Feat: UI/UX and ducking compressor

crates/ratatui/src/spectrum.rs

@@ -8,11 +8,17 @@ const BLOCKS: [char; 8] = ['\u{2581}', '\u{2582}', '\u{2583}', '\u{2584}', '\u{2
 
 pub struct Spectrum<'a> {
     data: &'a [f32; 32],
+    gain: f32,
 }
 
 impl<'a> Spectrum<'a> {
     pub fn new(data: &'a [f32; 32]) -> Self {
-        Self { data }
+        Self { data, gain: 1.0 }
+    }
+
+    pub fn gain(mut self, g: f32) -> Self {
+        self.gain = g;
+        self
     }
 }
 
@@ -36,7 +42,7 @@ impl Widget for Spectrum<'_> {
             if w == 0 {
                 continue;
             }
-            let bar_height = mag * height;
+            let bar_height = (mag * self.gain).min(1.0) * height;
             let full_cells = bar_height as usize;
             let frac = bar_height - full_cells as f32;
             let frac_idx = (frac * 8.0) as usize;