similar to: adding celt support to netjack some questions.

Hi, For those interested in reading more on CELT, here's another paper that just got accepted. That one focuses on the low-complexity mode and is based on 0.5.1. J.-M. Valin, T. B. Terriberry, G. Maxwell, A Full-Bandwidth Audio Codec with Low Complexity and Very Low Delay, Accepted for EUSIPCO 2009. http://people.xiph.org/~jm/papers/celt_eusipco2009.pdf Cheers, Jean-Marc

Hi, I'm using CELT encoder/decoder from several threads (but *different* encoder/decoder objects from the different threads) and I have various crash or "abort" (like ec_byte_write_at_end calling "celt_fatal("byte buffer collision");" It there any threading issues to known when using CELT? Thanks Stephane Letz

As some of you may know, I'm going to be presenting CELT at the upcoming linux.conf.au conference in January. See http://linux.conf.au/programme/schedule/view_talk/187?day=thursday for details about the talk. I would like to include some references to real world applications, demos, etc., where your are already using (or planning to use) CELT. If you want me to mention your project in front of

On Tue, 14 Oct 2008, Jean-Marc Valin wrote: > Diana Cionoiu a ?crit : >> Hi Jean-Marc, >> >> 1. Why CELT versus Speex? > > There's nearly no overlap between Speex and CELT. CELT is much higher > quality, very low latency, and of course, higher bit-rate than Speex. So > it really depends on the application. > >> 2. What's the RTP payload for CELT,

Hi, folks, I have an old CELT thing that I'm updating to Opus and I'm trying to get individual pieces upgraded.  My first task is upgrading the CELT encoder to Opus. The old CELT thing treated the L and R channels as independent mono streams, encoded them somehow with CELT to form one bitstream, sent one bitstream across, and then unpacked it manually after the decoder. Can I do that

Hi everyone, I'm pleased to announce version 0.6.0 of CELT, with many quality improvements. This includes better stereo coupling, better handling of transients, and better handling of highly tonal signals. In addition, packet loss robustness has been improved through the optional use of independent (intra) frames. CELT now supports a larger dynamic range, suitable for encoding 24-bit audio

Hi Jean-Marc, 1. Why CELT versus Speex? 2. What's the RTP payload for CELT, so we can add it in Yate? 3. What are the SDP declaration parameters? Diana Jean-Marc Valin wrote: > Hi everyone, > > I'm happy to announce CELT version 0.5.0. This release includes > simplifications to the bit allocation code and includes a new > low-complexity mode that can be enabled (without

[I'm primarily intending this message for the developers of netjack, but it may be of interest to other CELT users] Greetings. Jean-marc was concerned that CELT application developers may incorrectly send in non-scaled integers (like ?32767) into the float interface of CELT and thus unintentionally create software which was incompatible with everyone else (and particularly, very incompatible

Hi all, I am the developer of the llcon software (llcon.sf.net) which is a software making it possible for musicians to play in real-time over the internet. Up to now I have used ADPCM or no audio coding. Gregory Maxwell was pointing me to the great CELT project. Using CELT has the advantage to be able to use higher sample rates, getting lower code rate and better error concealment. I have

Hi all I have spent the last three days evaluating CELT on our supported platforms. I found a bug in quant_bands.c, that due to processor/compilation differences did not cause an issue on x86 platforms, but is a problem on the MIPS processor embedded devices. When decoding on the MIPS devices, there was a lot of noise added during the decoding, the noise is mainly in the 15 khz to 21 khz range.

Is there are description somewhere of how CELT packs into the .oga file? Trying to reverse engineer it from the intertwined celtenc code is suboptimal. -a

# make make all-recursive make[1]: Entering directory `/tmp/celt-0.7.0' Making all in libcelt make[2]: Entering directory `/tmp/celt-0.7.0/libcelt' /bin/sh ../libtool --tag=CC --mode=compile gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I.. -s -O3 -march=i686 -fvisibility=hidden -W -Wstrict-prototypes -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wno-parentheses

Hi everyone, I've recently been making various changes to the way the modes work and the supported frame size. On new feature that may be of interest to some is that CELT should soon support changing the frame size dynamically within a stream. By that I mean varying the amount of audio (in time) transmitted at once, not the compressed size -- which has always been variable. That would

Hi everyone, I'm happy to announce CELT version 0.5.0. This release includes simplifications to the bit allocation code and includes a new low-complexity mode that can be enabled (without breaking compatibility) on the encoder side. There are several other optimisations and bug fixes included. The API has also been slightly modified, so code using CELT will have to be updated (only minor

Hi everyone, I'm happy to announce CELT version 0.5.0. This release includes simplifications to the bit allocation code and includes a new low-complexity mode that can be enabled (without breaking compatibility) on the encoder side. There are several other optimisations and bug fixes included. The API has also been slightly modified, so code using CELT will have to be updated (only minor

Good Morning; Iam asking whether any one have knowledge about is it possiple to incorporate a psycoacoustic model?(specifically?I mean ?MPEG-1 psychoacoustic model 1) into the CELT codec(any version even older versions of the coder,?no matter) Iam using version 0.3.2. Kind Regards; Osama. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello all, This is slightly off-topic, but should be of interest to some people on this list. I just released version 0.3.2 of the CELT ultra low-delay audio codec (http://www.celt-codec.org/). CELT is designed to encode high quality speech and music with less than 10 ms delay and at rates starting from around 32 kbit/s. This version is "special" in that it is the basis for some

hey great job with the celt codec. im very eager to use it. im just wondering how? there is little to no documentation on how to use the celt codec. is there anyway to encode an icecast stream using the celt codec? or is there any software with celt support built in? thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL:

Dear CELT Developers, I wrote a proposal on how to integrate CELT into Digital Radio Mondiale (DRM+). The CELT codec has been integrated in the Spark transmission software and SoDiRa receiver software. Please download the proposal here: http://www.drm-sender.de/celt_in_drm.pdf Suggestions and comments are welcome! A live on-air DRM+ transmission using CELT (v.0.7.1) for audio encoding was

Hello, I am interested in using the CELT codec for an embedded project around the DSP C55x family from TI. Is this someone has already done? Which is necessary to do that, which compiler, is there a specific configuration ? Is it necessary to have an Operating system to run the CELT codec ? Is it possible to instantiate several times the CELT codec ? Thank you in