similar to: Speex: getting started

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

Dear all, I am interested to evaluate reclassification using net reclassification improvement and Integrated Discrimination Index IDI after survival analysis (Cox proportional hazards using stcox). I search a R package or a R code that specifically addresses the categorical NRI for time-to-event data in the presence of censored observation and, if possible, at different follow-up time points. I

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.

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear Celts, I've become intrigued by the problem of spherical quantizers, so I decided to see if I could come up with something better than PVQ. What I wound up writing is something I call an "octagon quantizer. In two dimensions, PVQ uses a "diamond" (square) shape. An octagon code (OVQ) uses an octagon, which is a much better

Hi, I have to do a comparison among three groups of genetic transcription levels. I have a situation like this: group 0: baseline group 1: first treatment group 2: second treatment In the first group, I have only 2 samples, in the second one 4 samples and in the last group I have 10 samples. I would check if the trnascription of a gene increases from the baseline situation to the fist treatment

On Sat, Apr 25, 2020 at 1:23 PM Joerg Roedel <joro at 8bytes.org> wrote: > > On Sat, Apr 25, 2020 at 12:47:31PM -0700, Andy Lutomirski wrote: > > I assume the race you mean is: > > > > #VC > > Immediate NMI before IST gets shifted > > #VC > > > > Kaboom. > > > > How are you dealing with this? Ultimately, I think that NMI will need

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

I have been transcoding a group of panoramic videos using ffmpeg2theora 0.26 i just completed transcoding Naples Cycle HDV.vwmovie the resulting video has some strange colors in it the source video can be got from http://www.eyesee360.com/videowarp/examples/ the resulting images and the theora file can be download from http://www.lightningridgecommunity.com/images/ tom at

Here's the problem: > 2) Encoding with rate control as in single pass "Bitrate > control" will not > lead to better quality than fixed quant (with the right value > of the fixed > quant). Ratecontrol doens't know anything about "quality". It > will try to > reach more-or-less CBR. > > But somehow this is not a fair comparison, because

------------------------------------------------------------------------------------------------------------------- 2016 IEEE TCSC Award for Excellence in Scalable Computing Call for Nominations ------------------------------------------------------------------------------------------------------------------- The IEEE TCSC Award for Excellence in Scalable Computing is awarded for significant and

------------------------------------------------------------------------------------------------------------------- 2016 IEEE TCSC Award for Excellence in Scalable Computing Call for Nominations ------------------------------------------------------------------------------------------------------------------- The IEEE TCSC Award for Excellence in Scalable Computing is awarded for significant and

Dear All, Floor 1 decoder uses FLOOR_fromdB_LOOKUP table. The purpose of this table is not clear to me. It is also not explicitly explained in the vorbis specification. As i have understood is that it is used to dequantise the "Y" values which are decoded from the bitstream during curve synthesis. Is this correct ? If so why does the table have only 256 elements ? This would imply

On Tue, Jun 23, 2020 at 01:50:14PM +0200, Peter Zijlstra wrote: > If SNP is the sole reason #VC needs to be IST, then I'd strongly urge > you to only make it IST if/when you try and make SNP happen, not before. It is not the only reason, when ES guests gain debug register support then #VC also needs to be IST, because #DB can be promoted into #VC then, and as #DB is IST for a reason,

Subject: Re: [R] Problems with R Commander version 1.8-3 Many thanks for your kindly replay. I just use a At this time I use an earlier version of the package. I try to install the Rcmdr from R-Forge. Many tanks again Message: 21 Date: Wed, 28 Mar 2012 08:04:09 -0400 From: "John Fox" <jfox at mcmaster.ca> To: <petretta at unina.it> Cc: r-help at r-project.org

Hi. I have been talking with Psytel MPEG-4 AAC developer (www.psytel.com) about various compression formats, and to make it short he said that one of the main drawbacks of Vorbis is its vector quantization - it introduces more error then other quantization methods (like non-uniform scalar quantization, if I got it right), probably used in AAC and other similar codecs. I know vector quantization

On Mon, Apr 27, 2020 at 10:37:41AM -0700, Andy Lutomirski wrote: > I have a somewhat serious question: should we use IST for #VC at all? > As I understand it, Rome and Naples make it mandatory for hypervisors > to intercept #DB, which means that, due to the MOV SS mess, it's sort > of mandatory to use IST for #VC. But Milan fixes the #DB issue, so, > if we're running under

Comments? ---------------------------------------- "Mark Taylor" <mt@sulaco.org> wrote: [...] > This is related to one minor objection I have to vector quantization > based codecs like Vorbis and the MPEG4 VQ codec: they do not compute > the quantization noise during the encoding process. The choice of > codebooks (use a big codebook: low quantization noise, use a

Hi all, I'd like to quantize a variable to map it into a limited set of integers for use with a colormap. "image" and filled.contour" do this mapping inside somewhere, but I'd like to choose the colors for plotting a set of polygons. Is there a pre-existing function that does something like this well? i.e., is capable of using 'breaks'?

(Disclaimer: this is not an LPC vs. LSP question) After looking at the Vorbis code I was wondering why you were using LSP to quantize the spectral envelope instead of simply quantizing the cepstrum (DCT(log(envelope))) or modified cepstrum (DCT(envelope.^alpha)). To me it seems like when the information is already in the frequency domain, there's no need to go back to LPC. Also, I think a DCT

I have some data measured with a coarsely-quantized clock. Let's say the real data are q<- sort(rexp(100,.5)) The quantized form is floor(q), so a simple quantile plot of one against the other can be calculated using: plot(q,type="l"); points(floor(q),col="red") which of course shows the characteristic stair-step. I would like to smooth the quantized