search for: sipxtapi

Hello, I maintain audio processing part of code in sipXtapi -- open-source VoIP library. And when I engaged Speex library, I found that its Windows project files are not up to date and use strange settings. They miss several source files and use single-threaded static runtime libraries. I see no benefits of using static and moreover single-threaded librarie...

Hi: I'm using speex to perform echo cancellation in Windows. I'm aware of the problem about out of sync clocks in record and play sample rates in usual sound cards . In order to have an idea of how good is my echo cancelation working I would like to know if there is any #define thing i can pass to speex_echo_ctl to get the actual level of echo cancellation. If not, how can i extract that

...e speex as a project build dependency in their visual studio projects.. I think that may be where things get tricky. And Alex has told me that visual studio-built projects cannot link with mingw-win32-gcc produced DLLs... *sigh* -- I was trying to push for getting a mingw build of our VOIP stuff (sipxtapi), but then Alex brought that up, and since many of the users of sipxtapi are on windows and want to integrate with their own visual-studio-built projects, it was not possible... > > > Jean-Marc > > > Tom > > > > Jean-Marc Valin <jean-marc.valin at usherbroo...

Hi, I've been testing out the speex narrowband codec at low data rates (using linphone and Counterpath's Eyebeam). I'm finding that at data rates of ~25 kbps, the quality of the voice call is very poor. I know speex is supposed to work at much lower data rates (~2 kbps). Has anyone verified that speex will produce reasonable quality at low data rates? Are there any existing

If you remove the project files, I doubt it's going to make things easier for anyone. You'll probably just increase the number of questions as people struggle to compile using less common and less user-friendly methods, and someone is going to have to maintain that anyway. VS users want VS project files. Plenty of open-source projects provide them. It's not that hard.

I am trying to use the speex echo canceler and preprocessor with sipXtapi to develop a sip user agent. the sipXmedialib call flow graph uses 10ms frames and I am not sure what the implications are if I try to change this. The documentation seemed to indicate that a 20ms frame was recomended, but it didn't go into the consquences of using other frame sizes. We a...