Hey, this sounds interesting! We've built loads of PortAudio  
interfaces, including for VisualWorks. It's all pretty easy, but you  
have to manage the timing of the audio call-backs and Smalltalk  
semaphores carefully to avoid dropping buffers. There's cross- 
platform VW wrapper code (using the DLLCC Smalltalk-to-C API) in the  
Siren7 release (http://www.create.ucsb.edu/Siren/Siren7.2.tgz).

stp

--
   Stephen Travis Pope -- http://create.ucsb.edu/~stp
   Dept. of Music and Grad. Program in Media Arts and Technology
   University of California, Santa Barbara


Begin forwarded message:

> From: Brad Fuller <brad at sonaural.com>
> Date: November 1, 2005 10:43:33 AM PST
> To: Squeak List <squeak-dev at lists.squeakfoundation.org>,  
> squeakaudio at create.ucsb.edu
> Subject: [SqueakAudio] PortAudio Port Help Request
>
> Anyone interested in working with me on porting PortAudio (http:// 
> portaudio.com/) to Squeak? I've never built a primitive before  
> although I've gotten the Linux 3.8 VM to build using VMMaker  
> (whew.) So, if you have experience in this area, that would be an  
> added bonus!
>
> I want to start on Linux first using v19 preferably with the JACK  
> (http://jackit.sourceforge.net/) interface,. But ALSA (http://alsa- 
> project.org/) would be fine for now. Linux primarily because of the  
> free C tools - I have no C tools for Windows or Mac. But, if  
> someone would like to help and start with Windows, I could get  
> tools. (I don't have a MAC at my disposal right now. But, if you'd  
> like to start on MAC, I could potentially get one.)
>
> Please let me know online or off if you're interested. I think it  
> would make a great addition to the usefulness of Squeak for audio  
> and video.
>
> thanks,
>
> brad