Re[2]: [MP3 ENCODER] bringing down one (more) mp3 restriction [LAME case projection]

[vdbj]

Hello Mark,

Thursday, May 18, 2000, 8:26:31 PM, you wrote:

MT> There are still a couple of problems:  the first and last 96
MT> samples will be attenuated by the MDCT window (multiplied
MT> by a function which goes from 0 up to 1) so the volume will
MT> go to 0 at the start and end.  (= clicks if you concatenate
MT> the .wav files together).  

After reading that extensive explanation that you posted a few weeks
ago, I'm under the impression that 96 0-samples won't change a thing
because these are the cause of the 0->1 factor up to 50% of the first
frame. Apologies for assuming the fix would be easy.
What would be needed at encoding time is some data fed to the
encoder so that, for example, at 12.5% of 1st frame the 0*.75+S*.25
influence would seem S*.75+S*.25 or 0*.75+(S/.25)*.25. But I have, of
course as ever, no idea how and or what data to feed to the encoder as
50% overlap from last frame or how to deform the first 50% of the 1st
frame so that you can start it at nominal strength instead of 0->1.

apologies for the rubbish ;)

-- 
Best regards,
 vdbj                            mailto:[EMAIL PROTECTED]


--
MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )