> 
> So, its seems to be that easy, just count a few lame_readframe 
> without invoking lame_encode, ...
> 
> Ok, searched a bit and what is done is  reading PCM-frames.
> They use 2x1152 bytes, 
> 
>       BUT:  how long is a PCM-Frame in seconds?
> 
> Answers are welcome, and thanx in advance
>  
> Hubertus Krogmann       PaderLinx Neue Informationsmedien GmbH
> Email: [EMAIL PROTECTED]

one frame: is 1152 samples/frame.  
You need to know the sampling frequency of your input file,
probably 44.1kHz?  = 44100 samples/second

1152 samples/frame  / (44100 samples/second)  =  .0261 seconds/frame
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