SonaLab - 实时声乐分析软件
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Extrinsic Tension

喉外力参与

Vocal Science Principle

Extrinsic laryngeal muscle compensation — the vocal folds lack thickness or cannot close efficiently, causing external muscles to over-engage.

Detection criteria:

  • SPR (Singing Power Ratio) exceeds threshold (default > -4 dB)
  • F1 exceeds threshold

    • High SPR combined with elevated F1 indicates the extrinsic muscles around the larynx are tensing to compensate for inefficient vocal fold function.

    Justin's Note

    喉外肌紧张会限制声带的自由振动，导致声音紧绷