getDom: Get lowest dominant frequency band

In tatters/soundgen_beta: Parametric Voice Synthesis

Description

Internal soundgen function.

Usage

getDom(frame, samplingRate, bin, domSmooth, domThres, pitchFloor)

Arguments

frame	the real part of the spectrum of a frame, as returned by fft
samplingRate	sampling rate (Hz)
bin	the width of one bin in spectrogram, Hz
domSmooth	the width of smoothing interval (Hz) for finding dom
domThres	(0 to 1) to find the lowest dominant frequency band, we do short-term FFT and take the lowest frequency with amplitude at least domThres
pitchFloor	absolute bounds for pitch candidates (Hz)

Details

Calculate the lowest frequency band in the spectrum above pitchFloor whose power exceeds a certain threshold.

Value

Returns a list of $dom (NA or numeric) and $dom_array (either NULL or a dataframe of pitch candidates).

tatters/soundgen_beta documentation built on May 14, 2019, 9 a.m.