search for: vq_nbest_sign

Hi there, here is a little bug report: # ./configure --with-gnu-ld --enable-sse # make [...] vq.c:99: error: conflicting types for `vq_nbest' vq.h:44: error: previous declaration of `vq_nbest' vq.c:133: error: conflicting types for `vq_nbest_sign' vq.h:46: error: previous declaration of `vq_nbest_sign' The --enable-sse option took this bug to the surface. The header file is prepared for the sse optimization but the source isn't. Best Regards Lars

I have a patch for libspeex, which optimises some of the loops in vq_nbest and vq_nbest_sign that speeds up encoding - my results: test file: 10s wav file at 16000 Hz, mono encoding with wideband --quality 3, --comp 3 machine: PIII-900Mhz, 256MB RAM before: 2.78s after: 2.38s I'm still trying to grasp the code (I'm just a coder, no background in sound processing), and just optim...

...can OVERRIDE_INNER_PRODUCT_SINGLE. Talking about performance (still using generic version with VDSP compiler): 1. I got a pretty good boost by using a scratch buffer in SRAM. 2. Wideband Encode+Decode takes 79.1 + 7.2 MIPS on my BF536 400/133 Mhz 3. Profiler says: vq_nbest 33.05% vq_nbest_sign 11.12% filter_mem16 4.14% inner_prod 4.07% iir_mem16 2.75% qmf_synth 2.32% lsp_to_lpc 2.32% open_loop_nbest_pitch 1.41% compute_impulse_response 1.37% qmf_decomp 1.28% lpc_to_lsp...

...td_mode_request_handler speex_std_low_mode_request_handler speex_std_high_mode_request_handler speex_std_vbr_request_handler speex_std_enh_request_handler speex_std_vbr_quality_request_handler speex_std_char_handler speex_default_user_handler In vbr.c: vbr_analysis vbr_destroy In vq.c: vq_index vq_nbest_sign -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20070806/81ab5672/attachment.htm

Le sam 14/12/2002 à 01:03, Bernard Blackham a écrit : > I have a patch for libspeex, which optimises some of the loops in > vq_nbest and vq_nbest_sign that speeds up encoding - my results: Thanks for the patch. I applied it and it give me up to 15% in speed. Doesn't seem to change the results, which is a good thing (though you originally forgot a "used=0" in vq_nbest_sign). I'll check a thing or two and I'll apply to CVS....

...ler > speex_std_vbr_request_handler > speex_std_enh_request_handler > speex_std_vbr_quality_request_handler > speex_std_char_handler > speex_default_user_handler No need for that. > In vbr.c: > vbr_analysis > vbr_destroy No need for that. > In vq.c: > vq_index > vq_nbest_sign No need for those. So yes, there's a lot of stuff you can remove. You can also get rid of the stereo preprocess, mdf files. You can also remove the VBR part of the narrowband encoder and the vocoder part of the decoder. As I was saying, there are very few codepaths that are only taken someti...

...std_high_mode_request_handler > speex_std_vbr_request_handler > speex_std_enh_request_handler > speex_std_vbr_quality_request_handler > speex_std_char_handler > speex_default_user_handler > > In vbr.c: > vbr_analysis > vbr_destroy > > In vq.c: > vq_index > vq_nbest_sign > > > > > > ------------------------------------------------------------------------ > > _______________________________________________ > Speex-dev mailing list > Speex-dev@xiph.org > http://lists.xiph.org/mailman/listinfo/speex-dev -------------- next pa...

...I know that the CPU requirements for complexity 10 is about 5 times higher than for complexity 1. I have verified it while performing my experiments. Complexity is being actively used in the following functions in the libspeex library for Win32: File: cb_search.c split_cb_search_shape_sign -----vq_nbest_sign -----vq_nbest File: ltp.c Function: pitch_search_3tap -----open_loop_nbest_pitch 1) What is "Complexity" used for? What is its role in the codebook search algorithm besides allocating the stack sizes? 2) How does "Complexity" effect the search through the codebook to encode...

I would like to use speex_preprocess() for voice activity detection. I read the comments in speex_preprocess.h and the relevant paragraphs in the Speex manual. Is there anywhere I can find more information on how to use this function? Thanks for your help, Steve _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today

...> speex_std_high_mode_request_handler speex_std_vbr_request_handler >> speex_std_enh_request_handler speex_std_vbr_quality_request_handler >> speex_std_char_handler speex_default_user_handler >> >> In vbr.c: vbr_analysis vbr_destroy >> >> In vq.c: vq_index vq_nbest_sign >> >> >> >> >> >> ------------------------------------------------------------------------ >> >> >> _______________________________________________ Speex-dev mailing >> list Speex-dev@xiph.org >> http://lists.xiph.org/mailman...

On Sat, Dec 14, 2002 at 01:46:19AM -0500, Jean-Marc Valin wrote: > Thanks for the patch. I applied it and it give me up to 15% in speed. > Doesn't seem to change the results, which is a good thing (though you > originally forgot a "used=0" in vq_nbest_sign). I'll check a thing or > two and I'll apply to CVS. D'oh. My carelessness, sorry! :) > Strange... on my PIII, encoding a 10 sec file with --comp 3 --quality 3 > takes less than a second (your patch is still a bit faster). How did you > get these timings? Using zsh's...

...roy T speex_encoder_init @@ -144,17 +60,6 @@ T speex_stereo_state_destroy T speex_stereo_state_init T speex_stereo_state_reset -T split_cb_search_shape_sign -T split_cb_shape_sign_unquant -T _spx_autocorr -T _spx_lpc -T syn_percep_zero16 -T vbr_analysis -T vbr_destroy -T vbr_init -T vq_nbest -T vq_nbest_sign -T wb_mode_query U acosf U calloc U exit -------------- next part -------------- --- libspeexdsp.old 2008-03-29 03:05:30.000000000 +0100 +++ libspeexdsp.new 2008-03-29 03:00:36.000000000 +0100 @@ -1,13 +1,6 @@ A __bss_start A _edata A _end -T filterbank_compute_bank -T filterbank_compute_bank...

...roy T speex_encoder_init @@ -144,17 +60,6 @@ T speex_stereo_state_destroy T speex_stereo_state_init T speex_stereo_state_reset -T split_cb_search_shape_sign -T split_cb_shape_sign_unquant -T _spx_autocorr -T _spx_lpc -T syn_percep_zero16 -T vbr_analysis -T vbr_destroy -T vbr_init -T vq_nbest -T vq_nbest_sign -T wb_mode_query U acosf U calloc U exit -------------- next part -------------- --- libspeexdsp.old 2008-03-29 03:05:30.000000000 +0100 +++ libspeexdsp.new 2008-03-29 03:00:36.000000000 +0100 @@ -1,13 +1,6 @@ A __bss_start A _edata A _end -T filterbank_compute_bank -T filterbank_compute_bank...