33 lines
810 B
Rust
33 lines
810 B
Rust
extern crate cpal;
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fn main() {
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let mut channel = cpal::Channel::new();
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assert!(channel.get_samples_format() == cpal::SampleFormat::U16);
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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::FloatMath;
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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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let mut buffer = channel.append_data();
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for sample in buffer.chunks_mut(2) {
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let value = data_source.next().unwrap();
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sample[0] = value;
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sample[1] = value;
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}
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}
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}
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