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authorJacob Lee <jacob@unabridgedsoftware.com>2021-10-26 14:38:42 -0400
committerJacob Lee <jacob@unabridgedsoftware.com>2021-10-26 14:38:42 -0400
commit720ec920852a4d124fe004edae314ae14364a98c (patch)
tree32b8fe21094c9f7aa53e36b6157431b661421a1b /klangfarbrs/src/ignore
parent3b4cb793d67199a1c586feedf1e17987caa45bc3 (diff)
Scorched Earth
Diffstat (limited to 'klangfarbrs/src/ignore')
-rw-r--r--klangfarbrs/src/ignore147
1 files changed, 147 insertions, 0 deletions
diff --git a/klangfarbrs/src/ignore b/klangfarbrs/src/ignore
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+
+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;
+ }
+ }
+ }
+
+}