similar to: Enquiry into .Opus Audio Quality

Hello, We (Google) have been experimenting with configuration and adjustments to CELT-only Opus that give good results for compressing ambisonic audio signals [1]. Based on our results so far, we would like to use Opus to encode spatial audio. We hope to make it easy/possible to use libopus with other common tools and software modules (ffmpeg/libav in particular). Based on my reading of the

On 06/01/2016 02:06 PM, Felicia Lim wrote: > That was my intention with refactoring out the subframe encoding and > repacketizing bit. Or do you mean I should merge the explicit check for > 120 ms frame and the existing checks for 40/60 ms wideband? What I mean is that this line in opus_encoder.c: if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY ||

Hi, a first set of results can be downloaded here <http://trac.tools.ietf.org/wg/codec/trac/wiki/TestingResults> http://trac.tools.ietf.org/wg/codec/trac/wiki/TestingResults More will be added soon. Thanks to Patrick Schreiner and Alfons Martin, who did the tests. With best regards, Christian Hoene Symonics GmbH Sand 13 72076 T?bingen Tel +49 7071 5681302

Hi Rhishi, PQevalaudio is very unreliable and buggy. I have compared to PEAQ and - as a result - now I am not using it anymore. With best regards, Christian Hoene Von: opus-bounces at xiph.org [mailto:opus-bounces at xiph.org] Im Auftrag von Rhishikesh Agashe Gesendet: Freitag, 4. Oktober 2013 12:35 An: opus at xiph.org Cc: Rasmi Mishra Betreff: [opus] ODG (Objective Difference

Christian, I will give 64kbit/s a try and post the figures. My own project is voice only and requires low bitrate so was hoping that it was just the way I was compiling and not an actual regression in speed for SILK. The raspberry PI is quite a cheap and handy reference platform though the ARM side is fairly underpowered but has a great GPU. It also has no audio in which is a pain for playing

Hi, I checked the ODG (Objective Difference Grade) scores for a few reference vectors using the PQEvalAudio Tool and found that some of them show ODG scores as high as -3.5 If we look at the range as described in the link below, it looks unacceptable. http://www-mmsp.ece.mcgill.ca/documents/Software/Packages/AFsp/PQevalAudio.html Am I missing something or are these scores valid? Thanks and

I have just started trying Opus with a view to using it in a project. I am interested in embedded hardware and tried it on the Raspberry Pi using the raspbian distro. The version of libopus in the repos is 0.9.14. I installed this and tried encoding 2 minutes of speech from a librevox recording. It managed this at a respectable pace for complexity 10: Skipping chunk of type "LIST",

I am working on creating a set of FLAC files for a ?decoder compliance test corpus? and am looking for examples of things that are part of the standard but not supported in the reference decoder. I am not looking for things missing from the reference encoder (such as variable block sizes). I seem to recall someone on this list (most likely lvqcl or Martijn van Beurden) mentioning something about

Hi Felica, yes, this is the only reason to have larger frames is on bandwidth limited links having a gross (physical) bit rates of 10kbps per channel. Decades ago I calculated with figure (for AMR-NB but the same holds for Opus). https://www.tkn.tu-berlin.de/fileadmin/fg112/Hard_Software_Components/Software/hoene_07_2004_paper.pdf Von: Felicia Lim [mailto:flim at google.com]

For the last couple months, Nuance has performed extensive testing on how the Opus codec performs in the speech recognition task. I'm hoping to publish a full report in the coming months, but until then all I have is a teaser. Opus performed within about 1% of the WER (Word Error Rate) of unencoded audio. This is compared to about 5% for Speex, which was the previous codec of choice. Well

I want to compute a new variable (newvar) based on the values of two other variables (t1freq, t2freq).The two variables (t1freq,t2freq) are contained in a dataframe - study1dat <- read.csv("c:\\study1rb.csv",header=T) . I gather this computation can be done using Apply and I have run the following example from the help menu ## Compute row and column sums for a matrix: x

Dear R-help, I am trying to estimate a Cox model with nested effects basing on the minimization of the overall AIC; I have two frailties terms, both gamma distributed. There is a error message (theta2 argument misses) and I don?t understand why. I would like to know what I have wrong. Thank you very much for your time. fitM7 <- coxph(Surv(lifespan,censured) ~ south + frailty(id,

Hi, I have read this on a forum: 'FLAC supports 24-bit audio fine. My understanding is that the FLAC format also handles 32-bit ints, but the reference encoder does not implement it, and FLAC has no support for float data. WavPack handles all integer bitdepths up to 32-bit and also 32-bit floats. Both codecs handle all sampling rates.' I was wondering if there are plans to support

Hi there, I am currently working on my dissertation which is about testing the martingale hypothesis in the stock market using a methodology involving a range of variance ratio tests and multiple variance ratio tests. I contacted the author of a reference paper and I was told that the tests can be conducted using R programming language. Although I have gone through the theoretical background of

I have downloaded samba-2.2.2-sparc-solaris-2.8.pkg from your site and would like to install it to my unix server sun solaris 5.8. I am battling to use the pkgadd to install this package. Can you please help me in this regard as I have failed to find samba/docs/htmldocs/UNIX_INSTALL which is suppose to be instructions on how to install it on unix sun solaris. Thanking you in advance. Regards,

This is a minor question, but is there any difference between the two objects fred <- structure(1:10, dim = c(2,5)) and fred <- structure(1:10, .Dim = c(2,5)) Should I be using one rather than the other? Thanks, Jonathan. Jonathan Rougier Science Laboratories Department of Mathematical Sciences South Road University of Durham Durham DH1 3LE

Reid Spencer wrote: >Yes, that's right! > >In fact, shortly the process of doing that will get easier with the >llvmc (compiler driver) tool that I'm working on. You write your >compiler to generate either bytecode or LLVM assembly and a > > Does that mean the front end must decide between emiting bytecode for interpretting/JITing and LLVM assembly for native

On Thu, Aug 19, 2004 at 10:35:02AM +1200, Peter Ashford wrote: > Does that mean the front end must decide between emiting bytecode for > interpretting/JITing and LLVM assembly for native compilation? You > can't emit the one kind of output for either end target (interpretted > bytecode or native compilation)? Not at all, there's only one version of LLVM IR, but it can

Misha Brukman wrote: >On Thu, Aug 19, 2004 at 10:35:02AM +1200, Peter Ashford wrote: > > >>Does that mean the front end must decide between emiting bytecode for >>interpretting/JITing and LLVM assembly for native compilation? You >>can't emit the one kind of output for either end target (interpretted >>bytecode or native compilation)? >>

I just joined the LLVM Dev list. What is the status of the PTX BE? thank, Vince Schuster