Gets a speech channel’s current speech pitch.
- macOS 10.0+
The speech channel whose pitch you wish to determine.
On return, a pointer to the current pitch of the voice in the speech channel, expressed as a fixed-point frequency value.
A result code. See Result Codes.
Typical voice frequencies range from around 90 hertz for a low-pitched male voice to perhaps 300 hertz for a high-pitched child’s voice. These frequencies correspond to approximate pitch values in the ranges of 30.000 to 40.000 and 55.000 to 65.000, respectively.