play.py: tilt EQ on spectrum — bass reduced 70%, highs untouched

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-06-05 23:00:19 +00:00 · 2026-04-04 07:57:09 -04:00
parent 054d837454
commit 219ac4974b
1 changed files with 4 additions and 0 deletions
@@ -349,6 +349,10 @@ def play_audio(buf, sample_rate, title="", info_lines=None, offset_sec=0.0):
                        hi = lo + 1
                    bands.append(np.mean(fft[lo:hi]))
                # Log scale — human hearing is logarithmic
+                # Tilt — reduce bass, boost highs to compensate for FFT energy distribution
+                for j in range(len(bands)):
+                    frac = j / len(bands)
+                    bands[j] *= (0.3 + frac * 0.7)  # bass at 30%, highs at 100%
                bands = [np.log1p(b * 3) for b in bands]
                peak = max(bands) if max(bands) > 0 else 1
                # Multi-row spectrum: map each band to 0..n_rows*4 height