Fix: MIDI precision

src/engine/audio.rs

@@ -282,6 +282,7 @@ pub struct AudioStreamInfo {
     pub sample_rate: f32,
     pub host_name: String,
     pub channels: u16,
+    pub input_sample_rate: Option<f32>,
 }
 
 #[cfg(feature = "cli")]
@@ -367,10 +368,16 @@ pub fn build_stream(
             dev
         });
 
-    let input_channels: usize = input_device
+    let input_config = input_device
+        .as_ref()
+        .and_then(|dev| dev.default_input_config().ok());
+    let input_channels: usize = input_config
         .as_ref()
-        .and_then(|dev| dev.default_input_config().ok())
         .map_or(0, |cfg| cfg.channels() as usize);
+    let input_sample_rate = input_config.and_then(|cfg| {
+        let rate = cfg.sample_rate() as f32;
+        (rate != sample_rate).then_some(rate)
+    });
 
     engine.input_channels = input_channels;
 
@@ -519,6 +526,7 @@ pub fn build_stream(
         sample_rate,
         host_name,
         channels: effective_channels,
+        input_sample_rate,
     };
     Ok((stream, input_stream, info, analysis_handle, registry))
 }