similar to: Command line cut-off

Hello, I do test runs of speex using speexenc -n [name].wav [name].spx The wav-files (6 different speech files) hereby are sampled at 44100Hz. Most interestingly, all Frames have SubModeID 5. I haven't tracked the Assignment of the SubModeID through the source code, so I just wanted to ask, if I can assume "speexenc -n" to use SubModeID 5 always? Ciao, Bj?rn -- You will

Hi, Jean-Marc Valin wrote: >> I haven't tracked the Assignment of the SubModeID through the source >> code, so I just wanted to ask, if I can assume "speexenc -n" to use >> SubModeID 5 always? > > Only if you never change the bit-rate. But speexenc -n was a dumb idea > in the first place... I know ... Thats why I downsampled the WAV-File to 8kHz (I got

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, Is it possible to adjust the level of the denoiser ? In an old beta, before you change the aggressiveness of the denoiser, it works very well with the noise of a car, a road etc... but not now. The AEC too works very well in a old beta, but now, I think there is a problem... I have tested it with the same sound card (WB 16000). In any case, your project is the best VOIP library in this

Bj?rn, I would be very interested in looking at your data and the R file. Actually, I think a lot of people would. You might want to post it on a website... CB -----Original Message----- From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of Bj?rn Thalheim Sent: Monday, September 11, 2006 4:43 AM To: speex-dev@xiph.org Subject: [Speex-dev] Distances in codebook

Hello, I recently measured the distances ndist[0][nb_subvect-1] which are used to make the decicion, which codebook entries are to be used in libspeex/cb_search.c (function split_cb_search_shape_sign). For that I took a couple of audio books (all german speech), downsampled the tracks to 8kHz and encoded them with "speexenc -n --bitrate 15000 ..." (I used svn revision 11825). Usually,

Hello, I noticed that for one specific Speaker, there are codebook entries in all codebooks, that "fit" the speaker. So if one had a look at a histogram of the used codebook line numbers for one speaker, the histograms would look very much the same for different speech samples (of course, the speech samples should be long enough, more than a minute of speech ought to be sufficient). I

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++) {

Hello, I would like to run a script over a speex file which determines, how long the speech contained in the speex file is. So I run through the ogg file, skip the first two ogg _pages_ (speex header and comment header, both contain IMHO only 1 ogg _packet_), and then count in any ogg page the number of the ogg _frames_ (which, unless I used -nframes while encoding, which I did not), and multiply

Hi, Jean-Marc Valin wrote: > How about this: the codebook search gives you the N best (in order) > combinations of entries for the current sub-frame. You can simply > compute a one-bit checksum on all the codebook entries and choose > which of the N-best to use based on that and the "message" you have. So you're suggesting, I can either write into the stream: -

Hi, Jean-Marc Valin wrote: > Well, you could change the order in the encoder as long as you reverse > it in the decoder as well. Ok, I see that in the split_cb_shape_sign_unquant function, that each coefficient is tied to it's position in the nb_subvect exc coefficients. Honestly, I have problems understanding what exactly the codebook search works like. If you have the time to to

Hello Jean-Marc and all, I recently had a talk with somebody about CELP. He said, there is this federal standard 1016 (4.8kbps) with a reference implementation of the Department of Defense (only on Sun, unfortunately, if I got this right). This one is noticed in the manual already. He also said, since there is this implementation of the DoD, nobody would voluntarily re-implement CELP. If I read

Hi, Jean-Marc Valin wrote: >> 1. What is the point in multiplying a codebook index with some number >> ant adding a loop variable to it as done in the exc unquant function. >> for (j=0;j<subvect_size;j++) >> exc[subvect_size*i+j]+=s*0.03125*shape_cb[ind[i]*subvect_size+j]; > > That's just how you represent a 2D array in C: the codebook has

Hello, I just checked out the latest version of speex and I want to compile it. The INSTALL file says that's easy: bjoern@deimos:~/studium/beleg/resources/svn/speex$ cat INSTALL Installing Speex is as easy as: % ./configure [--prefix=<install-path>] % make % make install Note that if you are using the code from SVN, you will need to run "autogen.sh" instead of

Hello kind developers, I am planning on creating a steganographic extension for speex/CELP. Since speex/CELP is lossy, there should be quite many bits that one can use for hiding data. I'm familiar with the principles of CELP (two filter loops, one for pitch, the other for formants, let the raw speech frame run through those filter loops, take residue signal, map it on a codebook entry,

Hello, playing a little around with speexenc/speexdec, I discovered that if I pass the "-n" or "-w" command line option to speexenc (version 1.1.10), I get a segmentation fault. Looking closely at the code, I found that the line: fprintf (stderr, "Warning: Trying to encode in %s at %d Hz. I'll do it but I suggest you try ultra-wideband instead\n",

Hello, Matthieu Poullet schrieb: > static float cheb_poly_eva(spx_word32_t *coef, float x, int m, char *stack) > { > int k; > float b0, b1, tmp; > int m2=m>>1; > > /* Initial conditions */ > b0=0; /* b_(m+1) */ > b1=0; /* b_(m+2) */ > > x*=2; > > /* Calculate the b_(k) */ > for(k=m2;k>0;k--) > { > tmp=b0;

Hello, Jean-Marc Valin schrieb: >>I am planning on creating a steganographic extension for speex/CELP. >>Since speex/CELP is lossy, there should be quite many bits that one >>can use for hiding data. > > Quite the opposite. Speex uses very few bits, so every bit you corrupt > is likely to be heard. You would need to use "fractions of bits" at a > time.

Hello Jean-Marc, Hello speex-dev-people, Jean-Marc Valin wrote: > All I can suggest is having a look at my simple client at: > http://people.xiph.org/~jm/speexclient/ Unfortunately, this does not compile: <<<<< snip >>>>> bjoern@phobos:~/beleg/speex/speexclient-0.0-dev$ ./configure checking for a BSD-compatible install... /usr/bin/install -c checking whether

I am having a problem with Lord of the Rings Online. The games load up but after a few minutes the game video locks up but the sound can still be heard and I can not seem to fix it. Here is the error message I get http://pastebin.com/LGDpeV4q I am running wine 1.3.21 on mint 11 64 bit KDE, compositing is off, graphics driver is nvidia 270.41.06, and 32 bit opengl drivers are installed. Does