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Mixing A Recording In Daw After 1.2 Update

mixing protools

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#1 nickinfrance


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Posted 23 October 2013 - 08:17 AM

Hi all,

I have happily been mixing recordings imported into protools up to now. Today I did my first mix from a recording after the 1.2 update and I'm really struggling with the levels being too low. Anyone else experienced this? I'm having to push the gain up to near max and then bouncing to disk and pushing the gain up again in the mastering stage to get any volume.

I may have just made some error when recording in the first place but I can't think what...
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#2 silverhead


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Posted 23 October 2013 - 08:22 AM

I'm not sure about this, but I would check my Trim settings in the Setup. I think the recorded signal may be post-Trim, and pre-Level. If so, and if your levels are adjusted higher to compensate for a lower Trim setting then that could result in a low recorded signal. Try increasing your Trim levels and decreasing your channel Levels.


.... just a guess.....

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#3 gordwait


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Posted 23 October 2013 - 09:23 AM

I just started trying to connect the M20d to Apple Logic on my Macbook with the 1.2 drivers, etc, and found the levels sent to the DAW to be fairly low, 

but it sounds like it's on purpose. 


User ArneLine6 quoted this:


"It is 24bit audio. The "0" on the M20d is at 0dBu which is an analog reference to encourage a good headroom and match any metering of analog gear that is connected. The full level before clipping is +15.4 dBu which is 0 dBFS, digital full scale. "


And I found out via googling that Apple Logic treats 0db on the metering as 0 dbFS (db full scale) ie if you go above 0 on Logic, that's clipping digitally. 


In a nutshell, sending 0dBu from the M20d to Logic reads as -15.4db on Logic. 

After reading a bunch of other resources, I'm ok with it that way, it does leave lots of headroom, and I set Logic to 24 bit audio to keep some more bits around.


Also, by experimentation, and by Line6 description I think yes, the USB audio out is post Trim, and pre fader, so if you trim your input very low, you will have a very low signal at your DAW..


Here's the thread:




My issue is I can't play audio back from logic to the M20d via USB. 


I also see logic react to audio in from the M20d with a half second or so delay, so I too will have latency complaints if I ever get audio playback from USB working. 


I'm still happy with the M20d for live work, but I was planning on selling my old Presonus firewire26 setup and use the M20d as a replacement. I wanted to take that cash to help pay for a line6 floor monitor..

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#4 actdmusic


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Posted 23 October 2013 - 11:36 AM

I just use the normalize function on my DAW to bring the level up to "normal" 0Db. No big deal ;)  

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#5 dboomer


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Posted 23 October 2013 - 11:45 AM

Yes. .... Normalize is your friend :)

#6 jaminjimlp



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Posted 24 October 2013 - 06:24 AM

In ProTools 10 I use audio Suite to add 10 to 15 dB of gain to each track I found that normalizing sometimes puts a little too much gain in the track so I have made a preset in pt 10 for 10 and 15 dB gain and yes it is for headroom.
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#7 johnnybayless


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Posted 26 March 2014 - 12:19 AM

How do I load the driver to protools for audio streaming to and from the M20d just installing it on my system doesn't work.

I have protools 10 on mac osx snow leapard.

Thank you

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#8 dboomer


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Posted 26 March 2014 - 09:24 AM

Macs use their built-in "Core Audio" feature and do not generally require loading any drivers.

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