Re: [LAU] [Ardour] Offline export with OSC

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To: <linux-audio-user@...>
Date: Wednesday, May 11, 2011 - 11:22 pm

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Fons Adriaensen escribio:

My 2 cents:

Keep -0.2db headroom minimum, or for the lazy/cautious: a peak limiter set=
at -0.2db on the master buss should do the trick. (I'm not a good enginee=
r, so I fall into the second category).

-0.2db seems to "hold" it's value better in most software that resamples.=
Anything higher will almost always end up clipped or limited, in an uncon=
trolled fashion - as Fons pointed out here, some peaks will invariably be=
sampled on either side and the software will just pin everything between=
the samples at 0db. Yuck.=20

I spent an afternoon last year comparing -0.2/-0.1/0.0db max, and I found=
this to be the case almost every time. Never had a stray peak at -0.2db

Shane Richards
Producer, Composer, Multi-instrumentalist
Josh Music, Cali, Colombia
www.josh.com.co
www.shanerichardsmusic.com

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Fons Adriaensen escribio:>If you export to an integer file=
format anything above 0dB will
&gt=
;be clipped.
&gt=
;
&gt=
;OTOH, if the export includes resampling then the peaks in the
&gt=
;exported file will be higher than those at the output of the
&gt=
;master strip. The difference will be small in most cases, but
&gt=
;in theory it is unbounded. Better keep a dB or so of headroom.
My 2 cents:

Keep -0.2db headroom minimum, or for the lazy/cautious: a peak limiter=
set at -0.2db on the master buss should do the trick. (I'm not a good eng=
ineer, so I fall into the second category).

-0.2db seems to "hold" it's value better in most software that resamples=
. Anything higher will almost always end up clipped or limited, in an unco=
ntrolled fashion - as Fons pointed out here, some peaks will invariably be=
sampled on either side and the software will just pin everything between=
the samples at 0db. Yuck. 

I spent an afternoon last year comparing -0.2/-0.1/0.0db max, and I foun=
d this to be the case almost every time. Never had a stray peak at -0.2db<=
/font>

Shan=
e Richards
Producer, Composer, Multi-instrumentalist

Josh Music, Cali, Colombia

www.josh.com.co

www.shanerichardsmusic.com

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