Fix audio on windows (#3)

Reviewed-on: #3

Automatically choose supported profile
Play stream once created

Co-authored-by: Sam Sartor <me@samsartor.com>
Co-committed-by: Sam Sartor <me@samsartor.com>

gui/src/effects.rs

@@ -97,13 +97,13 @@ impl AudioProcessor {
 }
 
 impl AudioProcessor {
-    pub fn process(&mut self, audio: &[f32], output: &mut Vec<f32>) {
+    pub fn process(&mut self, audio: &[f32], channels: usize, output: &mut Vec<f32>) {
         let mut include_raw = true;
         if self.denoise {
             with_denoising_model(&self.spawn, |df| {
                 include_raw = false;
 
-                self.buffer.extend_from_slice(audio);
+                self.buffer.extend(audio.iter().step_by(channels).copied());
                 output.reserve(audio.len());
 
                 let hop = df.hop_size;
@@ -130,7 +130,7 @@ impl AudioProcessor {
         }
 
         if include_raw {
-            output.extend_from_slice(audio);
+            output.extend(audio.iter().step_by(channels).copied());
         }
     }
 }