33 lines
795 B
Rust
33 lines
795 B
Rust
extern crate cpal;
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fn main() {
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let mut channel = cpal::Voice::new();
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// producing a sinusoid
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let mut data_source =
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std::iter::iterate(0.0f32, |f| f + 0.03)
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.map(|angle| {
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use std::num::Float;
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use std::num::Int;
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let angle = angle.sin();
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let max: u16 = Int::max_value();
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let value = (max as f32 / 2.0) + (angle * (max as f32 / 2.0));
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value as u16
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});
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loop {
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{
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let mut buffer = channel.append_data(1, cpal::SamplesRate(44100), 32768);
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for sample in buffer.iter_mut() {
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let value = data_source.next().unwrap();
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*sample = value;
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}
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}
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channel.play();
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}
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}
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