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Welcome to the akuTEK voice acoustics section.

The magic first seconds when a child is born, everyone present holds their breath, only waiting for its first vocal performance—the cry of life.  The importance of the sound from the human voice remains throughout life.

Corresponding to speech and singing, voice acoustics may be divided into Speech acoustics and Singing acoustics.

The sounds produced in speech and singing is a combination of vowels—tones produced by the vocal cords and filtered by the upper vocal tract, and consonants—transients and noise bursts produced and modulated by the upper vocal tract.

The acoustics of vowels and the temporal development of the power spectrum from the voice is often studied in a so called spectrogram.

While most of the voice sound energy radiates from the head— basically from mouth and nose– a large fraction of the low frequency sound of vowel sounds in deep male voices radiates from the chest. Measurements have proved examples of as much as 78% of the sound power of the fundamental tone radiating from the chest of a bass singer while humming on an E flat, see the paper Sound radiation from the chest of bass singers from SMAC 93 (Stockholm Music Acoustics Conference 1993) (SMAC93 proceedings: Content).

Voice acoustics