naturerecordists
[Top] [All Lists]

Re: inverting a track on a stereo recording to increase gain....huh?

Subject: Re: inverting a track on a stereo recording to increase gain....huh?
From: "Scott Fraser" scottbfraser
Date: Mon May 6, 2013 9:14 am ((PDT))
< What is the actual problem you have with the gain? >

HIs problem is that he has 2 mono tracks, grouped as stereo, with one channel 
out of polarity to the other.

< Is it too low, then why don't just amplify your track.>

Out of polarity channels cancel, so no amount of additional gain will result in 
proper playback volume.

< The way you put it does not quite make sense to me. What is your concept of 
gain?
Usually inverting means inverting the phase.>

It's actually inverting the polarity, related to, but different than phase. 

< If you do this with one channel of a stereo track your stereo picture changes 
dramatically, but it does in no way influence the gain. >

He doesn't have a stereo picture, it's really 2 versions of the same mono 
track, but with opposite polarity. Inverting polarity in this case causes near 
total cancellation, depending on listening location relative to the speakers, 
thus almost no signal. Inverting polarity in a true stereo signal cancels all 
signal common to both channels, resulting in a significant loss of signal 
strength.  

Scott Fraser











"While a picture is worth a thousand words, a 
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.



------------------------------------------------------------------------
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/naturerecordists/

<*> Your email settings:
    Digest Email  | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/naturerecordists/join
    (Yahoo! ID required)

<*> To change settings via email:
     
    

<*> To unsubscribe from this group, send an email to:
    

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/
 
------------------------------------------------------------------------

<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU