Converts an s32 cents value to an f32 ratio
#include <libaudio.h> /* libaudio.h */ f32 alCents2Ratio(s32 cents);
alCents2Ratio is a utility routine for converting a detune value (measured in cents) into a ratio to be multiplied against the base pitch. Negative values lower the pitch, and positive values raise the pitch.
A value of 1200 cents will produce a ratio value of 2, which when multiplied times the base pitch, will produce a pitch one octave higher. A value of -1200 will produce a ratio value of 0.5, which when multiplied against the base pitch will produce a pitch of one octave lower.
1999/04/30 Changed Format