diff --git a/src/engine/audio.rs b/src/engine/audio.rs
index ff3e2c4..0e05393 100644
--- a/src/engine/audio.rs
+++ b/src/engine/audio.rs
@@ -118,10 +118,10 @@ impl SpectrumAnalyzer {
             0.5 * (1.0 - (2.0 * std::f32::consts::PI * i as f32 / (FFT_SIZE - 1) as f32).cos())
         });
 
-        let nyquist = sample_rate / 2.0;
         let min_freq: f32 = 20.0;
+        let max_freq: f32 = 16000.0;
         let log_min = min_freq.ln();
-        let log_max = nyquist.ln();
+        let log_max = max_freq.ln();
         let band_edges: [usize; NUM_BANDS + 1] = std::array::from_fn(|i| {
             let freq = (log_min + (log_max - log_min) * i as f32 / NUM_BANDS as f32).exp();
             let bin = (freq * FFT_SIZE as f32 / sample_rate).round() as usize;