SoapyAudio module

[pothosware]

SoapyAudio module

[guruofquality]

I can see how making the audio abstraction behind the same API can be a big help. I think that some of these devices may also have a serial port for configuration/control. Perhaps those devices could have their own Soapy SDR module for the control, but internally they instantiate the SoapyAudio and just forward their stream calls. Just a thought.

I haven't use RtAudio. I have been using PortAudio for cross platform stuff. So if its of any use, here is the code for the audio source and sink block in pothos. It makes use of PortAudio for multiple data types and multiple channel streams vs interleaved data.

• https://github.com/pothosware/pothos-audio/wiki
• https://github.com/pothosware/pothos-audio/blob/master/AudioSink.cpp
• https://github.com/pothosware/pothos-audio/blob/master/AudioSource.cpp

[cjcliffe]

RtAudio supports several different APIs well under the hood; whatever is the best for each platform/compile can be used automatically (including dummy driver). It also includes support for JACK audio which allows advanced routing on Linux/OSX.

Unix/Linux in particular can use ALSA, OSS, PULSE and JACK (all simultaneously if desired); Windows has DirectSound or WASAPI and OSX has CoreAudio.

It's been the most stable for everthing I've thrown at it so far and I'm familiar with it enough to know I can make a full module out of it -- you can find more info here: https://github.com/thestk/rtaudio

[guruofquality]

Have at it :-)
https://github.com/pothosware/SoapyAudio

[cjcliffe]

Thanks! :)