similar to: probably heap corruption detection

Hi, I am using speex 1.2beta2 on a 24bit DSP that has a severe program and data space limitations. I am only interested in the speex decoder for 11kbps narrowband implementation. I am using the following parameters and structures 160, /*frameSize*/ 40, /*subframeSize*/ 10, /*lpcSize*/ 17, /*pitchStart*/ 144, /*pitchEnd*/ /* 11 kbps medium bit-rate

Hi, Jean-Marc Valin wrote: > Not sure I understand your question. Change the order of what within what? In cb_search, we iterate nb_subvect times over a codebook, finding nb_subvect codebook entries to quantize the excitation signal. After finding these nb_subvect codebook entries, they're written into the stream: /*save indices*/ for (i=0;i<nb_subvect;i++) {

I've never tried Speex on a 24-bit DSP, but I would suggest actually leaving the code (nearly) as-is. The scaling factors actually should not change because I'm using integer multiplications, not fractional multiplications. So what should happen is that the top 8 bits or 24-bit values and the top 16-bit of 48-bit values will be unused (filled with sign bits). There may be a few cases where

I'm getting confused, what's the problem exactly? The AGC doesn't remove the DC or it adds one? Jean-Marc Aymeric Moizard a ?crit : > Hi Jean-Marc & all, > > I'm currently working on a wav file with very low volume. > This wav also contains a DC component. > > Using testdenoise with modification (AGC turned on with > 20000.0 value) I'm able to

Hi We are working on a speaker phone system using PJSIP and Speex Speech processing API on an ARM platform. Currently we have spent about a month on getting the AEC to work properly and we have worked through the most common causes of problems (such as clock drift, synchronization problems and non-linearity's in echo path). Now we achieve ERLE of about 17 dB which tells me that the AEC is

Hi, Speex-dev: ? I have some problems about complie speex on pxa-270. I use libspeex.so.1.4.0 at my platform after complie speex and all function is ok, but the cpu loading is 99%. How can i do to reduce the cpu loading? ? note: 1. My Platform are os: linux 2.6.19 , cc: gcc-2.95.3 , cpu: pxa-270, ogg: libogg-1.1.3, speex: speex-1.2beta3 2. I configure speex by the follow command. ./configure

Dear Valin, Please, can you explain me the mean of the routines' parameters: 1. void vq_nbest(); 2. static void compute_weighted_codebook(); 3. static inline void target_update(); 4. void split_cb_search_shape_sign(); 5. void split_cb_shape_sign_unquant(); 6. void noise_codebook_quant(); 7. void noise_codebook_unquant(); and what they do briefly??? It's very difficult understand a

> No, the 1.2beta1 preprocessor works rather well. I have a different opinion, but glad you like it anyway :-) > In fact, I very much welcomed the change that the preprocessor in > 1.2beta1 now starts out with the assumption of there being no speech, > and only activating and adapting AGC when where there is new activity > detected above that. As a result, with 1.2beta1, there is

Hi Jean-Marc, Alfred and Greg, Are you receiving the mails from IETF about draft-ietf-avt-rtp-speex The mails are not coming from AVT mailing list, but I think we are all 3 part of a minimal list (draft-ietf-avt-rtp-speex at tools.ietf.org) dedicated to latest discussion about the draft. I have answered some questions, but there are small changes and adaptation still required to the ietf

In a "normal" frame that doesn't have in-band signalling (which nobody seems to use anyway), the frame starts with the narrowband information. If the frame is in wideband, then this will be followed by a bit of wideband information that starts with a bit set to 1 (narrowband starts with a bit set to 0). Have a look at what the Speex decoder does. You may actually want to have similar

On Mon, 6 Nov 2006, Jean-Marc Valin wrote: > That's quite a strange problem. Considering that Speex doesn't have any > "init code" (stuff that executes when it's loaded), there's no way this > could be a bug in Speex. True. > I see two likely possibilities (plus lots of > unlikely): > 1) A bug in your code. Linking with Speex pushes your code to a

Hi Jean-Marc, yes, problem exists in narrowband-mode, too. I already twiddled with max_gain, but did not have real success. I changed line 337 of ltp.c (function pitch_gain_search_3tap_vq) if (sum>best_sum && gain_sum<=max_gain) { to if (sum>best_sum && gain_sum<max_gain) { -- that stabilizes speex for 2000 Hz and 2200 Hz input on quality setting 7 (23800

If you want to test the AEC, I recommend using the svn version of Speex. Jean-Marc Aymeric Moizard a ?crit : > > I finally solved my problem: > > My **static** speex library is compiled with: > -D_LIB > > While I should compile it with: > -D_USRDLL > > I'm not able to understand completely why: anyway, it > now can be compiled without breaking anything.

On Wed, 6 Dec 2006, lianghu xu wrote: > Hi Jean-Marc, > > I remember you said that the SDP tells the mode information. Right. But a decoder like speex can always be configured from information contained in the incoming stream. That makes your application more interroperable. Aymeric MOIZARD / ANTISIP amsip - http://www.antisip.com osip2 - http://www.osip.org eXosip2 -

Hello, just to make sure I haven't gotten anything wrong: In cb_search.c (function split_cb_search_shape_sign) after all that searching nb_subvect CB entries are being written into the stream. These are all taken from the same codebook. If I wanted to, I could just change their order, couldn't I? Because important is only the linear combination of them all together, which I keep

Hello, The denoiser was good with a car noise or a raod noise before the r11739. But for some situation, the actual version is perfect. That's why I think that if we can adjust the agressivity of the denoiser, we can respond to all of the situations. Maybe two parameters should be enough : high or low. For the AEC, I have to test with older versions because it's another person that

On Sat, Nov 1, 2008 at 2:40 PM, Aymeric Moizard <jack at atosc.org> wrote: > The vcproj file provided for 2005 in 1.2rc1 does not include > _USE_SSE when compiling the project for "Release_SSE". This > define is only used when compiling under "Release_Dynamic_SSE". > > Is this just because the vcproj file is wrong or is it because > this #define must not

Sorry, got the subject wrong in the last mail. My e-mail client is playing games with me...

Dear Sir/Miss: I'm very sorry to bother you,but I've found a bug in the Speex,Version 1.2beta1,and also I've have some questions. I'm deeply impressed by the work you have done in the coding and decoding of speech signal.But when using speex,I encoutered a bug,that is when in 32K mode,the window size is still 200 samples,but not 400 samples,the bug will bring the problem of

Aymeric Moizard a ?crit : > > I'm working on the echo canceller with the SVN, with Windows Mobile 5 > PocketPC. > > Obviously, I can't make it run correctly. What happens/doesn't happen? > My question: If I use the SPEEX_PREPROCESS_SET_ECHO_STATE, I have > changes in the sound: noise seems to be removed. Noise should be removed even without