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Diffstat (limited to 'klangfarbrs/src/ignore')
| -rw-r--r-- | klangfarbrs/src/ignore | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/klangfarbrs/src/ignore b/klangfarbrs/src/ignore new file mode 100644 index 0000000..6c52a4b --- /dev/null +++ b/klangfarbrs/src/ignore @@ -0,0 +1,147 @@ + +pub mod test { + use cpal; + use cpal::traits::{DeviceTrait, HostTrait, StreamTrait}; + use dasp::{Sample}; + use dasp_signal::{self as signal, Signal}; + use std::sync::mpsc; + + pub fn test() -> Result<(), anyhow::Error> { + let host = cpal::default_host(); + let device = host + .default_output_device() + .expect("failed to find a default output device"); + let config = device.default_output_config()?; + + match config.sample_format() { + cpal::SampleFormat::F32 => run::<f32>(&device, &config.into())?, + cpal::SampleFormat::I16 => run::<i16>(&device, &config.into())?, + cpal::SampleFormat::U16 => run::<u16>(&device, &config.into())?, + } + + Ok(()) + } + + fn run<T>(device: &cpal::Device, config: &cpal::StreamConfig) -> Result<(), anyhow::Error> + where + T: cpal::Sample, + { + // Create a signal chain to play back 1 second of each oscillator at A4. + let base_freq = 440.0; + let multipliers = [0.8, 1.0, 1.2, 1.7, 2.9, 4.5, 8.8, 1.9, 3.6]; + let freqs = multipliers.map(|m| signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * m)); + let _sines = freqs.map(|f| f.clone().sine()); + + // Shitty naive implementation until Rust clicks. + let hz_0 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 0.8); + let hz_1 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 1.0); + let hz_2 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 1.2); + let hz_3 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 1.7); + let hz_4 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 2.9); + let hz_5 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 4.5); + let hz_6 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 8.8); + let hz_7 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 1.9); + let hz_8 = signal::rate(config.sample_rate.0 as f64).const_hz(base_freq * 3.6); + + let sine_0 = hz_0.clone().sine().scale_amp(0.03); + let sine_1 = hz_1.clone().sine(); + let sine_2 = hz_2.clone().sine().scale_amp(0.8); + let sine_3 = hz_3.clone().sine().scale_amp(0.004); + let sine_4 = hz_4.clone().sine().scale_amp(0.03); + let sine_5 = hz_5.clone().sine().scale_amp(0.02); + let sine_6 = hz_6.clone().sine().scale_amp(0.001); + let sine_7 = hz_7.clone().sine().scale_amp(0.006); + let sine_8 = hz_8.clone().sine().scale_amp(0.05); + + + // let hz = signal::rate(config.sample_rate.0 as f64).const_hz(440.0); + let one_sec = config.sample_rate.0 as usize; + + // let mut sin_a = hz + // .clone() + // .sine(); + + // let mut sin_b = hz_b + // .clone() + // .sine(); + + let mut synth = sine_0 + .add_amp(sine_1) + .add_amp(sine_2) + .add_amp(sine_3) + .add_amp(sine_4) + .add_amp(sine_5) + .add_amp(sine_6) + .add_amp(sine_7) + .add_amp(sine_8) + .take(one_sec) + .map(|s| s.to_sample::<f32>() * 0.2); + + // let mut synth = sines[0] + // .add_amp(sines[1]) + // .add_amp(sines[2]) + // .add_amp(sines[3]) + // .add_amp(sines[4]) + // .add_amp(sines[5]) + // .add_amp(sines[6]) + // .add_amp(sines[7]) + // .add_amp(sines[8]) + // .take(one_sec) + // .map(|s| s.to_sample::<f32>() * 0.2); + // let mut synth = sin_a.add_amp(sin_b).take(one_sec).map(|s| s.to_sample::<f32>() * 0.2); + // let mut synth = hz + // .clone() + // .sine() + // .take(one_sec) + // .chain(hz.clone().saw().take(one_sec)) + // .chain(hz.clone().square().take(one_sec)) + // .chain(hz.clone().noise_simplex().take(one_sec)) + // .chain(signal::noise(0).take(one_sec)) + // .map(|s| s.to_sample::<f32>() * 0.2); + + // A channel for indicating when playback has completed. + let (complete_tx, complete_rx) = mpsc::sync_channel(1); + + // Create and run the stream. + let err_fn = |err| eprintln!("an error occurred on stream: {}", err); + let channels = config.channels as usize; + let stream = device.build_output_stream( + config, + move |data: &mut [T], _: &cpal::OutputCallbackInfo| { + write_data(data, channels, &complete_tx, &mut synth) + }, + err_fn, + )?; + stream.play()?; + + // Wait for playback to complete. + complete_rx.recv().unwrap(); + stream.pause()?; + + Ok(()) + } + + fn write_data<T>( + output: &mut [T], + channels: usize, + complete_tx: &mpsc::SyncSender<()>, + signal: &mut dyn Iterator<Item = f32>, + ) where + T: cpal::Sample, + { + for frame in output.chunks_mut(channels) { + let sample = match signal.next() { + None => { + complete_tx.try_send(()).ok(); + 0.0 + } + Some(sample) => sample, + }; + let value: T = cpal::Sample::from::<f32>(&sample); + for sample in frame.iter_mut() { + *sample = value; + } + } + } + +} |