remove useless stuff

src/audio_input.rs

@@ -27,15 +27,6 @@ impl Default for AudioFft {
     }
 }
 
-/// Event carrying interleaved mic samples as f32 in the device's native
-/// sample rate and channel layout.
-#[derive(Event, Debug, Clone)]
-pub struct AudioCaptureData {
-    pub samples: Vec<f32>,
-    pub sample_rate: u32,
-    pub channels: u16,
-}
-
 /// Holds the CPAL stream alive and a channel for transferring audio to Bevy world.
 #[derive(Resource)]
 struct AudioCaptureStream {
@@ -50,8 +41,7 @@ pub struct AudioCapturePlugin;
 
 impl Plugin for AudioCapturePlugin {
     fn build(&self, app: &mut App) {
-        app.add_event::<AudioCaptureData>()
-            .init_resource::<AudioFft>()
+        app.init_resource::<AudioFft>()
             .add_systems(Startup, init_audio_input_stream)
             .add_systems(Update, dispatch_audio_events);
     }
@@ -132,25 +122,15 @@ where
     )
 }
 
-fn dispatch_audio_events(
-    mic: Res<AudioCaptureStream>,
-    mut writer: EventWriter<AudioCaptureData>,
-    mut fft_res: ResMut<AudioFft>,
-) {
+fn dispatch_audio_events(stream: Res<AudioCaptureStream>, mut fft_res: ResMut<AudioFft>) {
     // FFT parameters
     const FFT_SIZE: usize = 1024;
     // Drain any available audio buffers without blocking the frame.
-    while let Ok(samples) = mic.rx.try_recv() {
-        writer.write(AudioCaptureData {
-            samples: samples.clone(),
-            sample_rate: mic.sample_rate,
-            channels: mic.channels,
-        });
-
+    while let Ok(samples) = stream.rx.try_recv() {
         // Compute FFT on the first channel (mono mix)
-        let mut mono: Vec<f32> = if mic.channels > 1 {
+        let mut mono: Vec<f32> = if stream.channels > 1 {
             samples
-                .chunks(mic.channels as usize)
+                .chunks(stream.channels as usize)
                 .map(|frame| frame[0])
                 .collect()
         } else {
@@ -179,7 +159,7 @@ fn dispatch_audio_events(
 
         // Update AudioFft resource
         fft_res.spectrum = spectrum;
-        fft_res.sample_rate = mic.sample_rate;
-        fft_res.channels = mic.channels;
+        fft_res.sample_rate = stream.sample_rate;
+        fft_res.channels = stream.channels;
     }
 }