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Topic: XLD ReplayGain (Read 2773 times) previous topic - next topic
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XLD ReplayGain

Sorry if this has been asked before, but I have spent ages trawling the internet for an answer to this.

In XLD there are two settings related to ReplayGain.
One is in the CD Rip Prefs and is called Scan ReplayGain.
The other is in the LAME option prefs and is called Perform ReplayGain Calculation.
I understand what ReplayGain is but could anyone enlighten me as to what these two options do specifically?

Many thanks.


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Pete

Re: XLD ReplayGain

Reply #1 –
I've never used that program, but LAME has a built in replaygain scan feature that can put tags on files as they're encoded.  Probably that is the one being referred to in the lame settings.

Re: XLD ReplayGain

Reply #3 –
If the "accurate" scanner is merely upsampling to scan for intersample peaks, it may be worth enabling if you care about that sort of thing. It was a popular enough option to end up in foobar2000's ReplayGain scanner, eventually.

Re: XLD ReplayGain

Reply #4 –
As opposed to calculating RG data from the source PCM, accurate, or whatever it is called decodes and scans the newly created mp3 file in order to get correct peak values (correction gain values are essentially going to be the same).  The values are stored in the Lame header, which practically nothing reads.

You said it yourself, people scan with fb2k and they are stored in a tag that just about every compatible player uses already, so what is the point in having that be the second time it is done?

Also, I'd be surprised if Lame's internal algorithm isn't still the original one (pre-R128).

Re: XLD ReplayGain

Reply #5 –
I did not know it was using LAME to scan the files, or that it was storing the tags in the LAME header. How lame.

Re: XLD ReplayGain

Reply #6 –
As command line switches, lame has:

--replaygain-fast (default; calculates track-based peak and correction gain of the input)
--replaygain-accurate (calculates track-based peak and correction gain of the output)
--noreplaygain