DEPRECATED
rust-portaudio's API has improved enough to the point where sound_stream is no longer necessary.
SoundStream 
A simple-as-possible, fast audio I/O stream wrapping PortAudio for Rust! It looks like this:
// The callback we'll use to pass to the Stream. It will write the input directly to the output.
let f = Box::new(move |input: &[f32], _: Settings,
output: &mut[f32], _: Settings,
dt: f64, _: CallbackFlags| {
for (output_sample, input_sample) in o.iter_mut().zip(i.iter()) {
*output_sample = *input_sample;
}
CallbackResult::Continue
});
// Run our callback on the default, duplex, non-blocking stream.
let stream = SoundStream::new()
.duplex(StreamParams::new(), StreamParams::new())
.run_callback(f)
.unwrap();Usage
Add sound_stream to your Cargo.toml dependencies like so:
[dependencies]
sound_stream = "*"
For more details, see the examples.
PortAudio
SoundStream uses PortAudio as a cross-platform audio backend. The rust-portaudio dependency will first try to find an already installed version on your system before trying to download it and build PortAudio itself.
License
MIT - Same license as PortAudio.