Programmer Guide/Command Reference/EVAL/f0ac: Difference between revisions

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Revision as of 17:31, 18 November 2010

f0ac

F0 detection using autocorrelation, as described by Paul Boersma (1993: Accurate Short-Term Analysis of the Fundamental Frequency and the Harmonics-To-Noise Ratio of a Sampled Sound. Proceedings of the IFA. Vol 17. pp 97-110).

Usage:

f0ac(x, sr, hopsize, minf0, maxf0, nppw, nMaxCandidates, thSilence, thVoice, costOct, costOctJump, costVUV)

Parameters:
x
The signal vector.
sr
The sampling rate in Hertz.
hopsize
The hop size in seconds. The default is 0.
minf0
The minimum f0 in Hertz. The default is 75.
maxf0
The maximum f0 in Hertz. The default is 400.
nppw
The number of periods per window. The default is 3.
nMaxCandidates
The maximum number of candidates. The default is 15.
thSilence
The silence threshold. The default is 0.05.
thVoice
The voicing threshold. The default is 0.4.
costOct
The octave cost. The default is 0.01.
costOctJump
The octave jump cost. The default is 0.4.
costVUV
The voiced/unvoiced transition cost. The default is 0.2.
Result:

An f0 vector in Hertz.

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