RES: [vorbis-dev]Newbie question

[Paulo Barroso Pinto Junior]

> ----- Mensagem original -----
> De:		xiphmont at xiph.org [SMTP:xiphmont at xiph.org]
> Enviada em:		domingo, 19 de janeiro de 2003 21:24
> Para:		vorbis-dev at xiph.org
> Assunto:		Re: [vorbis-dev]Newbie question
> 
> 
> 
> 
> On Fri, Jan 17, 2003 at 05:53:51PM -0700, Rob D wrote:
> > The problem isnt with finding a place to store the settings. They are
> stored
> > in a separate database, works fine, and is per album, and not per song
> > anyway.
> > 
> > You are right in that it wouldnt make sense to store volume/EQ settings
> in
> > the file, because as you mentioned, the sound system it is played back
> on
> > has a huge affect on the sound relationship.
> 
> Sorry, I was mostly heading off an argument I've had here before; the
> reply wasn't directed specifically at you.
>  
> > The problem is not knowing how to tell the decoder I want 85% volume as
> > opposed to the normal volume when it is creating the PCM samples.
> 
> Yes, sensible.  There are currently no direct EQ hooks (although the
> feature is not an unreasonable one; it does save time to do it in the
> codec).  However, you can have access to the pre-quantization PCM data
> in flaot form using ov_read_float, and multiply/normalize amplitude
> there.  You would have to perform your own integer quantization
> afterward.
> 
> Monty
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