Community : Thread List - JM4 Looper

JM4 Looper - SD card problems

support@line6.com — Mon, 16 Nov 2009 11:55:32 GMT

Hi,

I have the JM4 looper with firmware version 2.09 installed from new but am having problems with SD card functionality.

I have tried 2 SD cards now - both smaller than 2gb - and get the same problem. Every time I try to access the SD card through the looper menu (whether trying to format the card, saving or transfering files from card to looper and vice versa), the looper seems to go straight in to a re-boot or re-start - I never actually get to access the card.

I've also tried recording a track and saving it to the card but get the message "invalid characters in filename" despite only using the suggested file name given by the unit.

Is the unit faulty or there something I need to do?

Also, any chance of allowing playback of mp3 files on the next firmware update? I'm sure this would appeal to anyone and everyone.

Many thanks,

Matt

JM4 Looper snap crackle & pop

support@line6.com — Fri, 20 Nov 2009 05:15:11 GMT

I have a JM4 Looper pedal (firmware 2.09) and I seem to be experiencing an increasing amount of snap, crackle and pop during recording. More specifically, it seems that the recording is fine, but when I go to save it to a WAV file, I get all kinds of pops. At first it was just a few and I thought maybe it was the switch on my guitar or something. But now I'm getting these pops every 5-10 seconds. The recording is fairly simple; a built-in drum track with about 90 seconds of rhythm guitar. Then I save it (as a Jam file) and attempt to record a solo on top of it. Then I save that to a WAV file.

I have also tried just recording a solo straight on top of a built-in song -- no crackle in that case.

You can hear the samples here:

http://www.guitarvibe.com/2009/11/line-6-jm4-looper.html#mp3

This does not appear to be an issue from the guitar or cable as the pops are not present when I load the JAM file; only if I load the WAV file or copy the WAV file to my computer. I have tried turning the JM4 off and on etc to no avail.

Any help would be greatly appreciated. Maybe there's a better way to do this that The JM4 is cool, but I'm getting frustrated with this.

Thanks

-Zack

ZUrlocker at hotmail dot com

www.guitarvibe.com

Chord Progressions

support@line6.com — Mon, 16 Nov 2009 06:05:33 GMT

I just purchased your JM4 Looper. It does everything I thought it would and so much more. I'm relatively new at playing the guitar and the looper seemed like a great device to help me practice and have fun doing it. I was hoping I could use the 'Jam with a Song' function to practice. It seems like a great practice item because it plays a portion of a song over and over -- forever. The only problem I am having is not knowing what chords to play with the songs. Is there a book or paper out there somewhere that could help me out with this? Something that would possible give chord progressions for each song? I've used "Band in the Pocket" CD's before and they have chord progressions with them. Any suggestions?

JM4 stereo out vs speaker cabinet voiced out

support@line6.com — Thu, 12 Nov 2009 03:08:37 GMT

using a 212 belair, line 6 Jm4, and zoom H4n, i run 2 cables out of the JM4 (stereo out) into the H4n. What is the difference between the cabinet voiced line out on the Belair and the stereo outs on the JM4, Thanks

Is it possible to switsh sounds using the switshes of the FM4?

support@line6.com — Sun, 15 Nov 2009 09:41:53 GMT

Hi,

I`m thinking about using my FM4 for live. I was just wondering what possibilities I have to switsh the sounds while I`m playing. I can`t connect my FBV so what do I do? Any help welcome. THX!

Downloads for JM4 Looper

support@line6.com — Tue, 10 Nov 2009 20:45:51 GMT

Can I download more songs to the LM4 looper? If I can where do I go?

Mike

Mixing down to a wave file

support@line6.com — Tue, 10 Nov 2009 02:54:37 GMT

Everytime I try to mix down my song to a wave file I get a SD card write error. It won't transfer .JAM files either. I bought a new SD 2 gig card and formated it in my JM4 and still I can't write to it. I set the security tab so it is suppose to be writable. I even reset all the factory defaults and tried again to no avail...What am I doing wrong?

James Taylor

Reversing Loops

support@line6.com — Tue, 10 Nov 2009 22:16:17 GMT

I'll ask the ultimate stupid question, can we playback the reverse of a loop. Many other pedals DO NOT support this function. Any advice would be greatly appreciated. On the basis of the answer, I'm going to buy a JM4 tomorrow.

I have downloaded and reviewed the manual, I could not find any information on reversing a loop.

Thanks,

Albert.

SD-CARD Problems

support@line6.com — Tue, 03 Nov 2009 14:58:03 GMT

I am trying to update my JM4's Firmware. Purchased a new 2GB SD Card, formatted it on the JM4, but my computer says the card is not formatted so i am unable to copy the fw.bin file to it. Any ideas? If i try to format the card on my computer, it says 'the card can not be formatted'. ??????

JM4 EFX

support@line6.com — Wed, 21 Oct 2009 13:57:08 GMT

HI there

Can the JM4 produce distortion/warm overdriven tones similar to the Ibanez Tubescreamer.

What is the best preset for warm overdriven tones?

Thanks

What is the minimum length, if any required to loop.

support@line6.com — Mon, 09 Nov 2009 18:23:35 GMT

For example, the Jam Man looper pedal has a 1.5 second minimum length of loop, so anything shorter than that has silence after it to fill out the 1.5 seconds. Really annoying if your just trying to record a "stab" or quick hit on the guitar....Anyone know how the JM4 compares in this regard? Thanks!