void PitchTier_shiftFrequencies (PitchTier me, double tmin, double tmax, double shift, int unit) {
try {
for (long i = 1; i <= my points -> size; i ++) {
RealPoint point = (RealPoint) my points -> item [i];
double frequency = point -> value;
if (point -> number < tmin || point -> number > tmax) continue;
switch (unit) {
case kPitch_unit_HERTZ: {
frequency += shift;
if (frequency <= 0.0)
Melder_throw ("The resulting frequency has to be greater than 0 Hz.");
} break; case kPitch_unit_MEL: {
frequency = NUMhertzToMel (frequency) + shift;
if (frequency <= 0.0)
Melder_throw ("The resulting frequency has to be greater than 0 mel.");
frequency = NUMmelToHertz (frequency);
} break; case kPitch_unit_LOG_HERTZ: {
frequency = pow (10.0, log10 (frequency) + shift);
} break; case kPitch_unit_SEMITONES_1: {
frequency = NUMsemitonesToHertz (NUMhertzToSemitones (frequency) + shift);
} break; case kPitch_unit_ERB: {
frequency = NUMhertzToErb (frequency) + shift;
if (frequency <= 0.0)
Melder_throw ("The resulting frequency has to be greater than 0 ERB.");
frequency = NUMerbToHertz (frequency);
}
}
point -> value = frequency;
}
} catch (MelderError) {
Melder_throw (me, ": not all frequencies were shifted.");
}
}
static double HertzToSpecial (double value, int pitchUnit) {
return pitchUnit == kPitch_unit_HERTZ ? value :
pitchUnit == kPitch_unit_HERTZ_LOGARITHMIC ? value <= 0.0 ? NUMundefined : log10 (value) :
pitchUnit == kPitch_unit_MEL ? NUMhertzToMel (value) :
pitchUnit == kPitch_unit_LOG_HERTZ ? value <= 0.0 ? NUMundefined : log10 (value) :
pitchUnit == kPitch_unit_SEMITONES_1 ? value <= 0.0 ? NUMundefined : 12.0 * log (value / 1.0) / NUMln2 :
pitchUnit == kPitch_unit_SEMITONES_100 ? value <= 0.0 ? NUMundefined : 12.0 * log (value / 100.0) / NUMln2 :
pitchUnit == kPitch_unit_SEMITONES_200 ? value <= 0.0 ? NUMundefined : 12.0 * log (value / 200.0) / NUMln2 :
pitchUnit == kPitch_unit_SEMITONES_440 ? value <= 0.0 ? NUMundefined : 12.0 * log (value / 440.0) / NUMln2 :
pitchUnit == kPitch_unit_ERB ? NUMhertzToErb (value) :
NUMundefined;
}
double structPitch :: v_convertStandardToSpecialUnit (double value, long ilevel, int unit) {
if (ilevel == Pitch_LEVEL_FREQUENCY) {
return
unit == kPitch_unit_HERTZ ? value :
unit == kPitch_unit_HERTZ_LOGARITHMIC ? value <= 0.0 ? NUMundefined : log10 (value) :
unit == kPitch_unit_MEL ? NUMhertzToMel (value) :
unit == kPitch_unit_LOG_HERTZ ? value <= 0.0 ? NUMundefined : log10 (value) :
unit == kPitch_unit_SEMITONES_1 ? value <= 0.0 ? NUMundefined : 12.0 * log (value / 1.0) / NUMln2 :
unit == kPitch_unit_SEMITONES_100 ? value <= 0.0 ? NUMundefined : 12.0 * log (value / 100.0) / NUMln2 :
unit == kPitch_unit_SEMITONES_200 ? value <= 0.0 ? NUMundefined : 12.0 * log (value / 200.0) / NUMln2 :
unit == kPitch_unit_SEMITONES_440 ? value <= 0.0 ? NUMundefined : 12.0 * log (value / 440.0) / NUMln2 :
unit == kPitch_unit_ERB ? NUMhertzToErb (value) :
NUMundefined;
} else {
return
unit == Pitch_STRENGTH_UNIT_AUTOCORRELATION ? value :
unit == Pitch_STRENGTH_UNIT_NOISE_HARMONICS_RATIO ?
value <= 1e-15 ? 1e15 : value > 1.0 - 1e-15 ? 1e-15 : (1.0 - value) / value : /* Before losing precision. */
unit == Pitch_STRENGTH_UNIT_HARMONICS_NOISE_DB ?
value <= 1e-15 ? -150.0 : value > 1.0 - 1e-15 ? 150.0 : 10 * log10 (value / (1.0 - value)) : /* Before losing precision. */
NUMundefined;
}
}
