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Subject:Clipping - Very Bad - Doesn't make sense
Posted by: bgc
Date:11/10/2000 3:06:00 PM

Hello,
In trying to render a loop at a new pitch and tempo for use
in Vegas Audio, I soloed one track of one complete loop of
a mono bass loop. I set level of the track to 0 dB,
checked the master level meters and verified that the
playback was less than 0dB. I then rendered the loop to a
mono file and open it in Sound Forge. It was clipping very
badly. I played with the track level and finally had to
reduce it BY 10 dB!! to remove clipping. What am I missing
here?
Brett

Subject:Re: Clipping - Very Bad - Doesn't make sense
Reply by: Rednroll
Date:11/12/2000 10:16:00 PM

What program are you rendering it in? I'm kinda confused, since this
is an Acid forum and you mention Vegas? If you're rendering it in
Vegas and are using Vegas Pro, then this was a known bug in Vegas Pro
in version 1.0a. This problem was fixed in version 1.0b. If you're
rendering it in Acid, then I'm not sure what your problem is either
then.

Brett Crockett wrote:
>>Hello,
>>In trying to render a loop at a new pitch and tempo for use
>>in Vegas Audio, I soloed one track of one complete loop of
>>a mono bass loop. I set level of the track to 0 dB,
>>checked the master level meters and verified that the
>>playback was less than 0dB. I then rendered the loop to a
>>mono file and open it in Sound Forge. It was clipping very
>>badly. I played with the track level and finally had to
>>reduce it BY 10 dB!! to remove clipping. What am I missing
>>here?
>>Brett

Subject:Re: Clipping - Very Bad - Doesn't make sense
Reply by: bgc
Date:11/13/2000 1:50:00 PM

Hi Brian,
Forget about the Vegas part, I was just explaining why I was
rendering the loops for use outside of ACID. (I'm also using Vegas
Audio as I posted, not Vegas Pro and am aware of all of the issues
with Vegas.)
It's very simple. Take a loop in ACID, set it to the tempo and key I
want as an end product. Play back the loop and make sure the meters
don't peak. Render the soloed track in ACID and find it's clipping
very badly. I have to reduce the loops track volume by 10 dB to keep
it from clipping. Very odd. Simple problem. Meters in ACID say no
clipping, the rendered loop clips by over 10 dB. Bad.

Brian Franz wrote:
>>What program are you rendering it in? I'm kinda confused, since
this
>>is an Acid forum and you mention Vegas? If you're rendering it in
>>Vegas and are using Vegas Pro, then this was a known bug in Vegas
Pro
>>in version 1.0a. This problem was fixed in version 1.0b. If
you're
>>rendering it in Acid, then I'm not sure what your problem is either
>>then.
>>
>>Brett Crockett wrote:
>>>>Hello,
>>>>In trying to render a loop at a new pitch and tempo for use
>>>>in Vegas Audio, I soloed one track of one complete loop of
>>>>a mono bass loop. I set level of the track to 0 dB,
>>>>checked the master level meters and verified that the
>>>>playback was less than 0dB. I then rendered the loop to a
>>>>mono file and open it in Sound Forge. It was clipping very
>>>>badly. I played with the track level and finally had to
>>>>reduce it BY 10 dB!! to remove clipping. What am I missing
>>>>here?
>>>>Brett

Subject:Re: Clipping - Very Bad - Doesn't make sense
Reply by:
Date:12/15/2000 5:39:00 PM

This is a known-issue, which we've discovered since the
most recent release. When rendering to mono, the mixer
engine is adding both channels at 100% (ACID splits mono
events, because the engine treats only stereo data). This
causes the volume to double. To make sure that you're not
clipping when mixing down to mono, the workaround is to
lower your master volume by 6.1 decibels.

Sorry for the inconvenience, and I hope this helps.

-Joel

Brett Crockett wrote:
>>Hello,
>>In trying to render a loop at a new pitch and tempo for
use
>>in Vegas Audio, I soloed one track of one complete loop
of
>>a mono bass loop. I set level of the track to 0 dB,
>>checked the master level meters and verified that the
>>playback was less than 0dB. I then rendered the loop to
a
>>mono file and open it in Sound Forge. It was clipping
very
>>badly. I played with the track level and finally had to
>>reduce it BY 10 dB!! to remove clipping. What am I
missing
>>here?
>>Brett

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