loop infinitely, randomizing frequency and duration

1 files changed, 19 insertions, 9 deletions

diff --git a/src/main.rs b/src/main.rs
index 8a3395a..6b79749 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,18 +1,28 @@
 use std::time::Duration;
 
-use rodio::{source::SineWave, OutputStream, Sink, Source};
+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();
 
-    // Add a dummy source of the sake of the example.
-    let source = SineWave::new(440)
-        .take_duration(Duration::from_secs_f32(0.25))
-        .amplify(0.20);
-    sink.append(source);
+    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);
 
-    // 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();
+        // 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();
+    }
 }