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Line Inputs Recordings Failed Since 1.10 Update


Best Answer davec69 , 04 June 2013 - 11:39 PM

 
Success.  We were able to make a recording tonight of both the Main Outputs and the Line Inputs.  
 
We tried a bunch of things, including deleting folders on the PC, re-formatting the SD card, and nothing helped.   The SD card wasn't being recognized by the M20d. 
 
The fix for us was to create a brand new Setup from scratch.  I then added all of the instruments and microphones to the Stage again, did the usual auto trim.  After we did this, the SD card was recognized, and the recording was successful.
 
I have updated my support ticket with the steps that i went through.  Maybe someone smarter than me will chime and tell us what's going on.  All I can suggest is to try creating a new setup from scratch, if you are having problems with the M20d recognizing your SD card, or if your recordings are not working correctly.
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#1 davec69

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Posted 24 May 2013 - 12:03 PM

Our band has made several attempts on recent shows, to capture a recording of both Main and Line Inputs.  We have not had one successful attempt since the 1.10 update. 

 

Prior to the update, it was just a matter of selecting the folder, selecting to record Mains and all inputs, then hit the record button.

 

Since the update, we try this, and the end result is a bunch of blank tracks.  The Main output seems to be recording something.  The last attempt resulted in a couple of the vocal tracks and the keyboards recorded on the Main Output track, but all of the separate line input tracks are empty.  I even tried normalizing them, just in case.  All I get is static.

 

Prior to recording, we auto trim all of the channels, to get a good recording level.  Select the folder on our 32GB SD card, as usual, then hit the record button.   We even hit the mark button between songs, which seems to work.  

 

We can see the green activity lights lighting on the recording screen, during recording, but nothing is there afterwards.

 

 What are we missing here?


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#2 davec69

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Posted 25 May 2013 - 10:03 AM

Anyone?


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#3 antonioctd

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Posted 25 May 2013 - 11:01 AM

If it helps anything, what I've noticed is that I get "blank tracks" if I don't have nothing connected to the main outs.

 

One time I was recording a drummer. Just took the M20d and some click/guide tracks on my phone. 

Miced all the drums and connected the phones out of my phone to the line-ins. 

Sent an aux out to a small mixer to make monitoring to the drummer and record all input channels on an SD card in the M20d. 

 

The plan was to import the drum tracks to a DAW and then add the other instruments.

 

I was getting "blank tracks" in the recording until I plugged a cable to one of the main out! Yes, just a cable with no speaker in the other end! LOL 

I seams like if the m20d sees nothing connected to the main out it does no record audio and creates empty wave files...

 

No big deal. I just carry a female XLR plug, with no cable, with me any time I want to use the console to just as a recorder. 

And I do this a lot of times because in the gigs were there is a sound company I ask for the direct outs or some aux sends and plug them to the M20d just to record the show  :D


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#4 davec69

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Posted 25 May 2013 - 04:18 PM

Thanks for the response.  That is strange.  

 

Actually, I have my L3M's plugged into the digital connection, but I do have two reference monitors plugged in the the main outs.

 

I'll try unplugging then plugging them next time and see if it makes any difference.


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#5 antonioctd

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Posted 27 May 2013 - 01:13 AM

Ok I'm furious now!

 

Yesterday had a an important rehearsal that was supposed to be recorded for reference. I've miced everything and created a recording session/folder on the M20d for each song. 

 

We did 2 passes of each song. So we have recording 1 & 2 for each. 

 

Today I've stetted every thing up for a quick mix and send mp3 by email to every one so they can review/practice some details. 

 

What I've fund on the SD card: Empty wave files!!!!!

 

Line6: what the f*** is this????????????!!!!!!!!!!!!!!??????????


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#6 davec69

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Posted 27 May 2013 - 02:48 AM

I know the feeling

 

Ok I'm furious now!

 

Yesterday had a an important rehearsal that was supposed to be recorded for reference. I've miced everything and created a recording session/folder on the M20d for each song. 

 

We did 2 passes of each song. So we have recording 1 & 2 for each. 

 

Today I've stetted every thing up for a quick mix and send mp3 by email to every one so they can review/practice some details. 

 

What I've fund on the SD card: Empty wave files!!!!!

 

Line6: what the f*** is this????????????!!!!!!!!!!!!!!??????????


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#7 emmebbi

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Posted 27 May 2013 - 05:25 AM

Did you have one saved scene into your saved set-up??
In my experience you ALWAYS MUST save at least one SCENE for each SET-UP. And everything work perfectly.
Now as soon as I prepare a band on my m20d, I save one scene into my set-up. And if I do some recordings, I know that each recording is usable ONLY into the setup + scene where it was done.
I hope that the next update'll do these things automatically.

About the recording/listening level, I want to say that the real clipping limit is about +15db reading on the channel vu-meter. So after you found the correct gain and do all tweaking, you can turn your channel volume up until reading on the channel led scale a maximum of about +15db or 1/2 db less. Do the same on the master level volume. You'll have all available dynamic into your speakers and a good recording level.
I hope you'll find good these suggestions
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#8 litesnsirens

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Posted 27 May 2013 - 06:38 AM

That's bizarre behaviour that you guys are getting. I haven't done a ton of recording with my M20d yet but everything I have done has worked perfectly. I have had some issues getting the M20d to recognize my SD cards from time to time even some that it previously read, just on a given day it won't read the card. I sometime have to reformat or just mess with it trying to create folders with it on the M20d. But essentially if I see the remaining time displayed in the upper right corner of the record mode screen and the blue SD icon in the upper left ... I know it's all going to work perfectly.
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#9 Digital-sound

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Posted 27 May 2013 - 08:55 AM

I agree with having had no problems. But, I have not included the main outs in my recordings. Sounds like that is when the issue occurs.
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#10 linesixy

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Posted 27 May 2013 - 09:11 AM

Have Don and Arne from Line 6 got any comments on what's happening for these users?

 

I'm currently holding off from buying this mixer.  Looks good on paper - but I just want to be sure that the major features that I'm interested in work OK.  Reliable recording is something that attracts me.


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#11 litesnsirens

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Posted 27 May 2013 - 10:26 AM

I agree with having had no problems. But, I have not included the main outs in my recordings. Sounds like that is when the issue occurs.

 

In all fairness I haven't been including the main outs either, so I can't say one way or another what would happen if I did.  Maybe I'll experiment with this and get back.


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#12 antonioctd

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Posted 27 May 2013 - 11:02 AM

I never include the main out in the recordings.. Don't see the point. But the physical main outs were connected.

 

I bet that the "saving the scene" thing is not the problem.

Because I have done some recording sessions were the sole propose was to import to the daw. I didn't even use the m20d to make live sound on those occasions. It was just a mutitrack recorder. I never saved setup or scene for that sessions and I was always able to import the files the the DAW with no problems.   

 

The only thing I might have done different was to leave the SD card in the M20d on the way to the rehearsal. Then I've turned the console on and did every thing (setup, recording) and just took the SD out at the end when packing up (with the m20d off).

 

As far as I can recall, in previous sessions I took the memory card in my laptop case and inserted it on the m20d after setup, just before recording...  

 

I know this sounds very stupid. But it's the only thing I can think that I might done different. 


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#13 ArneLine6

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Posted 27 May 2013 - 11:48 AM

Did you check the recording folders on the SD card in a computer? If the recording is played back on the M20d with a setup that does not contain the channels to play them back through that would be simple.

But if a recording path to the SD card is assigned, the card is not write protected and has enough free space and record is pressed the recording should absolutely work. We have done extensive testing and we are very interested to get to the bottom of this.

How does the folder/ file path on your card look like? Something like SD/ Recording1/ 1_Kick Drum.wav?


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#14 antonioctd

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Posted 27 May 2013 - 12:00 PM

Yes I checked:

 

SD/rehearsal/"name of the song"/recording (recording 2 , etc...)/1_Kick.wav

 

I've created separate folders for each song because we did at least 2 takes of each and I wanted to have that organised for easy importing to the daw. 

 

Also, there's is other folder that was already on the card from another day:

 

SD/SFM Gig/recording/13_Line (L)

 

It was just a stereo out of the live board (from the sound company) of that gig.

One of those situations were we were no responsible for the sound and I used the M20d just as a recorder. 

That one worked well.


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#15 davec69

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Posted 27 May 2013 - 01:47 PM

Here's a pic of my folder structure on the SD card.   All of the files except the Main Outs file are blank.

 

m20drecording1.png


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#16 antonioctd

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Posted 27 May 2013 - 02:28 PM

Ok, I've been brain storming about this and I'll log here my toughs.

Please be warned that I'm a guitar player and I sometimes I can't even program my dish washer to turn on at a specific time  :P

 

I've been thinking about the recording session with the drummer that I posted before.

 

When we realized the recordings were not playing back on the M20d we took the card out to check on the laptop. 

Then we reinserted the card on the M20d and plugged the cable to the main out assuming that it was the problem because it was the only thing we've done differently (not connecting the main outs). 

 

But that and the fact that last recording fail occurred when I turned on the M20d with the SD already inserted, leads me to think that the problem is related to the time when the SD in inserted and the M20d software failing to index or recognize something about the memory on the card.

 

If this is completely stupid please ignore. I'm trying to help providing data because I would like this to be solved ASAP....


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#17 pierrebriend

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Posted 27 May 2013 - 08:29 PM

I do also have a MAJOR problem with the RECORD mode. Each time I tried to use it during a gig, I get :
- input files 1 to 8 OK, BUT input 9 to 16 wave files corrupted (loud pink noise....)
- the mix recording is OK for all inputs
- and not least, very often during RECORD session I COMPLETLY LLOSE TEH CONTROL of the M20d. The solution I fou,d is to set off and ON the mixer. It takes 30 to 40 seconds, very uncomfortable during a Gig. !!

I have tested different sd cards : 8 Go to 32. Class 4 and class 10 : same bad results pn files! And lost of control !!

Did anyoneone encounter such problem and has a solution or at least a diagnostic process to follow'' I will test the recording mode via usb to my computer..
Should I precise that I need the 16 inputs with my band

Thank you for help...
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#18 ArneLine6

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Posted 28 May 2013 - 08:32 AM

We are trying to reproduce this and to find out what these empty files are. When the SD card is removed during recording or before saving (spinning wheel, a few seconds) the files are corrupt and do not play.

When the SD card is too slow and not class 10 some tracks can be corrupted. There is no easy way to know if the card is ok since they can be old or counterfeits but a new, brand class10 card from a mainstream dealer should work.

When you try to play your files in a computer do they play silence or not at all?


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#19 antonioctd

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Posted 28 May 2013 - 08:59 AM

We are trying to reproduce this and to find out what these empty files are. When the SD card is removed during recording or before saving (spinning wheel, a few seconds) the files are corrupt and do not play.

When the SD card is too slow and not class 10 some tracks can be corrupted. There is no easy way to know if the card is ok since they can be old or counterfeits but a new, brand class10 card from a mainstream dealer should work.

When you try to play your files in a computer do they play silence or not at all?

 

What you mean by removing the card before saving?

I usually only remove it after the m20d is turned of. When I'm packing to go home... 

But I don´t always save setup or scene... Is that what you mean?

 

The files play silence

if you normalize them in a daw you'll get loud white noise.

 

My card is a class 10 (30MB/s) SanDisk Ultra  and is not old by any means.

 

Thanks  


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#20 antonioctd

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Posted 28 May 2013 - 09:18 AM

According to this site: http://www.sounddevi...rs/record-time/ 24bit 48khz audio uses 8.24Mb per minute. 

 

So,

8.24 / 60s * 16 channels = 2.20MB/s (aprox)

 

By this calculation even  a class 4 card (4MB/s) is more than enough. Am I miscalculating this? 


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