search for: speex_set_speed

Hi. I'm Bill Cox, and I volunteer a bit for the Vinux project, which is Linux for people with vision impairments. Most blind users use a closed-source speech synthesis tool called voxin, as it's very easy to understand at high speed. I would like to make TTS synthesizers based on large recorded vocabularies of actual speech, but to make it useful for the blind, I need to be able to

...t; I was able to easily hack in an option to play back at different > speeds. For example, using "speexdec --speed 2.0 file.enc file.wav" > plays back encoded file.enc at 2X speed. What I did was divide > st->frameSize and st->subFrameSize by the speedup, and added a > SPEEX_SET_SPEED decoder control for the nb_celp decoder. This > produced speech that was 2X faster than the original. > > However, the quality is very poor. This is where it gets harder for > me, as the quality is impacted by so many parts of the code. Can > anyone guess which part of the decoder...

...t; I was able to easily hack in an option to play back at different > speeds. ?For example, using "speexdec --speed 2.0 file.enc file.wav" > plays back encoded file.enc at 2X speed. ?What I did was divide > st->frameSize and st->subFrameSize by the speedup, and added a > SPEEX_SET_SPEED decoder control for the nb_celp decoder. ?This > produced speech that was 2X faster than the original. > > However, the quality is very poor. ?This is where it gets harder for > me, as the quality is impacted by so many parts of the code. ?Can > anyone guess which part of the decoder...

...an option to play back at different >>> speeds. ?For example, using "speexdec --speed 2.0 file.enc file.wav" >>> plays back encoded file.enc at 2X speed. ?What I did was divide >>> st->frameSize and st->subFrameSize by the speedup, and added a >>> SPEEX_SET_SPEED decoder control for the nb_celp decoder. ?This >>> produced speech that was 2X faster than the original. >>> >>> However, the quality is very poor. ?This is where it gets harder for >>> me, as the quality is impacted by so many parts of the code. ?Can >>&gt...

I was able to easily hack in an option to play back at different speeds. For example, using "speexdec --speed 2.0 file.enc file.wav" plays back encoded file.enc at 2X speed. What I did was divide st->frameSize and st->subFrameSize by the speedup, and added a SPEEX_SET_SPEED decoder control for the nb_celp decoder. This produced speech that was 2X faster than the original. However, the quality is very poor. This is where it gets harder for me, as the quality is impacted by so many parts of the code. Can anyone guess which part of the decoder is leading to such poor...

...easily hack in an option to play back at different >> speeds. For example, using "speexdec --speed 2.0 file.enc file.wav" >> plays back encoded file.enc at 2X speed. What I did was divide >> st->frameSize and st->subFrameSize by the speedup, and added a >> SPEEX_SET_SPEED decoder control for the nb_celp decoder. This >> produced speech that was 2X faster than the original. >> >> However, the quality is very poor. This is where it gets harder for >> me, as the quality is impacted by so many parts of the code. Can >> anyone guess which...

...easily hack in an option to play back at different >> speeds. ?For example, using "speexdec --speed 2.0 file.enc file.wav" >> plays back encoded file.enc at 2X speed. ?What I did was divide >> st->frameSize and st->subFrameSize by the speedup, and added a >> SPEEX_SET_SPEED decoder control for the nb_celp decoder. ?This >> produced speech that was 2X faster than the original. >> >> However, the quality is very poor. ?This is where it gets harder for >> me, as the quality is impacted by so many parts of the code. ?Can >> anyone guess which...