[vorbis] File Info Question

[John Denton]

Hi Jeff,

The serial number is generally just a number at random - you could put any
suitable number into the Ogg using -s in OggEnc..

The nominal-bitrate is the "target average" bitrate that the encoder trys to
hit..

The average bitrate is calculated from the encoded Ogg file.. Essentially,
filesize-in-bits / duration-in-seconds. Divide the result by 1000 for kbps..

<p><p>J.
----- Original Message -----
From: "Jeff Flowers" <jeff at jeffreyf.net>
To: <vorbis at xiph.org>
Sent: Monday, January 07, 2002 3:33 AM
Subject: [vorbis] File Info Question

<p>> When I run ogginfo on a .ogg file I created with oggenc (RC3), it lists
some
> things that I have questions about:
>
> 1. Ogginfo lists bitrate_average and bitrate_nominal. Now, bitrate_average
> (I assume) would mean the overall bitrate average for the entire file but
> what does bitrate_nominal mean?
>
> 2. How is the serial number created? Can I tell something specific about
an
> .ogg file by looking at it?
>
> As a side note, a thank you to those developers working on Ogg Vorbis.  I
am
> very, very, happy with what I have seen and I will be ripping my whole CD
> collection to Vorbis instead of MP3.
>
>
>
> Sincerely,
>
>
> Jeffrey Flowers
>
>
>
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