search for: potard

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2009 Dec 16
1
Regression in wideband encoding quality between b1 and rc1
Hello Jean-Marc, and thanks a lot for your quick answer! 2009/12/16 Jean-Marc Valin <jean-marc.valin at usherbrooke.ca>: > On 15/12/09 10:37, Blaise Potard wrote: >> >> Having recently upgrading to speex rc1, It occurred to us that there >> seems to have been a regression in the quality of encoding since >> version beta1. > > Just curious, did you identify where exactly the regression occurred? No. To tell you the truth,...
2009 Dec 15
2
Regression in wideband encoding quality between b1 and rc1
Hello, To start with, thanks a lot for making such a great voice codec available! Having recently upgrading to speex rc1, It occurred to us that there seems to have been a regression in the quality of encoding since version beta1. We are compressing some 22khz wave files in wb mode with maximum quality / complexity in VBR, and the result was really great with speex beta1. With rc1 (or beta3),
2012 Mar 15
0
converting unsigned short sample to signed short sample
Hi Mashal, 2012/3/14 Mashal al-shboul <shboul8989 at yahoo.com>: > Hi Blaise Potard, > Thank you for help. > Actually,i am sure that my samples are unsigned? , specifically, of type > uint16_t which is unsigned 2-bytes, these samples are provided by an audio > driver for an audio subsystem (microphone ADC...) in a wireless sensor > node(intelmote2 ), following is th...
2009 Dec 16
0
Regression in wideband encoding quality between b1 and rc1
On 15/12/09 10:37, Blaise Potard wrote: > Having recently upgrading to speex rc1, It occurred to us that there > seems to have been a regression in the quality of encoding since > version beta1. Just curious, did you identify where exactly the regression occurred? > We are compressing some 22khz wave files in wb mode...
2012 Mar 14
4
converting unsigned short sample to signed short sample
Thanks a lot for replying, The question now is , after subtracting 32767 from each unsigned sample, will the new signed samples represent the same original voice ? ???? For explanation, assume "Hi" is said in 8000 unsigned sample ,if i subtract 32767 from each sample and play the resulting 8000 sample as signed PCM samples,will they be "Hi" ?! Forgive me about my questions ,