| 音符 | 频率 (Hz) | MIDI | 周期 (ms) |
|---|
计算原理
十二平均律:f = A4 × 2^((midi − 69) / 12)。每个半音相差 2^(1/12) ≈ 1.0595 倍。音分为半音的 1/100:偏移 +c 音分即乘以 2^(c/1200)。
MIDI 音符编号 69 = A4。C4(中央 C)为 MIDI 音符 60。
获取任意音符在每个八度下的精确Hz频率,支持自定义A4基准音高(440、432、442 Hz)及音分微调。
| 音符 | 频率 (Hz) | MIDI | 周期 (ms) |
|---|
十二平均律:f = A4 × 2^((midi − 69) / 12)。每个半音相差 2^(1/12) ≈ 1.0595 倍。音分为半音的 1/100:偏移 +c 音分即乘以 2^(c/1200)。
MIDI 音符编号 69 = A4。C4(中央 C)为 MIDI 音符 60。
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