similar to: OT Which Audio system to target?

Quoting Ralph Giles <giles@xiph.org>: > ALSA is the future, and has nice additions like latency feedback (not so > important for voice, but very important for audio/video sync). However, > ALSA will emulate the OSS device interface for many years to come, so > really it depends on your application. If your targets all support ALSA > (e.g. linux distributions released in the

Just a few weeks ago, I was thinking of writing a streaming source using libshout and portaudio. I was also considering LADSPA support, to do some minor post-processing before encoding. However, I'm currently developing on Mac OS X, and LADSPA's shared library plugin model has some issues here to be resolved. Another nice feature I have given a thought on is incorporating

Hello, Need some help using the speex_echo_cancel. I've read the documentation about the speex_echo_cancellation function: speex_echo_cancellation(echo_state, input_frame, echo_frame, output_frame); (in) echo_state => speex internal state. (in) input_frame => audio captured by mic. (in) echo_frame => the signal that was played in the speaker. (out) output_frame => the

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, I was wondering if anyone had any advice on an audio library that is better suited to be paired with Celt in terms of latency. I'm working on an application that I would like to have running on both windows/Linux systems. I started by using the OpenAL library but I have run into an issue when feeding OpenAL small mono sample sizes that

First let me introduce myself: Sr Computer Scientist 20+ yrs SW/HW development Audio Rookie < 60 days Intel based computer Soundblaster 128 PCI Linux Fedora Core 2 ALSA - Advanced Linux Sound Architecture ALSA provides the audio and MIDI functionality to the Linux operating system as of Fedora Core 2 and is the future of Linux (so I have been told) http://www.alsa-project.org/ I have read

>Also, 'portaudio' doesn't appear to produce a static library at all, so it doesn't appear to be possible to get a working splayer executable on Linux unless there is a 'hidden' way to get the portaudio distribution to build one. ("ldd: -lportaudio not found"). I believe splayer is only intended to be a Win32 executable. Note that it is in a directory

I am using 'portaudio' and 'speex' to implement a speech audio capture/playback. Preprocess works fine but not the echo canceller (associated with preprocessor). I have read 'testecho.c' but it didn't help me. What I am doing bad? This is my implementation: One thread to capture and playback, both are different functions called in different times directly from

Hi Guys, I'd reflect Vieri's question actually, because there must be a way of doing it? Maybe not with ICES, but maybe combines with JackIT? The reason for my interest is I work in a radio station in Spain, and because of the geographics where I am we have to relay around a lot. If there is a way of sending an incoming feed into ICES, and sending it out in various directions, would

Hi, I had downlaoded iaxclient-2.0.2 and complie project *\iaxclient-2.0.2\contrib\win\vs2005* ** It gives many83 fatal and file missing error of file missing Error 1 fatal error C1083: Cannot open include file: 'portaudio.h': No such file or directory d:\mohit\asterisk\iaxclient-2.0.2\iaxclient-2.0.2\lib\portmixer\px_win_wmme\px_win_wmme.c 40 Error 2 fatal error C1083: Cannot open

Hi. I'm new to icecast. I can see that IceS can source an input MIC, for example, from a sound card. Can it also output a playlist to a sound card (to the speakers)? If so, how? Thanks ____________________________________________________________________________________ We won't tell. Get more on shows you hate to love (and love to hate): Yahoo! TV's Guilty Pleasures list.

Hi, For the openSpeak project we use PortAudio V19 & speex. So if you want some code examples, you can look an pick in our SVN (its GPL). ATM we are having some problems with PortAudio v19 (it might still be buggy somehow, it seems not to support the 32-kHz sampling rate used by speex ultra-wide-band mode) so if you want something stable you'd better use v18. And of course, if you

Hi all, does anybody has ran echocancellation successfully on windows ? I have a problem playing audio there. If you play a wav file no mater how I play it after comparing the captured data with the original file there is always difference in the audio length (for 18 sec of audio there is more than 250 ms of difference). Which of course breaks echocancellation. I've tried playing the audio

I am making a lightweight opus audio player. This is my portaudio callback function. But i hear a stammering song when i try to play a .opus song file. Can anybody say what is wrong or provide me link to any code which can play opus file written in c/c++(light). I tried to see some open source(vlc opus play) but was unable to follow. int MyCallback(const void* input, void* output, unsigned

I have this problem. Ca you please help me : php -v PHP Warning: PHP Startup: Unable to load dynamic library 'twig.so' (tried: /usr/lib64/php/modules/twig.so (/usr/lib64/php/modules/twig.so: undefined symbol: zval_used_for_init), /usr/lib64/php/modules/twig.so.so (/usr/lib64/php/modules/twig.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 PHP

The current Asterisk 13 and master git branches have a new feature that will be included in 13.8.0: The ability to compile and run Asterisk with a bundled version of pjproject. ?? Why would you want to do this? Several reasons: - Predictability: When built with the ?bundled pjproject, you're always certain of the version you're running against, no matter where it's

Hello, I try to compile player_example.c from http://downloads.xiph.org/releases/theora/libtheora-1.1.1.zip in Visual Studio 2008 on Windows XP. I built and added to the project libogg-1.3.0, libtheora-1.1.1, libvorbis-1.3.2 (http://www.xiph.org/downloads/) and SDL-1.2.15 (http://www.libsdl.org/release/SDL-devel-1.2.15-VC.zip). When I compile player_example.c Visual Studio shows: fatal error

Speaking of portability and people more familiar with SDL: The reason we have two example players for theora is that monty wrote the original example around the OSS audio interface used on several free unix-like operating systems, which immediately excludes win32 and MacOS, even though it used SDL to display the frames. SDL also has audio support, and is quite widely ported. splayer replaces

The first error in CVS - fairly minor - is in the docs section: ---------------------------------------------------------------- make[1]: Entering directory `/tmp/temp/oggstuff/theora/doc' python txt2py.py spec.txt spec.py python txt2html.py spec.txt spec.html make[1]: *** No rule to make target `testspec.raw', needed by `all-am'. Stop.

Asterisk-people, Some of you may have heard that we were working on a simple, cross-platform IAX client library called "iaxclient". We've pretty much been "on vacation" with the project for a while, but recently have made some progress, and now have the library working across platforms, and a simple test client called "testcall", up and running on 3

Hi All, I try to compile the last version of iaxclient with the new build system, i also compiled speex 1.2b2 . When the makefile try to compile the sample code testcall I have the following mistales: gcc -I/d/Lib/iaxclient-2.0.1/portaudio-1.9/src/common -I/d/Lib/iaxclient-2.0.1/speex-1.2/include -o testcall.exe testcall.o ../../lib/.libs/libiaxclient.a