Klingholz F
Klinik und Poliklinik für Hals-, Nasen- und Ohrenkranke, Universität München.
Laryngorhinootologie. 1992 Nov;71(11):581-3. doi: 10.1055/s-2007-997360.
The singing formant is the product of an articulatory gesture. Devices for phonetogram measurement often claim the ability to determine it. However, they measure rather the overtone content or the noise of the voice than the formant. Moreover, the voice efficiency (ratio of the sound pressure in the frequency band 2-5 kHz to the total sound pressure), also measured by these devices, is not defined in a physical or physiological sense. Such measurement does not evaluate the efficiency of the vocal apparatus.
歌唱共振峰是一种发音动作的产物。语音图测量设备常常宣称具备确定它的能力。然而，它们测量的实际上是泛音成分或嗓音的噪声，而非共振峰。此外，这些设备所测量的嗓音效率（2至5千赫兹频段内的声压与总声压之比），在物理或生理意义上并无明确界定。这样的测量并未评估发声器官的效率。
