src/main.rs


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use std::time::Duration;

use rand::Rng;
use rodio::{
    source::{SineWave, Zero},
    OutputStream, Sink, Source,
};

fn main() {
    let (_stream, stream_handle) = OutputStream::try_default().unwrap();
    let sink = Sink::try_new(&stream_handle).unwrap();

    loop {
        let mut rng = rand::thread_rng();
        let freq = rng.gen_range((440 / 4)..(440 * 4));
        let wave = SineWave::new(freq);
        let zero: Zero<f32> = Zero::new(1, 48_000);
        let length = rng.gen_range(0.1..0.3);
        let source = wave
            .take_crossfade_with(zero, Duration::from_secs_f32(length))
            .amplify(0.20);
        sink.append(source);

        println!("8{}D", "=".repeat((length * 50.0) as usize));

        // The sound plays in a separate thread. This call will block the current thread until the sink
        // has finished playing all its queued sounds.
        sink.sleep_until_end();
    }
}