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| import numpy as np | |
| import librosa | |
| def apply_equalizer(y, bass_gain, mid_gain, treble_gain, sr): | |
| # Simple EQ logic using band filters (can be improved) | |
| y_bass = librosa.effects.preemphasis(y) * (1 + bass_gain / 10) | |
| y_mid = y * (1 + mid_gain / 10) | |
| y_treble = librosa.effects.preemphasis(y[::-1])[::-1] * (1 + treble_gain / 10) | |
| return (y_bass + y_mid + y_treble) / 3 | |
| def apply_pitch_shift(y, sr, n_steps): | |
| return librosa.effects.pitch_shift(y, sr=sr, n_steps=n_steps) | |
| def extract_lyrics(file): | |
| content = file.read().decode('utf-8') | |
| return f"<pre>{content}</pre>" | |