search for: split_cb_search_shape_sign_n1

....18% open_loop_nbest_pitch 0.12% qmf_decomp No preprocessor: (overall 2.12%) 0.43% split_cb_search_shape_sign 0.23% fir_mem_up 0.22% filter_mem2 0.21% vq_nbest 0.18% open_loop_nbest_pitch 0.11% qmf_decomp Speex 1.0.7: With preprocessor: (overall 2.33%) 0.28% speex_preprocess 0.25% vq_nbest 0.23% split_cb_search_shape_sign_N1 0.21% fir_mem_up 0.18% open_loop_nbest_pitch 0.18% filter_mem2 0.12% split_cb_search_shape_sign 0.11% qmf_decomp No preprocessor: (overall 1.95%) 0.26% vq_nbest 0.23% split_cb_search_shape_sign_N1 0.21% fir_mem_up 0.20% open_loop_nbest_pitch 0.16% filter_mem2 0.13% split_cb_search_shape_sign 0.12%...

Saju Palayur <saju_pa at hotmail.com> writes: > Hi > > > > We have ported the Narrow band 8 Khz Speex encoder and decoder on to TI DSP 5505 > > > > To compress 20ms of 16 bit audio sampled at 8Khz it takes 4.2ms. > > Is there any optimizations I can do to make it run faster. The first thing to do would be to profile the code (I assume you're using

Hi all. I'm starting to study how speex works because I would like to understand in deep how a CELP coder/decoder works. I have some difficult understanding the vector quantization performed in the split_cb_search_shape_sign function. It's a bit hard to understand. Could you please explain me the algorithm step by step? I'm indagating the 5950 bps narrowband. Thank you. Gio.

Hi When we run the profiler these 3 functions take more than 8500 cycles. split_cb_search_shape_sign_N1() 22782 pitch_search_3tap() 19208 lpc_to_lsp() 16007 So can I configure these in a different way so it takes less cycles. I do not need very high sound quality Thanks for your time Warm Regards Saju > From: yates at ieee.org > To: saju_pa at hotmail.com > CC: speex-dev at xiph.org...

Saju Palayur <saju_pa at hotmail.com> writes: > Hi > > > > When we run the profiler these 3 functions take more than 8500 cycles. > > > > split_cb_search_shape_sign_N1() 22782 > pitch_search_3tap() 19208 > lpc_to_lsp() 16007 > > So can I configure these in a different way so it takes less cycles. I am not familiar with the code, so I can't say. I was trying to teach you how to optimize, not give you an optimization. --Randy > I do not need...

...lse_response 200 1800518 1800518 pitch_gain_search_3tap 199 4726604 1744952 open_loop_nbest_pitch 199 4204121 1641016 vq_nbest 800 1626252 1626252 lpc_to_lsp 50 1612650 1558133 nb_encode 50 27412845 1179551 fir_mem2 50 1097300 1097300 inner_prod 27469 1072299 1072299 split_cb_search_shape_sign_N1200 7310588 1007711 normalize16 597 303378 303378, A lower cost option would be to use a floating point 6713. I thought that a 300Mhz floating point would come out even or ahead in an encoding comparison. Instead of the 300M/32=9.3M cycles per channel that I need, I see 71.5M cycles p...

Hello! I'v downloaded speex lib 1.1.11.1. I am trying to port speex lib to Blackfin processor. I am using VisualDSP++ 4.0. If I am compiling source codes with using floating point everything ok. When I am compiling with FIXED_POINT defined everything's ok and code works about two times faster. But when I am defining BFIN_ASM I am getting several compiling errors in Blackfin assembler