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Re-encoding flac files to "enforce" Replaygain
gaius
post Dec 26 2010, 18:32
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Since I am yet to find a good network server which can apply Replaygain to the flac files being streamed, I was thinking of re-encoding all files, while enforcing a shift in loudness matching the value in each file's Replaygain tag.

Can this be done without losing any information on the lossless files, both the audio (apart from the +-db shift, of course) and tags? Would the loudness shift adulterate the audio, e.g clipping, etc?

cheers,
gaius

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gaius
post Dec 26 2010, 19:51
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Btw, there's another thread discussing volume normalization.
Here I'm thinking specifically about replaygain loudness shifting, so there shouldn't be any dynamic range compression.

But will the re-encoding process alter the audio (waveform) information?
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saratoga
post Dec 26 2010, 19:59
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QUOTE (gaius @ Dec 26 2010, 12:32) *
Can this be done without losing any information on the lossless files, both the audio (apart from the +-db shift, of course) and tags? Would the loudness shift adulterate the audio, e.g clipping, etc?


Applying replaygain will introduce some minor rounding error, so its not lossless. A single bit of rounding error is generally accepted to be inaudible though, so I do not think it would reduce quality.
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A_Man_Eating_Duc...
post Dec 26 2010, 22:47
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if your using foobar

http://www.hydrogenaudio.org/forums/index....showtopic=69664

should do it.


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