[vorbis] ReplayGain support for Vorbis

[Erik Turner]

I agree with storing everything as a FLAC.  I came to this
conclusion a few months back when I wanted to convert
my CD collection (which I had already ripped to MP3 using
EAC/LAME) to OggVorbis.  I had to extract all the CD
Audio *again*.  But this time, I kept the WAV (FLAC) files
so that if I need to convert to another format I won't incur
yet another rip pass.

Once I had decided to save the FLAC files, I couldn't see
the need for storing my music in OggVorbis format - the
FLAC files would be  a better source.

The only problem with ripping to FLAC is that EAC doesn't
support tagging FLAC's so I had to encode everything in
the filename.  And now, if FLAC's had replay gain, I would
be a happy camper.

On my "to do" list is building a server that converts the
FLAC files to properly tagged Ogg streams for playing
across slower data links.

My 2 cents,
Erik Turner

----- Original Message -----
From: "Wilson" <defiler at null.net>
To: <vorbis at xiph.org>
Sent: Tuesday, January 15, 2002 12:57 PM
Subject: Re: [vorbis] ReplayGain support for Vorbis

<p>----- Original Message -----
From: "Moritz Grimm" <gtgbr at gmx.net>
To: <vorbis at xiph.org>
Sent: Tuesday, January 15, 2002 11:29 AM
Subject: Re: [vorbis] ReplayGain support for Vorbis

<p>> Wilson wrote:
>
> Ummm... but the point in lossless coding is having the original back
> after decoding it. Any alteration to that audio makes no sense to me.
> Why don't you use Ogg at -q8 or higher instead (or mp+ --insane, if you
> wish)? I really doubt that this is too little quality, even for a Top
> 100 collection of CDs. The advantage in terms of filesize can't be left
> out, no matter how "cheap" an 80GB HDD is nowadays. IIRC (2nd hand info
> from a mail to the list) some really audiophile audio engineer was more
> or less satisfied with Ogg > -q8 or -q9, so ... using FLAC for casual
> listening really makes no sense.

I'm talking about 160GB hard drives here. A single one can hold almost 400
CDs in FLAC format.
q9 Oggs are coming right up there on FLAC bitrates, so why not take the
extra step and remove any possible ugly results? (udial.wav, even though
it's not exactly a fair test, is an example.) With lossless compression, you
can be certain that you won't "suddenly" start hearing an artifact when you
upgrade your equipment. I'm sure q9 Ogg is good enough, but given the minor
incremental cost of moving up to FLAC, it's an option I would like to have.
Also, AFAIU, you can return to the "original" file with the ReplayGain
system. Seems like a good fit with a lossless codec.

<snip>

<p><p>--- >8 ----
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