PortAudio ASIO bindings compatibility

[kevinstadler]

Hello,

we have been successfully using JSyn as part of the Processing sound library with the precompiled JPortAudio bindings for both Mac and Windows available from the JSyn website. Since we want to add ASIO support we have tried to substitute the bundled Windows dll with other precompiled binaries that we found, but we have not been able to get the java bindings to work with any of them (see processing/processing-sound#87). Before we get started on compiling the Windows dlls ourselves we were wondering if there are any constraints on which version of the PortAudio API/codebase is compatible with the bindings, since we found no concrete information on this (and it seemed like some of the issues with other binaries that we tried had to do with v18/19)?

Many thanks,
Kevin

[philburk]

I am glad to hear that JSyn and JPortAudio are still finding use in Processing.

I looked at the original code for JPortAudio checked into the Assembla SVN in 2012.
It appeared to be using the V19 API:
https://app.assembla.com/spaces/portaudio/git/source/master/bindings/java/c/src/com_portaudio_PortAudio.c

So I suspect that the binary incompatibilities may be due to linker settings.

Building fresh binaries and JAR files is probably the best way to get a consistent set of libraries.
I normally build for Mac and Linux. So I cannot offer much advice for Windows/ASIO builds.
For build advice I would consult the PortAudio mail list.
https://www.portaudio.com/contacts.html