portaudio-rs Demos

Copyright (c) 2018 Bart Massey

This collection of demos is an alternative to those provided with the source code to the portaudio-rs PortAudio bindings crate.

As someone new to PortAudio and portaudio-rs, I found the existing demos to be overly complex and mysterious. This code builds up from a series of minimal examples. It is also a bit more Rustic.

Demos

• nbsquare.rs: Emit a monophonic square wave on audio output using the PulseAudio non-blocking interface.

• bsquare.rs: Emit a monophonic square wave on audio output using the PulseAudio blocking interface.

• bsine.rs: Emit a monophonic sine wave on audio output using the PulseAudio blocking interface.

• bwhite2.rs: Emit stereo white noise from a wavetable on audio output using the PulseAudio blocking interface.

• brecord.rs: Read monaural audio input using the PulseAudio blocking interface and write it to stdout as signed 16-bit big-endian samples. On Linux, you can save the output in a file named "test.s16" and play it with the SoX play command: play -B -r 44100 test.s16.

• bfuzz.rw: Read audio input from a WAV file and play it "fuzzed" using PortAudio's blocking interfaces.

Note To Contributors

These demos share a lot of code: they are fairly copy-and-paste. This is intentional: I want the demos to be self-contained without going to fancy structuring that might obscure the function. If you make a change to one of the demos, please check the others to see if your change should also be made there.

License

This program is licensed under the "MIT License". Please see the file LICENSE in this distribution for license terms.