Displaying 2 results from an estimated 2 matches for "4kpbs".
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2007 Dec 12
1
4kbps sounds robotic on TMS320C64
...get 4kbps was setting quality to 1 so that is the only difference in my test code between using 4kbps and 6kbps.
It seems to be in the encoder. On the ARM side, I encoded a 8Khz 16-bit mono sample in 4kbps mode, decoded it, and playback sounds fine. When I took the same sample and encoded it in 4kpbs on the DSP side, then decoded it on the ARM side, playback sounds robotic. I wonder if I'm missing some macros (#define 's) when compiling for the DSP side, but this can't be the case since 6kbps sounds fine. I'll try your fixed_generic.h suggestion and let you know.
Thanks,
And...
2007 Dec 12
0
4kbps sounds robotic on TMS320C64
...get 4kbps was setting quality to 1 so that is the only difference in my test code between using 4kbps and 6kbps.
It seems to be in the encoder. On the ARM side, I encoded a 8Khz 16-bit mono sample in 4kbps mode, decoded it, and playback sounds fine. When I took the same sample and encoded it in 4kpbs on the DSP side, then decoded it on the ARM side, playback sounds robotic. I wonder if I'm missing some macros (#define 's) when compiling for the DSP side, but this can't be the case since 6kbps sounds fine. I'll try your fixed_generic.h suggestion and let you know.
Thanks,
Andy...