similar to: Speex and Java ...

I am considering using OGG for sending mono files across the net. OGG sounds great and I like the philosophy. But when I compress a mono file using OGGDROP or OGGENC Beta4, I can only get compression ratios of about 3:1. If I take the original mono file and convert it to stereo, then encode it, I can get a compression ratio of about 10:1. So the final encoded file for stereo is actually smaller

> > >> You might like to write a JNI Wrapper. > > > That's what I'm doing now to get things rolling but I > was talking about a pure java solution. So is there any such > project underway? I wrote a JNI wrapper for speex a few months ago, it's not finished but it does work and i don't think it would need much work to be update it to speex 1.0 and

Hi, just to let you know that unstable version 1.1.1 is out. It includes the latest fixed-point changes which can be enabled with --enable-fixed-point (as configure option) or -DENABLE_FIXED_POINT (for win32). The port is not complete, but most of the floating-point operations have been converted. Please give it a try and report any difference with previous versions (both for float and

Hello! The question is: "Does Speex support multiple channels?" Speex is reported to encode only mono and stereo signals. But I found 'nb_channel' defined in <speex_header.h> among the Public Attributes. Does this mean that it is also possible to store more than two channels in one single speex-file? Maybe it will be possible in the next future...? TIA -- Mch --- >8

> Am I right with the assumption, that currently you have to enable > processor specific optimizations with compile/configure options? > > How difficult would it be to add support for runtime CPU detection? > Is this a feature you might consider adding? Pretty complicated because of some annoying decisions taken by the gcc team. The problem is that gcc won't let you use

This portion of the RFC is gramatically incorrect and confusing: The RTP payload MUST be padded to provide an integer number of octets as the payload length. These padding bits MUST be all zero. This padding is only required for the last frame in the packet, and only to ensure the packet contents ends on an octet boundary. <p> -- Ben Greear <greearb@candelatech.com>

Hmm, what these instructions do? (I know nothing about ARMs; I have some knowlege about x86 assemblers and programming). Cant we use pure standard C++ or Java? Does Speex work with fixedpoint math? (As far as I know Java on 6600 has no builtin floatingpoint, there is emulation class somewhere on the net, but it is probably painfully slow.) I do not know if this processor has builtin

Hi everyone, I've just released version 1.1.4. This includes some code cleanup and improvements to the fixed-point port and SSE optimizations. All the SSE code has been converted to intrinsics and some new functions have been implemented with SSE. Overall, the speed has been increased by up to ~30% with SSE. Jean-Marc -- Jean-Marc Valin, M.Sc.A., ing. jr. LABORIUS

> Is it a problem if all the files are compiled with -march=pentium3 > ? The patch that we sent in already detects in the configure.in script > which system you are on and sets a define correctly, i.e. _USE_SSE. Well, if what you want is auto-detection, turning on -march=pentium3 means that the code will crash on anything lower than a pentium3. Not really useful. Of course,

Le mar 18/11/2003 à 17:39, Allen Drennan a écrit : > Speaking of video conferencing in conjunction with Speex, we are > currently beta testing a solution we developed that offers multi-point, > multi-party video and audio using the Speex engine for voice. > > http://www.wiredred.com/downloads/ecsetup.exe > > The fair and good audio settings are Speex narrowband, high quality

Hi, I am working with libspeex api. I would like compare the size of speex file encoded with libspeex and the size of speex file encoded with speexenc. For example, I encode with speexenc (narrowband, quality 1) a wav file of 1.43 MB (17 seconds) output a spx file weight 21KB, for other hand I encode with libspeex the same wav file with same characteristics in arm processor, pocket pc and the

> Date: Fri, 05 Dec 2003 13:22:53 -0500 > From: Jean-Marc Valin <Jean-Marc.Valin@USherbrooke.ca> > > I think I see what you mean, though I haven't been able to listen to > your wma file (not everyone has a wma decoder). The problem probably > only lies in the VBR tuning for wideband which hasn't received much work > yet. One way to check that is to encode in

Speex: I am creating a closed-source projec that implements the Speex library into the application. According to GPL, as freedom in code, my project has to be open-source to use code from open-source project; Speex. Basically, all I ask is special permission into using Speex into a closed-source application. Not to forget, you will, of couse, be credited in the About box. Reply if your

Hello I'm working about audio and video codecs. I'm making a research about the state-of-the-art in coding technologies. My question is about the speex codec 1.0. I would like to know the name of the algorithms that it uses.(LPC,CELP..). It uses more or less the same algorithm for narrowband and wideband? Finally i would like to ask about future codec developement projects. Thanks

Hello ! I would like to ask you if there is a possibility for me, as a programmer, to use a library (i.e. libspeex for Windows) in a commercial program. Thanks a lot ! Adrian __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage:

Is there a registered ACM format tag for Speex encoded audio? I am in charge of an application which can store Speex audio in a stream in an AVI file and I would like to use the official format tag if there is one so that some day it will be playable using some forthcoming ACM codec. Thanks, Keith ________________________________________________ Keith Looney Senior Software Engineer On2

I just did: $ speexdec foo.wav foo.wav.wav Segmentation fault There should probably be some sanity check in speexdec. /Ole --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is

Speex 1.0 - in file sb_celp.c line 218 change speex_decoder_ctl(...) to speex_encoder_ctl(...): void *sb_encoder_init(SpeexMode *m) { . . . --> speex_decoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate); // Replace <-- speex_encoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate); st->sampling_rate*=2; return st; } --

Hey, this is my first post... i'm new with Speex and i'm interested in the theory behind this compressino scheme... has anyone of you worked with the theory of this codec? -----BEGIN GEEK CODE BLOCK----- Version 3.1 GED/J d-- s:++>: a-- C++(++++) ULU++ P+ L++ E---- W+(-) N+++ o+ K+++ w--- GE/CS/MU d-- s:- a-- C++(++) SL P L+ E-- W++(+) N K+ w++ o? M V-- PS+ PE Y+ PGP !t 5 X++ R tv+ b++

On Wed, 21 Jan 2004, Aron Rosenberg wrote: > A few things - > > 1. I think that run-time processor detection should not be included in Speex. That approach only works for environments where people are compiling their own code for their own use on their own machine. Some people want to ship binaries. To begin with, not everyone has a compiler installed on their machine and even among