search for: nb_preprocess

Hi Jean Marc & List, So I have been fiddling with the denoiser (again). While poking around I noticed that nb_preprocess is basically a counter that is mod-ded with 100 (the default), which causes Smin[] to be re- seeded with the value in Stmp[] (min of the previous adaptation period). Smin[] is then used to update the noise probability, which is (probably) less likely when adaptation period is shorter. Ok so that...

.... In general, I would say that the VAD-based adaptation is almost useless now with the MCRA. Jean-Marc Le lundi 21 f?vrier 2005 ? 01:11 -0800, Tom Harper a ?crit : > Hi Jean Marc & List, > > So I have been fiddling with the denoiser (again). While poking > around I noticed that nb_preprocess is basically a counter that > is mod-ded with 100 (the default), which causes Smin[] to be re- > seeded with the value in Stmp[] (min of the previous adaptation > period). Smin[] is then used to update the noise probability, which > is (probably) less likely when adaptation period is s...

...much while continuous speech, but when we speak for short intervals, the start of and end of sentences have clatter (maybe clatter does not meet that sound, there is a defect). To overcome this problem, are SPEEX_PREPROCESS_SET_PROB_START, SPEEX_PREPROCESS_SET_PROB_CONTINUE parameters or if (st->nb_preprocess%200==0) in preprocessor.c (line 608) useful? Thanks a lot in advance, Sincerely, Yasemin -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20061229/b20adaa9/attachment.htm

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