APar

The APar element contains parameters calculated for a specific audio segment. An APar must be the child of an ASeg element. The APar element has the following attributes:

type

- the type of method. The following types exist:

F0 - Fundamental Frequency

RMS - Signal Energy

Phase - Phase Spectrum

ASpec - Amplitude Spectrum

Fof - Formant Frequencies

Cep - Cepstrum

LAT - Log attack time

CLPC - LPC coefficient

TFA - Amplitude Spectrogram

TFP - Phase Spectrogram

method

the method. The following methods exist:

FO - Formants

RMSB - Frequency Band Energy

RMS - Signal Energy (RMS)

F0A - Fundamental Frequency (SIFT)

F0B - Fundamental Frequency (autocorr.)

F0H - Fundamental Frequency (harmonic grid)

ALPHA - LPC - Error Energy

IRRSP - Irrelevance Amplitude Spectrum

IRRTH - Irrelevance Threshhold

FFT - FFT Amplitude Spectrum

FFTP - FFT Phase Spectrum

CEPST - Cepstrum Smoothed Spectrum

LOFAR - Spectrum - Cepstrum

WAVE - Wavelet Amplitude Spectrum

WAVEP - Wavelet Phase Spectrum

STFT - FFT Amplitude Spectrogram

STFTP - FFT Phase Spectrogram

STWT - Wavelet Amplitude Spectrogram

STWTP - Wavelet Phase Spectrogram

LPC - LPC Smoothed Spectrum

LPAI - LPC Inverse Filter Coefficients

LPRC - LPC Reflection Coefficients

LPAR - LPC Area Coefficients

nx

the number of x axis

ny

the number of y data vectors

CH

the channel this parameter was calculated for.

lfrm

the frame length in milliseconds

sfrm

the frame shift in milliseconds

nfrm

the number of frames

date

the date the parameter was saved

time

the time the parameter was saved