getDom: Get lowest dominant frequency band

In soundgen: Sound Synthesis and Acoustic Analysis

Get lowest dominant frequency band

Description

Internal soundgen function.

Usage

getDom(frame, bin, freqs, domSmooth, domThres, pitchFloor, pitchCeiling)

Arguments

frame	the abs spectrum of a frame, as returned by fft
bin	spectrogram bin width, Hz
freqs	frequency per bin of spectrogram
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, pitchCeiling	absolute bounds for pitch candidates (Hz)

Details

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

Value

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

soundgen documentation built on Sept. 12, 2024, 6:29 a.m.