diff --git a/rust-whisper.d/src/main.rs b/rust-whisper.d/src/main.rs
index 776dc75..379fe74 100644
--- a/rust-whisper.d/src/main.rs
+++ b/rust-whisper.d/src/main.rs
@@ -50,21 +50,19 @@ fn main() {
             .unwrap()
             .with_max_sample_rate();
 
-         let channels = cfg.channels();
-         let downsample_ratio = cfg.sample_rate().0 as f32 / 16000.0;
+         let downsample_ratio = cfg.channels() as f32 * (cfg.sample_rate().0 as f32 / 16000.0);
          let mut buffer = vec![];
          let mut last = Instant::now();
          let stream = device.build_input_stream(
             &cfg.clone().into(),
             move |data: &[f32], _: &cpal::InputCallbackInfo| {
-               let mono_data: Vec<f32> = data.iter().map(|x| *x).step_by(channels.into()).collect();
                let mut downsampled_data = vec![];
-               for i in 0..(mono_data.len() as f32 / downsample_ratio) as usize {
+               for i in 0..(data.len() as f32 / downsample_ratio) as usize {
                   let mut upsampled = i as f32 * downsample_ratio;
-                  if upsampled > (mono_data.len()-1) as f32 {
-                     upsampled = (mono_data.len()-1) as f32
+                  if upsampled > (data.len()-1) as f32 {
+                     upsampled = (data.len()-1) as f32
                   }
-                  downsampled_data.push(mono_data[upsampled as usize]);
+                  downsampled_data.push(data[upsampled as usize]);
                }
                downsampled_data.iter().for_each(|x| buffer.push(*x));
                if Instant::now() - last > stream_step {