chekib chekib
2011-Dec-23 12:00 UTC
[Speex-dev] Issue with Wideband mode for qualities higher than 5
Hello, Merry Christmas and happy new year for everyone. I've started porting Speex 1.2rc1 on a 32-bit microcontroller, so far everything goes fine for Norrowband modes. But when I'm trying to encode in wideband mode with quality higher than 5 then decode my file back, I get inaudible "thing" (just strong noise). - All frames are decoded with correct result (decoder function returns 0 for each decoded frame), so I guess encoded frames are correct. - Starting from quality 5 a low noise becomes audible and gets higher when quality is increased till reaching Quality 8 where I can hear nothing but annoying noise - When I decode a file encoded on my PC (using speex utility with the same config of my encoder) it sounds great. So I suppose the issue might be on my encoder side. - I'm using fixed point configuration, and I updated the MAX_CHARS_PER_FRAME value to 80 (I guess I'd never outpass this value, right? but I checked even with 200). Is there something I should specially take care of for Wideband mode? Did anyone encountered a similar issue? Thank you in advance for any comments/hints :-) With best regards. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20111223/763244ff/attachment.htm
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