FeatureSet type description

% FeatureSet fs
fs
% fs -help

DESCRIPTION

set of features


METHODS

puts               
delete             delete a feature
name               get feature name for a given index
index              get feature index for a given name
display            displays a feature
SVector            insert SVector type object into feature set
FMatrix            insert FMatrix type object into feature set
setDesc            read a 'Feature Description'
setAccess          read a 'File Access Description'
frame              return frame of a feature given a featureSet frame index
frameN             return featureSet frame number given a list of features
readADC            read ADC file
writeADC           write ADC file
audioInit          init audio device
recordStart        start audio recording (see also 'recordGet')
recordGet          get new audio data after starting with 'recordStart'
play               play audio
adc2pow            framebased power
peak               framebased peak distance
maxpeak            framebased maximum of peak to peak
zero               framebased zero crossing rate / sec
silTK              T.Kemp's silence feature
spectrum           framebased power spectrum
adc2mel            16 framebased melscale coefficients, 8 and 16 kHz only
corr               create puls in signals
puls               create puls in signals
tone               create audio signals
noise              create noise signal
xtalk              remove crosstalk with an adaptive filter
resample           resample audiosignal changing sampling rate
melscale           melscale from power spectrum
plp                perceptual linear prediction
auditory           auditory filterbank
postaud            post processing for auditory filterbank
write              write feature file
read               read feature file
split              take coefficients  ..  of source feature
cut                take frames  ..  of source feature
flip               take last frames first
delta              symmetrical delta coefficients: x(t+delta) - x(t-delta)
shift              shift frames: x(t+delta)
adjacent           put adjacent frames together: x(t-delta), x(t+1-delta), ..., x(t+delta)
lin                m * source_feature + a
log                m * log(source_feature + a)
alog               m * log(source_feature + b) with b=max/10^a
exp                m * exp(a * source_feature)
pow                m * (source_feature ^ a)
maxarg             index of maximum value per frame
meanarg            mean index per frame
aspike             remove spikes from signal
offset             remove offset adaptively from signal
filter             filter a feature
VTLN               Vocal Tract Length Normalization(VTLN)
normframe          normalize each frame
mean               calculate mean and variance
meansub            meansubtraction and variance normalisation
normalize          normalize coefficients to range  .. 
thresh             set coefficients to a specified value if they exceed a threshold
beepSeg            segment (spectral) feature at beeper positions
silSeg             segment (spectral) feature at silence positions
add                add two features: a * featureA + b * featureB
mul                multiply two features: a * featureA * featureB
matmul             multiply matrix A with each frame x of feature: A * x
filterbank         multiply band matrix A with each frame x of feature: A * x
concat             concat frames (or samples) of features
merge              merge coefficients (interleave samples) of features

TCL-DEFINED METHODS

eval               run feature description script (featureSetEval)
show               show feature set (featshow)
access             preprocess feature evaluation parameters (featureSetAccess)