search for: bw_lpc1

...ptimized the persistent EncState memory allocation for multiple channels. The default C64x fixed point implementation allocates 5280 bytes of persistent memory per encoder. I'm willing to restrict my settings to complexity 1, quality 3. It looks like I can share the st->window, lagWindow, bw_lpc1, bw_lpc2, variables which would save 562 bytes per encoder. Are there more variables that can be shared or eliminated if I stick to narrow band? The biggest variables are the inBuf, excBuf, swBuf, innov and I think these have to stay. Jerry J. Trantow Applied Signal Processing, Inc. jtrantow@i...

...->autocorr = speex_alloc((st->lpcSize+1)*sizeof(spx_word16_t)); st->lpc = speex_alloc((st->lpcSize+1)*sizeof(spx_coef_t)); st->interp_lpc = speex_alloc((st->lpcSize+1)*sizeof(spx_coef_t)); st->interp_qlpc = speex_alloc((st->lpcSize+1)*sizeof(spx_coef_t)); st->bw_lpc1 = speex_alloc((st->lpcSize+1)*sizeof(spx_coef_t)); st->bw_lpc2 = speex_alloc((st->lpcSize+1)*sizeof(spx_coef_t)); st->lsp = speex_alloc((st->lpcSize)*sizeof(spx_lsp_t)); st->qlsp = speex_alloc((st->lpcSize)*sizeof(spx_lsp_t)); st->old_lsp = speex_alloc((st->l...

Hi, all. I have two questions about wideband encoding. >From "testenc_wb.c"... 1) tmp=8; speex_encoder_ctl(st, SPEEX_SET_QUALITY, &tmp); tmp=3; speex_encoder_ctl(st, SPEEX_SET_HIGH_MODE, &tmp); tmp=6; speex_encoder_ctl(st, SPEEX_SET_LOW_MODE, &tmp); How to set high_mode and low_mode, if quality is set to '9'? When I set quality '9'