A physiological experiment was carried out on six types of“placing the tone”by F. Husler (type No. 1 was abridged) with a forty-one years old tenor. The vowel used was“a”, and the vocal pitch was“f”in No. 2, 3a, 3b and“a'”in No. 4, 5, 6.
The following items were analysed:
1) The vibration mode of the vocal cords (Fig. 1) and its opening and closing time rate (Tab. 1) as observed by ultra-high speed laryngocinematography.
2) The displacements of the larynx (Fig. 2, 3) and the diaphragm (Fig. 6) by X-ray cinematography.
3) The sound spectrum of the voice (Fig. 4) .
4) The air flow rate, the vocal intensity, the circumference of the chest and the abdomenn on four points were recorded polygraphically (Fig. 5) and mean values were estimated (Tab. 2) .
The subject showed some difficulty in performing proper control of breathing for the type six.
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