Re: [MP3 ENCODER] why does CD use 75 frames/s?

[Alberto Garc�a]

On Mon, 31 Jul 2000, Roel VdB wrote:

> Now I thought I'd seen it all, it comes to my attention cue files, so
> I assume also CD's, use a 'frame' as base unit, being 1/75 s.  Anyone
> heard of this, or did everyone mistook the xx:yy:zz for
> min:sec:sec/100?

        xx:yy:zz

        zz are sectors. A sector in CDDA mode can store 2352 bytes, and
when you write CDs you have to write full sectors, that's why you have to
pad the audio data with zeroes when burning wavs obtained from mp3s.

        So:

        44100*2*2 = 176400 bytes/second of audio
        176400/2352 = 75 blocks/sencond.

        mailto:[EMAIL PROTECTED]              -= Alberto Garc�a =-
        http://www.cryogen.com/berto
        Clave p�blica PGP disponible         Fidonet: 2:348/105.108

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