their presets. Specifically avoid placing duplicate send blocks AFTER their corresponding Return in the signal flow. This applies to both FX loop blocks which contain both sends and returns within one block as well as individual send and return blocks. For example, if your preset contains an FX Loop 1 block (FX Loop L on HX Stomp), which utilizes both Send 1 and Return 1, DO NOT place a Send 1 block AFTER this FX Loop. The same would apply to using individual send and return blocks. For example, if you have a Send 1 block and a Return 1 block in your preset, DO NOT place a duplicate Send 1 block AFTER the Return 1 block.
  11. Hey! So I've been dealing with this issue for seriously a year or two, but it's gotten insane the past couple months where it's every single time I start up my computer. Needed to finally make a topic since it's never been described exactly like this for me. Here is a video link to see what's happening: (If there's a more preferred way to share this just let me know please) Dropbox Link for UX2 Hiss Video I will need to unplug and replug my interface in for an unknown amount of times before the issue resolves itself. Sometimes it breaks the driver and I reinstall the UX2 drivers to get rid of the blinking red lights and it works again for the time I have my computer booted up. The noises vary but are similar. Some high pitched, some with a rhythmic pulse like it could be the power source, I have a battery backup surge protector everything runs through. Others sound like a High-Pass is on it, and some are bassy. Never know what you're going to turn the monitors on for and hear. I've tried switching the ports I've plugged into, taking every other plug of my UX2 out and replugged them in with varying orders, turning knobs while having it plugged in and out, etc. I have Mackey MR5s if that gives any help somehow. And I have attached an HTML and TXT file for my CPU info from CPU-Z KYLE-NZXT-DESKT.html KYLE-NZXT-DESKT.txt
  12. Hi Guys. Ive had a UX1 since pod farm 1.0 maybe 13 years ago at a guess. I recently tried to start using plugins in reaper with IRs and also standalone Amp sims like Cali Suite by Neural DSP using my UX1 as the interface. But I've run into some crazy electrical noise I've never had before on both of these am sims with IRs loaders builtnit. I normal using podfarm for scratch tracks. I've tried the usual changing cables etc. But I cant figure out where its coming from so I am wondering if is possibly the UX1 itself. Also Is it possible for these super old interfaces to run IR based sounds? Just wondering as if not its about time I bought an upgrade. Asside from my PC components (PC is a pc specialist build) im not sure what else it could be so I am hoping y'all have some ideas? I can supply samples if needed. Much appreciated!
  13. HELLO LINE 6 BUDDIES! I'm two-track recording an acoustic guitar with my POD HD500X as the audio interface. I have a RODE NT1A condenser mic plugged into a mixer with phantom power. This mixer is then connected to the POD's 'Guitar In' input via guitar lead, and there is also an acoustic guitar connected to the 'AUX' input for a direct signal. This is all running through Logic Pro X on my Macbook Pro (Early 2015) with 16GB RAM. I have used this setup before and it has all worked fine, except today I am hearing intermittent static coming from both inputs at seemingly random intervals. It sounds like a short burst of a bitcrusher-like sound, and then goes back to normal after less than a second. It can't be any problem with the mic/mixer because I am getting the problem on AUX (direct input) as well as the Guitar In (mic) input. I have tried different USB cables, and have tried different power outlets. I have also tried a different audio interface (that can unfortunately only handle one input) that didn't seem to have the same problem, leading me to think that it also isn't an issue with Logic Pro X... SO... Has this happened to anyone before, and can anyone think of any reason this might be happening? Yeah, I've turned it off and on again ;)
  14. I'm trying to record into my DAW using the USB cable however I'm experiencing pops and clicks in my studio monitors and my headphones with audio playback or live guitar playing.. I've also noticed that the signal seems to double slightly when connected via usb. I've located the issue to the USB port causing the issue. I done this by changing the USB cable with another one to see if there was any noise and there still was. can someone please help as I will have to call technical support otherwise and mybe have to send back my new line6 helix :( and i don't want to do that because all the other audio connections work fine
  15. Hi there, first of all, happy new year to everyone. I'm having big issues with my Helix using it together with my tube amps. I got my Helix a few weeks ago, the plan was for it to replace my big a** FX rack. I wanted to use the Helix for FX only (in four cable method) while getting my base tone from my 3-Channel Tube Amp(s). That plan failed for now, because in the current state it's unusable. When connecting the Helix to my Amps, a giant noise floor gets added. It can be barely heard using the first (clean) channel of my amps, but when using the 3rd (high gain) channel of the amps, the noise is so loud it makes the setup almost unplayable. I have made a few tests in my home just now, with the following basic setup: A fresh, empty preset in Helix, all outputs set to instrument level, and a volume pedal block added before the output of path 1A. No volume control in the Helix, be it in the input of the path, volume pedal block, the output of the path, or the big knob has any influence of the level of the noise. Both stage amps I own show the same behaviour, so it is very unlikely to be a fault in one of the amps. Both amps are custom hand wired amps that I designed and built myself (before you ask, yes, I am qualified for that, and the amps are built to a very high standard, not some kind of botch jobs :) ), so no use asking for the amps' brand. Both amps have been on the road with me, playing reliably for the past years and working flawlessly with my, in terms of noise grounding etc. far more complex, rack system. Or so I thought... Anyway. I am beginning to suspect that my Helix unit is faulty. Before I go through the hassle of returning the unit I wanted to ask if anyone here maybe has had similar experiences running the Helix together with a high gain tube (pre-)amp. I have attached a sample of the noise. I quickly recorded it with my mobile, as I don't have a recording setup at home. In the sample you can hear the change in noise level when I plug the Helix into the amp's input jack. I held the mobile right in front of the speaker cabinet. First you hear some buzzing from the amp with nothing connected, then the click when I plug the guitar cable into the helix, and then I plug the other end of the cable into the amp's frontend. The amp was switched to its high gain channel, master volume set a little lower than stage volume. No guitar was connected to the input of Helix. As you can hear, the increase in noise is really huge. Any help or suggestions are highly appreciated, I'm really frustrated. Thanks, Nils Edit: deleted sound sample to avoid further confusion.
  16. Hi. I have a problem. Maybe someone has the answer. Since i use my PodGo, i have a lot a crakles and noise in my DAW. If i change my buffer size (extra small or extra large) it change nothing. My cpu is right (17% used) I had a PodHD before with the same computer and the same DAW and the problem was not there. So, it seems to come from the Podgo driver. It occurs only within the daw (cubase 10)... Thank you... and the last uptade is done (version 1.12)
  17. So I'm still confused about what is happening with the PGO FX Loops... So I have a looper pedal. Depending on where the FX Loop sits in the chain, I get weird noise artifacts. And that is with the looper 'off'; not looping at all: 1) IN -> VOL -> WAH -> DIST -> AMP -> CAB -> DELAY -> REVERB -> FX LOOP -> OUT = noticeable clipping/distortion in the sound 2) IN -> VOL -> WAH -> FX LOOP -> DIST -> AMP -> CAB -> DELAY -> REVERB -> OUT = very high noise, as if the noise gate had been shut down. 3) IN -> VOL -> WAH -> DIST -> FX LOOP -> AMP -> CAB -> DELAY -> REVERB -> OUT = absolutely ZERO noise, distortion or clipping, works perfectly. Can anyone figure why that would be? I thought that because of #1, there was an issue between PGO and the looper pedal, but since with #3 it works perfectly, it doesn't appear to be an issue between PGO and the pedal. I also don't understand #2, the pedal has virtually no noise, it is really virtually silent: I can have the PGO and amp volume maxed, and I hear zero no noise. But if I move the FX Loop before the distortion pedal, it gets VERY noisy. The amount of noise actually depends on which distortion pedals are used, the two L6 distortion being the worse culprits. But since the Looper pedal makes virtually no noise, I don't understand why the PGO gets super noisy when the FX loop is before the distortion and 100% noiseless when it is after it... I mean, if the noise was 0.1dB and the distortion bumped it to 0.4dB that would be normal or expected. But as is, it's really like the noise of the pedal is 0.001dB, but when you turn on the distortion pedal, it becomes 1dB, which is a totally abnormal and unexpected amount of 'amplified' noise, since there's no noise to begin with...
  18. At my gig Saturday night there was excessive electronic noise only when the loops played back? I thought it might be bad power at the venue? Ideas?
  19. I fired up the POD X3 yesterday and the white noise was just too much. I don't know how to deal with it because I've never done this before. If anyone has encountered or dealt with these symptoms, it would really help me if you could give me some advice. The white noise was very bad, even when I tried to connect the microphone and guitar separately. I was connected to my PC at the time, so I recorded with DAW software and the white noise was brilliantly mainstreamed. (Both the microphone and guitar.) I thought it might be due to the connection to the PC, so I started up the POD X3 with the connection between the POD X3 and the PC disconnected and away from the PC and monitor, and the white noise was terrible even in that state. Incidentally, I recorded with a POD X3 with a guitar and microphone and with DAW software between February and April of this year, and when I checked yesterday, there was no white noise at all in the recordings from that time. If anyone knows what causes these and how to remedy the white noise, it would be really helpful to have some advice. (The white noise is terrible, but the guitars and microphones sound normal. Also, I tried changing the headphones to different ones but no change.) Thank you!
  20. I'm getting some bit of weird noise with high gain amps, where it's humming if I'm not touching any metal part of the guitar, but goes away as soon as I touch the strings or bridge. I'm using headphone out to stereo amp & speakers, and just a guitar in cable... Getting the same with multiple guitars, and what's strange is that it does it even with humbuckers. It's almost like if there was a ground loop... Sure, noise gate does help, but it doesn't feel quite normal that I'm getting that much 'electrical' noise for no apparent reason... Any idea what could be causing it and is anyone getting the same thing?
  21. Alright so a bit of backstory. I got my hx stomp back in March, everything was fine until it started freezing up on me and when it froze I can’t switch patches. This would’ve been bad because my band has tons of different patches needed to play a set. Wasn’t a problem though because line 6 took care of me, I sent it back pre paid shipping, and they sent me a new one about 2 weeks later. Completely free, and since then it’s been great, no issues, it’s basically my amp and everything. Until today. I’ve been troubleshooting for awhile now and it has to be the hx stomp. Basically my cab just has a ton of static right now and noise. It’s so loud I can’t even hear my guitar over it. It’s never been like that. I tested all different cables, running straight into my power amp and checked everything, but every time I plug back into the hx stomp it gives off the noise. So I tried different guitars, cables, and in every type of configuration but still nothing. I tried changing wall outlets to see if that helped but nope. The only thing I haven’t done is update it to 2.8 but I’ve seen many reports of it breaking the helix so I’m waiting on that. Any help to figure this out is appreciated.
  22. Hi, I just recently move to PC from Mac, and when I tried connecting my HX stomp to the PC it created this static noise that I have attached. It doesn't matter where I plug the usb cable, front and back panel or USB hub, the result is the same. This problem doesn't happen when I connected it to my Macbook so I guess that maybe I connected something wrong inside the computer or some electrical problem. If anyone can Identify the source of the problem that would be very appreciated, thank you. HX USB NOISE.mp3
  23. Hi! I've recently bought a Helix Lt and I'm trying to make some settings, but I'm finding something curious in every one I made. I tried with Line6 Badonk amp + cab but when I palm mute I'm hearing a strange noise on the background while the volume is going down and then I added a noise gate, but still hearing that. Then, I tried with Archetype Lead and Revv Gen Red/Purple or even a Mandarin 80 and the noise is still there... The only way I've found to manage the noise is setting up a Hard Gate but it cuts the sound a lot... any idea? I let you here a clip that I recorded to show the problem: SoundCloud - Noise (recorded with Guitar direct to Helix LT, with input noise gate at Threshold -48dB, decay 10ms, Guitar In-Z Auto + Scream 808 with 0 gain, 6.5 tone, 10 level and Archetype Lead stock settings + Cali V30)
  24. Hello all, been struggling with this for quite sometime. Thanks for the help in advance. Setup is simple: Desktop connected via USB to POD. POD connected via 1/4" outs to JBL LSR305 studio monitors. I get an annoying electrical noise that is from my PC (it fluctuates when I move the mouse or start applications/games.) It also occurs regardless of the POD unit being on or off, only depends on the monitors being on and all connections in place back to the PC. When I use the XLR outs to the monitor the signal is clean again, but, using the XLR outs i understand I need to switch my monitor to the +4dbU setting. Unfortunately, this makes the volume very low (about 25% of what the monitors can do at the max.) When keeping them on the -10dbV setting, the volume is better, but clipping starts to happen. I also have a power conditioner from Furman, and have tried plugging everything into different outlets, same outlets, I even changed the Power Supply on my PC. No luck lol. Hopefully someone has another idea. Thanks again! -Dan
  25. Version française. Deutsche Version. A brief explanation of USB audio problems: Most USB audio problems are caused by data transfer interrupts on the USB stream that is feeding audio from the driver to the sound card. If there is a software/hardware interaction on your computer that adversely affects that data transfer, the result can be a white noise burst and/or popping and crackling from the audio device. Interrupts can also cause the device to stop functioning, which will require a system reboot for it to work again, but would not fix the problem long-term. USB interrupts generally do not affect most USB devices such as printers, keyboards, mouse, etc., as these devices use a USB bulk mode of transfer and do not produce noticeable problems if data is interrupted. It should be noted that the complicated interaction of hardware and software on differently configured systems will produce different results, including failure with a small number of computers, regardless of device or manufacturer. The successful use of the USB audio hardware on another computer usually indicates that a problem with the original system needs to be addressed. There is no one-size-fits-all resolution to ensure error-free performance of audio devices on computers, but most USB interrupts can be resolved by one or all of these actions that we have seen help other users: 1. Use the latest Line 6 device drivers. Download them from http://line6.com/software/ or use Line 6 Monkey to update them. Follow the below links on how to uninstall drivers should you need to: Mac OS Systems Windows Systems 2. Optimize your computer system for audio: See our Knowledge Base items below to learn how: Computer System Audio Optimization Windows Vista / 7 / 8 Tweaks and Optimizations Also, here is a good tool to use to update your system drivers: http://www.driverupdate.net/ 3. Test all cables to make sure that they are not defective. Use the shortest cable possible. Ensure that they are properly connected. 4. Remove USB hubs from your system: Line 6 does not support the use of USB hubs for any Line 6 product. USB hubs can also cause white noise or audio interrupts. Please disconnect the hub and plug your USB cable directly into a USB port on the back of your computer if you are using a USB hub. Mac users: Make sure you are connecting directly to your computer and not your keyboard, which acts essentially as a USB hub. 5. Adjust the buffer size, sample rate and bit depth in the Line 6 Audio MIDI Control Panel: PC: Start > control panel> select classic view if you are in category mode > Line 6 Audio and MIDI devices Mac: Apple > System Preferences > Other > Line 6 Audio and MIDI devices The driver console will display a Buffer Size slider that you can adjust towards EXTRA SMALL, MEDIUM, or LARGE. Please first move this slider to MEDIUM or LARGE to see if this helps. Your objective is to have little or no latency while eliminating that white noise. Optionally, adjust the sample rate and bit depth settings to match the project settings in your recording application. For more information on these settings, please see The Line 6 Audio-MIDI Control Panel FAQ. 6. Disable wireless networking devices: On some CPU configurations, actively using wireless networking/connectivity while streaming (recording/playing)computer audio can impact the fidelity of the audio streams (e.g. noise or artifacts are heard in the audio while using wireless connectivity). 7. Change Power Options: Change the Power Options on your computer (PC's only). On Windows XP: To change the Power Schemes, go to Start/Settings/Control Panel/Power Options/. Change power schemes to "Always On". Also change all of the Always On Power Scheme settings to "never". On Windows 7: - Go to the computer's Control Panel - 'View By' in top right corner should be changed to large or small icons. - Select Power Options below - On the left side of the screen, select 'Create a Power Plan' - Select the 'High Performance' plan and hit 'Next' - On the next page just hit 'Create' - Next to your newly created Power Plan, click on Change Plan settings - Click on 'Change Advanced Power Settings' - In this new window, select your power plan, and go through the settings below it individually to manage your computer for best performance. - Under Hard Disk, set turn off hard disk after 'never.' - Under USB Settings, set USB selective suspend setting to 'Disabled.' - After making all these changes, click on 'Apply' and 'OK.' - Reboot the computer and test the performance of your USB audio. On Windows 8: - Press the Windows Key on you keyboard to access the Start Windows screen. - Right Click an empty space and select 'All Apps' from the bottom right hand corner. - Scroll over to the far right of the App screen and under Windows System, select 'Control Panel' - 'View By' in top right corner should be changed to large or small icons. - Select Power Options below - On the left side of the screen, select 'Create a Power Plan' - Select the 'High Performance' plan and hit 'Next' - On the next page just hit 'Create' - Next to your newly created Power Plan, click on Change Plan settings - Click on 'Change Advanced Power Settings' - In this new window, select your power plan, and go through the settings below it individually to manage your computer for best performance. - Under Hard Disk, set turn off hard disk after 'never.' - Under USB Settings, set USB selective suspend setting to 'Disabled.' - After making all these changes, click on 'Apply' and 'OK.' - Reboot the computer and test the performance of your USB audio. 8. Set your Line 6 device as the main sound card on your system: See these Knowledge Base items to learn how: Assigning your Line 6 Device as a Sound Card on your Windows XP Computer Assigning your Line 6 Device as a Sound Card on your Windows Vista / 7 / 8 Computer Assigning your Line 6 Device as a Sound Card on your Mac Computer 9. Purchase a PCI based USB card (desktops) or PCMCIA USB card (laptops): These cards often solve the problem of white noise, communication issues and other problems because the USB implementation on these cards overrides the many times less robust USB bus built into your computer. For more information on PCI Cards please visit PCI CARD For more optimization tips, see Computer System Audio Optimization knowledge base article. Chipset Error Explanation: If the computer fails to meet standard USB requirements, a possible result the soundcard creates a "white noise burst" at the analog audio outputs. This is caused by a flaw in some USB chipsets that were manufactured by Intel using the ICH6 architecture. The chipsets we have verified as having this problem are the 915G, 915P and 925X chipsets, although others may be affected as well. Intel publishes on their web site an Errata that provides a more detailed explanation. Please note that computers that create this problem produce issues with all USB 1.1 audio interfaces, not just those manufactured by Line 6. For instance, Digidesign provides their customers with similar information on this Intel chipset problem. Also note that your computer may have this problem even if other USB devices seem to behave normally. This is because other USB devices (like USB printers and hard drives) generally use USB's bulk mode of transfer, and do not produce noticeable problems if data is momentarily interrupted, as on these problem Intel chipsets. USB 1.1 audio devices, which have to continually input and output audio data at a fixed sample rate to provide audio, require USB's isochronous transfer mode, which is intended to guarantee the steady flow of data that is required for audio. These Intel chipsets fail to consistently provide the continuous data flow required for the isochronous mode and audio. If you want to know if your chipset is one of the affected ones, go to this link and download the program CPU-Z 1.30. This program will gather detailed info on your CPU. Once downloaded, run the program, select the "Mainboard" tab and note the information where it says "Chipset" (e.g. Intel i915PM/GM/GMS Rev 03). Solution: We do not have a solution that ensures proper performance on these computers. The most successful workaround we have found is adding a PCI based USB card (to desktop computers with these chipsets) or a CardBus or PCMCIA USB controller card (for laptops with these chipsets). Once these cards are installed, these computers often stop exhibiting the "white noise burst" problem, because the USB implementation on these cards overrides the flawed built-in USB implementation of the computers. Note: ISA motherboards operate at lower bus speeds, and can slow down your computer and can sometimes cause "clicks" in the audio. We recommend using a non-ISA board. 10. Try a Powered USB Hub: Line 6 cannot support the use of powered USB hubs as they can cause connection issues with our server through our software such as Line 6 Monkey or License Manager. Powered hubs can also create connection issues between our devices and our drivers. However, there have been a few cases where powered hubs actually resolve pops and clicks on certain laptops where the USB ports may not be providing enough power to the Line 6 audio interface. This would typically work with Line 6 audio interfaces that are powered via USB IE: UX1, UX2, KB37. 11. Remove all unused USB drivers: The program USBDeview is a small utility that lists all USB devices that are currently connected to your computer, as well as all USB devices that you previously used. It can be downloaded at: http://www.nirsoft.net/utils/usb_devices_view.html Advanced Troubleshooting: As stated previously, some hardware/software configurations simply will not work together, so Line 6 cannot guarantee that any of these adjustments will work on any given computer. We have seen these techniques work for other users who are experienced with advanced computer adjustments. Perform these advanced procedures at your own risk. In some cases, the ultimate resolution was to replace the computer. BIOS Performance Settings: We have seen BIOS settings, especially power management settings such as ACPI, help with audio performance issues. On most Windows computers, you can adjust the BIOS settings by pressing the F10 key as the computer boots up. Check with your PC's documentation for information on how to enter the BIOS settings. In some BIOS, a setting called "SpeedStep" may be enabled. Similar settings to SpeedStep are "EIST Function" (or *Power Now* or *Cool n' Quiet*). Speedstep is an Intel efficiency tool that enables the CPU to speed up and slow down according to the load put on it. However it also changes the voltages running through the CPU accordingly and may cause crackles when the CPU steps up and down. Go into BIOS settings and disable the "SpeedStep" and C1E settings. C1E is the auto voltage setting that is usually enabled along with Speedstep. This should set the CPU to run at its fixed maximum speed with no voltage changes. Here is a link to a page with further BIOS setting recommendations: http://www.tomshardware.com/reviews/bios-beginners,1126-8.html DPC Latency (IRQ hogging): Use Thesycon's DPC Latency Checker (www.thesycon.de/eng/latency_check.shtml) to help detect the possible presence of a hardware device that occasionally takes more than its fair share of interrupt time by displaying latency intervals. Troubleshooting involves disabling hardware one item at a time, then running the Latency Checker each time until the latency subsides in the checker. Replendence LatencyMon: LatencyMon (http://www.resplendence.com/latencymon) checks if a system is suitable for processing real time audio by measuring DPC and ISR excecution times as well as hard pagefaults. It will provide a comprehensible report and find the kernel modules and processes responsible for causing audio latencies which result in drop outs. It also provides the functionality of an ISR monitor, DPC monitor and a hard pagefault monitor. Note: Be sure to read some of the possible root causes for pops and clicks that the developer of this software offers up under the description of this tool. Some of these advanced tips may help you resolve your issue. Registry cleaning: Remnants of old installs may bog down system performance. OS Reinstall: Complete fresh install of your Operating System in the event certain essential OS files or settings have gone bad. Hard Drive Reformat: Reformat the hard drive to clean out the registry and remove any problem-causing files. Reinstalling the OS and other applications after a reformat of hard drive may repair previously unfixable problems, and may improve system performance. USB Bus Corruption/Power Issues: Generally, if you have an IRQ problem, increasing buffer sizes should fix it or at least improve it. If the problem has something to do with USB bus corruption, or a problem with power, then increasing the buffer sizes wouldn't change anything. It is possible that your USB audio issues are being caused by a corrupt or underpowered USB bus on your computer. We recommend that you consult with a qualified computer technician to verify if this is the case. Be advised that most technicians aren't properly equipped to deal with such an in-depth technical issue. They may suggest replacing the motherboard, but that may not fix it unless the replacement is a known working model. This is because the problems stem from design issues on the motherboard and will be common to all motherboards of that revision and model. USB Audio: Fehlerbehebung: Eine kurze Erklärung zu USB Audio Problemen: Die meisten USB Audio Probleme werden durch Abrisse im Datenfluss des USB Signals, welches ein Audiosignal vom Treiber zur Soundkarte schickt, verursacht. Sollte Software oder Hardware den Datentransfer negativ beeinflussen, kann als Resultat ein Rauschen, Krachen oder Knistern entstehen. Solche Einflüsse können außerdem dafür sorgen, dass das Gerät aufhört zu funktionieren, wofür Sie das System dann neustarten müssen damit es wieder funktioniert. Dies würde das Problem jedoch nicht langfristig lösen. Solche Abrisse im Datentransfer sind für die meisten USB Geräte kein Problem (so wie Drucker, Tastaturen, Mäuse,...), da diese Geräte mit einem Paketmodus arbeiten und somit keinen durchgehenden Datenfluss brauchen. Die komplexe Interaktion zwischen Hardware und Software auf verschieden konfigurierten Systemen kann verschiedenste Resultate haben, dazu gehören auch wenige Ausfälle mit Computern, egal mit welchem Gerät dieser verbunden wird. Die erfolgreiche Nutzung eines USB Audio Gerätes auf einem anderen Computer bedeutet meist, dass ein Problem mit dem ursprünglichen Computer besteht. Es gibt keine Einheitslösung für die fehlerfreie Nutzung von Audio Geräten mit dem Computer, aber die meisten Fehler in Verbindung mit USB können anhand folgender Maßnahmen behoben werden: 1. Benutzen Sie den neusten Line 6 Gerätetreiber. Laden Sie diesen hier herunter oder benutzen Sie Ihre Line 6 Monkey Software um ihn zu aktualisieren. Häufig gestellte Fragen zur Deinstallation der Treiber finden Sie hier. 2. Optimieren Sie Ihren Computer zur Audionutzung. Wie Sie dies schaffen können Sie in den folgenden Artikeln unserer Knowledge Base lernen: Optimierung des Computersystems Video Tutorial: Windows Vista/7 Optimierung (Achtung: Nur in Englisch) 3. Überprüfen Sie alle Kabel auf deren Funktionsfähigkeit. Benutzen Sie das kürzeste verfügbare Kabel. Stecken Sie es korrekt ein. 4. Ziehen Sie alle USB Hubs ab: Line 6 unterstützt die Nutzung von USB Hubs nicht. Für kein Produkt. USB Hubs können Rauschen oder Abrisse verursachen. Bitte entfernen Sie jegliche Hubs und verbinden Sie das USB Kabel sofort mit einem USB Port auf der Rückseite Ihres Computers. Mac: Bitte verbinden Sie Ihr Gerät sofort mit dem Mac und nicht mit der Tastatur, da diese auch nur ein USB Hub ist. 5. Stellen Sie die Buffer Größe, Sample Rate und Bit Depth im Line6 MIDI Control Panel ein: PC: Start > Systemsteuerung > wählen Sie die klassische Ansicht > Line 6 Audio and MIDI Devices Mac: Apple > Systemeinstellungen > Other > Line 6 Audio and MIDI Devices Das Fenster des Treibers wird Ihnen einen Buffer Size Regler anzeigen, den Sie auf EXTRA SMALL, MEDIUM, oder LARGE einstellen können. Schalten Sie diesen Regler erst einmal auf MEDIUM oder LARGE um zu sehen ob dies hilft. Versuchen Sie hier sowenig wie möglich oder keine Latenz mehr zu haben während das Rauschen verschwindet. Optional können Sie auch die Sample Rate und Bit Depth Einstellungen so vornehmen, dass diese den Projekteinstellungen Ihrer Aufnahmesoftware entsprechen. Für mehr Informationen können Sie hier klicken. 6. Schalten Sie Geräte mit kabellosen Netzwerken aus: Auf manchen Prozessoren, die eine aktive kabellose Netzwerkverbindung haben, kann während des Aufnehmens/Abspielens die Genauigkeit des Audiosignals beeinträchtigt werden. (z.B. kann man dann Lärm oder Artefakte im Ton hören.) 7. Ändern Sie Ihre Energieoptionen: Ändern Sie die Energieoptionen Ihres Computers (nur PC). Start > Systemsteuerung > Energieoptionen. Ändern Sie hier das Energieschema auf "Immer an". Schalten Sie außerdem alle Einstellungen dieses Schemas auf "Nie". 8. Wählen Sie Ihr Line 6 Gerät als Standard Soundkarte Ihres Computers anhand der folgenden Artikel in unserer Knowledge Base: Assigning your Line 6 Device as a Sound Card on your Windows XP Computer Assigning your Line 6 Device as a Sound Card on your Windows Vista Computer Assigning your Line 6 Device as a Sound Card on your Mac Computer (Achtung, bis jetzt nur in Englisch.) 9. Kaufen Sie eine PCI USB Karte (Desktop Computer) oder PCMCIA USB Karte (Laptop): Diese Karten lösen oft das Problem des Rauschens, lösen Kommunikationsprobleme und andere Probleme da diese den weniger robusten USB Bus Kontroller Ihres Computers überschreiben. Für mehr Informationen über PCI Karten klicken Sie hier. Chipsatz Fehlerbeschreibung: Falls der Computer die standard USB Voraussetzungen nicht erfüllt kann es sein, dass Ihre Soundkarte am Analog Audio Ausgang ein Rauschen erzeugt. Dieser Fehler entsteht aufgrund eines USB Chipsatzes, der von Intel anhand der ICH6 Architektur hergestellt wurde. Die folgenden Chipsätze stellten sich als fehlerhaft heraus: 915G, 915P und 925X, obwohl auch andere Chipsätze diesen Fehler eventuell erzeugen können. Intel hat auf dessen Webseite eine detailliertere Erklärung zu diesem Problem veröffentlicht. Achtung, Computer mit diesem Soundproblem haben dieses mit allen USB 1.1 Audio Geräten, nicht nur mit Line 6 Geräten. Ihr Computer könnte dieses Problem sogar haben wenn all Ihre anderen USB Geräte normal funktionieren. Die meisten anderen USB Geräte benutzen einen Pakettransfer über USB und haben somit dieses Problem nicht wenn der Datenfluss unterbrochen wird, da diese kein durchgehendes Signal brauchen im Gegensatz zu Audiogeräten. USB 1.1 Audio Geräte brauchen einen durchgehenden Datenfluss ansonsten kommt es sofort zu Problemen, wie bei diesen Intel Chipsätzen. Audio Geräte, die eine festgelegte Samplerate benutzen und so ein durchgehendes Input/Output Signal über USB brauchen benutzen die isochrone Übertragung des USBs, welche den durchgehenden Datenfluss garantieren soll. Die hier genannten Intel Chipsätze können jedoch keinen kontinuierlichen Datenfluss gewährleisten. Wenn Sie wissen wollen ob Ihr Chipsatz einer der betroffenen ist, folgen Sie diesem Link und laden sich die CPU-Z Software herunter. Dieses Programm wird detaillierte Informationen über Ihren Prozessor sammeln. Starten Sie das Programm, klicken Sie auf "Mainboard" und notieren Sie sich was unter "Chipset" geschrieben steht. (z.B. Intel i915PM/GM/GMS Rev 03) Lösung: Wir können für dieses Problem leider keine Universallösung anbieten, eine PCI USB Karte zu verwenden hat bei diesem Problem jedoch die höchste Erfolgsrate. (für den Computer mit diesen Chipsätzen, ansonsten eine CardBus oder PCMCIA USB Karte für Laptops mit diesen Chipsätzen). Sobald eine dieser Karten installiert ist kommt es auf betroffenen Systemen oftmals nicht mehr zum Rauschen da diese Karte dann die standard USB Implementierung Ihres Computers überschreibt. Notiz: ISA Mainboards verwenden eine niedrige Bus Geschwindigkeit und können so Ihren Computer verlangsamen, was zu Klicks im Ton führen kann. Wir empfehlen kein ISA Mainboard zu benutzen. 10. Versuchen Sie es mit einem USB Hub mit eigener Stromversorgung: Line 6 unterstützt die Nutzung eines USB Hubs nicht, da diese Verbindungsprobleme mit unserem Server durch unsere Software wie Monkey oder License Manager verursachen können. Außerdem können USB Hubs mit Stromversorgung Verbindungsprobleme zwischen unseren Geräten und deren Treibern verursachen. Trotzdem hatten wir Fälle in denen USB Hubs mit Stromversorgung Klicks und Knacken auf manchen Laptops entfernt haben da verschiedene normale USB Ports vielleicht nicht ausreichend Strom für das Line 6 Gerät zur Verfügung stellen. Das würde dann typischerweise mit Line 6 USB Geräten funktionieren wie UX1, UX2 oder KB37. 11. Entfernen Sie jegliche unbenutzten USB Treiber: Das Programm USBDeview ist ein kleines Programm mit dem Sie sich alle USB Geräte auflisten lassen können, die verbunden sind und die zu einem früheren Zeitpunkt mit Ihrem Computer verbunden wurden. Sie können es hier herunterladen. Fortgeschrittene Problembehebung: Wie schon vorher beschrieben, funktionieren manche Software/Hardware Konfigurationen nicht miteinander, was bedeutet, dass Line 6 nicht dafür garantieren kann, dass diese Veränderungen bei Ihnen funktionieren. Bei manchen Benutzern haben diese Einstellungen jedoch bereits funktioniert. Sie führen diese Einstellungen auf eigene Gefahr durch. In manchen Fällen war die letzte Möglichkeit der Ersatz des Computers. BIOS Leistungseinstellungen: Wir haben verschiedene BIOS Einstellungen gesehen, besonders Energiemanagement Einstellungen wie ACPI, die bei Audioproblemen geholfen haben. Auf den meisten Windows Computern kann man das BIOS anhand der F10 Taste während des Startens des Computers aufrufen. Überprüfen Sie Ihre Quellen zu Ihrem Computer um herauszufinden wie Sie das BIOS öffnen. Bei manchen BIOS muss man eine Einstellung namens "SpeedStep" abschalten. Ähnliche Einstellungen sind die "EIST Function", "Power Now" oder "Cool'n'Quiet". Speedstep ist ein Tool von Intel, welches den Prozessor schneller oder langsamer macht je nach Benutzung. Es ändert jedoch die Spannungszufuhr, die Ihr Prozessor erhält und kann zu Knistern führen wenn der Prozessor langsamer oder schneller wird. Gehen Sie in Ihre BIOS Einstellungen und schalten Sie die "Speedstep" und C1E Einstellungen aus. C1E ist eine automatische Spannungseinstellung die meist mit Speedstep angeschaltet wird. Durch diese Einstellung sollte Ihr CPU nun auf fixierter Maximalgeschwindigkeit laufen ohne Spannungsschwankungen. Klicken Sie hier für weitere BIOS Einstellungen. DPC Latenz (IRQ hogging): Benutzen Sie den DPC Latency Checker (www.thesycon.de/deu/latency_check.shtml) um zu überprüfen ob ein Teil Ihrer Hardware mehr Latenz hat als normalerweise, indem es Ihnen alle Latenz Intervalle anzeigt. Problemlösung hierzu bedeutet ein Gerät vom Computer entfernen und mit dem Tool überprüfen ob die Latenz nachlässt. Replendence LatencyMon: LatencyMon (http://www.resplendence.com/latencymon) überprüft ob Ihr System für Echtzeit Audio geeignet ist indem es DPC und ISR Ausführungszeiten und hard pagefaults überprüft. Es führt einen ausführlichen Bericht aus und wird die Hauptprobleme für Audiolatenzen finden. Außerdem dient es als ISR Monitor, DPC Monitor und hard pagefault Monitor. Achtung, lesen Sie die möglichen Gründe für Klicks und Knacken, die der Entwickler der Software unter der Beschreibung des Programms bereitgestellt hat, durch. Manche dieser Tipps könnten Ihnen bei der Problemlösung helfen. Registry Cleaning: Überbleibsel alter Installationen könnten Ihr System beeinträchtigen. Neuinstallation des Betriebssystems: Komplette Neuinstallation Ihres Computers falls essentielle Dateien oder Einstellungen Ihres Betriebssystems korrupt sind. Korruption des USB Bus und Energie Probleme: Im Allgemeinen sollte eine Vergrößerung der Buffer Größe IRQ Probleme lösen oder verbessern. Sollte das System in Zusammenhang stehen mit USB Bus Korruption oder Problemen mit der Stromversorgung wird die Veränderung der Buffer Größe keinen Unterschied machen. Es wäre möglich, dass Ihre USB Audio Probleme durch einen kaputten oder mit nicht ausreichend Strom versorgten USB Bus Ihres Computers hervorgerufen werden. Wir empfehlen das Konsultieren eines qualifizierten Computertechnikers um diesen Fall zu untersuchen. Bitte nehmen Sie zur Kenntnis, dass die meisten Techniker nicht für solch ein tiefgehendes technisches Problem ausgerüstet sind. Es könnte sein, dass diese Ihnen raten das Mainboard zu ersetzen, was nicht unbedingt das Problem löst, da diese Probleme oft Konstruktionsprobleme der Mainboardreihe sind und oftmals bei mehreren Mainboards gleich sind. USB Audio: Résolution de problèmes: Une explication courte concernant les problèmes USB audio: La plupart des problèmes USB audio sont causés par des interruptions du flux de données du signal USB qui transfère un signal audio du pilote à la carte de son. Si logiciel ou hardware nuisent le flux de données, le résultat peut-être un bruit, craquer ou crépiter. Ces influences peuvent aussi cesser l'appareil. Vous devez redémarrer votre système pour temporairement fixer ce problème. Ces interruptions du flux de données sont aucun problème pour la plupart d'appareils USB (comme imprimante, clavier, souris,…) parce que ces appareils travaillent avec un mode paquet donc n'ont pas besoin d'un flux de données. Cette interaction complexe entre le logiciel et le hardware sur des systèmes différemment configurés peut avoir des résultats très différents ce qui inclut des échecs avec des ordinateurs connecté aves n'importe quel appareil. L'utilisation avec succès sur un autre ordinateur veut dire généralement qu'il y en a un problème avec l'ordinateur d'origine. Il y en a aucune solution parfaite pour ces problèmes audio mais les pluparts des erreurs en association avec USB peuvent être résous avec ces mesures: 1. Utilisez le plus nouveau pilote Line 6 pour votre appareil. Téléchargez et installez-le de ce site web ou utilisez le logiciel Line 6 Monkey pour cette mise à jour. Ici vous pouvez trouver la foire des questions concernant la désinstallation des pilotes. 2. Optimisez votre ordinateur pour l'utilisation audio. Vous pouvez trouver comment optimiser votre ordinateur dans les articles suivants de notre Knowledge Base: Optimisation des systèmes ordinateurs / Vidéo tutoriel: Optimisation Windows Vista et 7 (Attention, Anglais uniquement) 3. Vérifiez tous les câbles s'ils fonctionnent correctement. Utilisez le câble le plus court. Insérez-le correctement. 4. Détachez tous les hubs USB: Line 6 ne soutienne pas l'utilisation des hubs USB pour aucun produit. Les hubs USB peuvent générer des bruits ou interruptions. Détachez tous les hubs USB et connectez votre câble USB directement à un port USB en arrière de votre ordinateur. Mac: Veuillez connectez l'appareil directement au Mac et pas au clavier. Le clavier est un hub USB. 5. Réglez le "Buffer Size", "Sample Rate" et "Bit Depth" dans le menu Line 6 MIDI Control Panel: PC: Démarrer > Panneau de configuration > choisissez la vue classique > Line 6 Audio and MIDI Devices Mac: Apple > Préférences Système > Other > Line 6 Audio and MIDI Devices La fenêtre du pilote vous montrera le contrôleur "Buffer Size", lequel vous pouvez mettre sur EXTRA, SMALL, MEDIUM et LARGE. Mettez-le sur MEDIUM ou LARGE et voyez si cette option aide. Essayez de réduire la latence pendant le bruit disparaît. Optionnellement, vous pouvez régler la Sample Rate ou Bit Depth jusqu'à ceux correspondent aux règlements du projet de votre logiciel d'enregistrement. Pour des informations supplémentaires; cliquez ici. 6. Éteignez les appareils aux réseaux sans fil: Sur certains processeurs, qui ont une connexion de réseau sans fil active, la précision du signal audio peut nuire pendant lire/enregistrer. (par exemple: on peut entendre du bruit ou artéfacts) 7. Changez vos réglages d'énergie: Changez les options d'alimentation de votre ordinateur (PC uniquement). Démarrer > Panneau de configuration > Options d'alimentation. Changez tous à "Jamais". 8. Choisissez votre appareil Line 6 comme carte de son de votre ordinateur en utilisant les articles suivants de notre Knowledge base: Assigning your Line 6 Device as a Sound Card on your Windows XP Computer Assigning your Line 6 Device as a Sound Card on your Windows Vista Computer Assigning your Line 6 Device as a Sound Card on your Mac Computer (Attention tous en anglais) 9. Achetez une carte PCI USB (ordinateur desktop) ou carte PSMCIA USB (portable): Ces cartes résolvent souvent le problème du bruit ou de communication mais aussi d'autres problèmes parce qu'ils remplacent le contrôleur USB faible de votre ordinateur. Pour des informations supplémentaires, cliquez ici. Description d'erreur chipset: Si l'ordinateur ne satisfait pas aux préalables c'est possible que votre carte de son cause un bruit à la sortie audio. Cette erreur est causée par un chipset USB fabriqué avec l'architecture ICH6 de Intel. Les chipsets suivants sont défectueux: 915G, 915P et 925X. Des autres chipsets peuvent être touchés également. Intel a publié une explication détaillée concernant ce problème. Attention, les ordinateurs qui ont ce problème l'ont avec tous les appareils USB 1.1, pas seulement avec les appareils Line 6. Votre ordinateur pourrait avoir ce problème même si tous les autres appareils USB fonctionnent correctement. La plupart des appareils USB utilisent le transfert de paquet et n'ont pas ce problème si le flux de données est interrompu parce qu'ils n'ont pas besoin d'un flux contrairement aux appareils audio. Les appareils audio USB 1.1 ont besoin de ce signal ou des problèmes apparaissent directement comme avec les chipsets Intel ci-dessus. Les appareils audio utilisant une Sample Rate fixé ont besoin d'un flux de données via USB et utilisent la transmission isochrone. Les chipsets Intel ci-dessus n'assurent pas ce signal isochrone. Si vous voulez savoir quel chipset est dans votre ordinateur, utilisez ce lien et téléchargez le logiciel CPU-Z. Ce programme vous donne des informations détaillées de votre processeur. Démarrez ce programme, cliquez sur "Mainboard" et notez qu'est-ce qui est écrit sous "Chipset". (Par exemple Intel i915PM/GM/GMS Rev 03) Solution: Nous ne pouvons pas offrir une solution parfaite pour ce problème mais l'utilisation d'une carte PCI USB a un taux de réussite élevé. (Pour les ordinateurs avec ces chipsets. Vous avez besoin d'une carte CardBus ou PCMCIA USB pour les portables avec ces chipsets) Une fois cette carte est installée, le bruit disparaît souvent des systèmes, parce que la carte remplace l'USB standard de votre ordinateur. Note: Les cartes mère ISA utilisent une vitesse Bus faible et peuvent ralentir votre ordinateur, que peut conduire à un clic dans le son. Nous recommandons de ne pas utiliser les cartes mère ISA. 10. Essayez un hub USB alimenté: Line 6 ne soutient pas les hubs USB parce qu'ils peuvent causer des problèmes de connexion entre notre serveur et nos logiciels comme Monkey ou License Manager. Les hubs USB peuvent également causer de problèmes de connexion entre nos appareils et ces pilotes. Mais nous avons eu des cas ou un hub USB avec alimentation a éliminé les problèmes du son parce que certains ports USB n'ont pas l'énergie requise. Ca peut fonctionner typiquement avec les appareils USB de Line 6 comme UX1, UX2 ou KB37. 11. Supprimez tous les pilotes USB inutilisés: Le programme USBDeview est un programme qui liste tous les appareils USB connecté à votre ordinateur et qui ont été connectés à votre ordinateur. Vous le pouvez télécharger ici. Résolution avancée des problèmes: Line 6 ne peut pas garantir que ces réglages fonctionnent pour vous parce qu'il y en a des configurations logiciel/hardware qui simplement ne fonctionnent pas. Mais, chez certains utilisateurs, ces modifications ont déjà fonctionnés. Vous faites ces réglages de votre seule responsabilité. Pour certains cas, un nouvel ordinateur était la dernière possibilité. Réglages de performance BIOS: Nous avons vu certaines configurations BIOS particulièrement des réglages d'alimentation comme ACPI, qui ont résous des problèmes audio. Sur la majorité des ordinateurs Windows, on peut ouvrir le BIOS en appuyant F10 pendant le démarrage de l'ordinateur. Vérifiez votre documentation de l'ordinateur pour découvrir comment vous pouvez ouvrir le BIOS sur votre ordinateur. Pour quelques BIOS, on doit désactiver l'option "SpeedStep". Des options similaires sont "EIST function", "Power Now" ou "Cool'n'Quiet". Speedstep est un outil d'Intel qui ralentit ou accélère le processeur selon l'utilisation. Cet outil change la tension d'alimentation du processeur et peut faire des crépitements si le processeur devient plus rapide ou lent. Ouvrez votre configuration BIOS et éteignez "Speedstep" et l'ajustement C1E. C1E est un réglage pour la configuration automatique de la tension, ce réglage est activé avec Speedstep. Avec cette configuration, votre processeur tourne sur vitesse maximale sans fluctuations de tension. Cliquez ici pour des configurations supplémentaires BIOS. Latence DPC (IRQ hogging): Utilisez le DPC Latency Checker (http://www.thesycon.de/eng/latency_check.shtml) pour vérifier si une pièce du hardware a une latence trop élevée que normalement. Ce programme vous montre tous les intervalles de latences. Résolution du problème sera de détacher un appareil de votre ordinateur et vérifiez si la latence diminue. Replendence LatencyMon: LatencyMon (http://www.resplendence.com/latencymon) vérifie si votre système est approprié pour audio en temps réel en vérifiant les latences DPC, ISR et les pagefaults. Ce programme réalise un rapport détaillé et trouvera les problèmes principaux des latences audio. Ce programme est aussi un moniteur ISR, DPC et hard pagefault. Attention, veuillez lire les causes possibles pour craquer et cliquer que le développeur offert sous la description du programme. Certains conseils pourraient vous aider. Registry Cleaning: Les restes des installations anciennes pourraient nuire votre système. Réinstallation du système d'exploitation: Réinstallation entièrement de votre ordinateur si des fichiers ou configurations sont corrompus. Corruption des Bus USB ou problèmes d'alimentation: En général, une augmentation de la largeur Buffer peut résoudre ou améliorer des problèmes IRQ. Si votre système a un problème de corruption USB bus ou avec l'alimentation, cette réglage du buffer ne aura aucun effet. C'est possible que votre problème USB audio soit à cause d'un USB bus cassé ou s'il n'obtient pas assez d'énergie. Nous recommandons de consulter un ingénieur en informatique qualifié pour enquêter ce problème. Attention, la plupart des techniciens ne sont pas équipé pour ses problèmes spécifiques. C'est possible qu'ils vous disent de remplacer la carte mère mais ca résous pas nécessairement votre problème parce que ces problèmes sont souvent des problèmes de construction d'une série de modèles. Donc ce problème pourra persister.
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