MP3 - VBR - Frame length in time

[Ivo Woltring]

"Florian Schulze" <florian.proff.schulze at gmx.net> wrote in message
news:mailman.7526.1102797974.5135.python-list at python.org...
> On Sat, 11 Dec 2004 20:32:30 +0100, Ivo Woltring <TheDolphin at ivonet.nl>
> wrote:
>
> > mmpython will help but not always.
> > Lets put it this way. I will ALWAYS read through the whole file. In that
> > order I don't mind evaluating each frame. The thing I don't seem to be
> > able
> > to find is the timelength-constants for frames for the different mp3
> > versions, bitrates and layers. Can anybody help me?
>
>  From http://www.oreilly.com/catalog/mp3/chapter/ch02.html#71109
> "In addition, the number of samples stored in an MP3 frame is constant, at
> 1,152 samples per frame."
>
>
> So you only need the samplerate for each frame to calculate the duration
> of that frame.
>
> 1152 samples / 44100 samples per second ~ 0.026 seconds
>
> I don't exactly know whether you need to include mono/stereo into the
> calculation, you would have to test that out.
>
> Regards,
> Florian Schulze
>
thanks!
will try this out
Greetz,
Ivo.