documents

demo

functions help


internal
seewave Time wave analysis and graphical representation
 
interface
export Export sound data
playlist To run aplaylist of sound files
listen Play a sound wave
savewav Save .wav file
sox Call externally SoX
wav2flac wav-flac file conversion
 
data
orni Song of the cicada Cicada orni
peewit Song of the bird Vanellus vanellus
pellucens Calling song of the tree cricket Oecanthus pellucens
sheep Sheep bleat
tico Song of the bird Zonotrichia capensis
 
edition
addsilw Add or insert a silence section
cutw Cut a section of a time wave
deletew Delete a section of a time wave
mutew Replace time wave data by 0 values
pastew Paste a time wave to another one
repw Repeat a time wave
resamp Resample a time wave
revw Time reverse of a time wave
rmoffset Remove the offset of a time wave
zapsilw Zap silence periods of a time wave
 
time / amplitude
acoustat Statistics on time and frequency STFT contours
ama Amplitude modulation analysis of a time wave
corenv Cross-correlation between two time wave envelopes
crest Crest factor
diffenv Difference between two amplitude envelopes
diffwave Difference between two time waves
drawenv Draw the amplitude envelope of a time wave
dynoscillo Dynamic oscillogram
env Amplitude envelope of a time wave
M Amplitude index
oscillo Shows a time wave as an oscillogram
oscilloST Shows a stereo time wave as oscillograms
phaseplot Shows 1st, 2nd and 3rd derivatives of a wave
phaseplot2 Shows a time wave against a delayed version of itself
roughness Roughness of a curve (a time wave or a spectrum)
rugo Rugosity of a time wave or time series
setenv Set the amplitude envelope of a time wave to another one
timer Time measurements of a time wave
th Temporal entropy
TKEO Teager-Kaiser Energy Operator
 
frequency
acoustat Statistics on time and frequency STFT contours
autoc Short-term autocorrelation of a time wave
bwfilter Butterworth frequency filter
ccoh Continuous coherence function between two time waves
ceps Cepstrum or real cepstrum
cepstro 2D-cepstrogram of a time wave
combfilter Frequecncy comb filter
coh Coherence between two time waves
corspec Cross-correlation between two frequency spectra
covspectro Covariance between two spectrograms
csh Continuous spectral entropy
cutspec Cut a frequency spectrum
dfreq Dominant frequency of a time wave
diffcumspec Difference between two cumulated frequency spectra
diffspec Difference between two frequency spectra
diffwave Difference between two time waves
discrets Discretisation of a numeric (time) series
drawfilter Draw the profile of a frequency filter
dynspec Dynamic sliding spectrum
dynspectro Dynamic sliding spectrogram
fbands Frequency bands plot (equalizer plot)
ffilter Frequency filter
fma Frequency modulation analysis
fpeaks Frequency peaks detection
ftwindow Fourier transform windows
fund Fundamental frequency
ggspectro 2D-spectrogram of a time wave with ggplot2
H Total entropy
hilbert Hilbert transform and analytic signal
ifreq Instantaneous frequency
itakura.dist Itakura-Saito distance
kl.dist Kullback-Leibler distance
ks.dist Kolmogorov-Smirnov distance
localpeaks Local maximum frequency peak detection
logspec.dist Log-spectral distance
meanspec Mean frequency spectrum of a time wave
melfilterbank Mel-frequency filter bank
NDSI Normalized Difference Soundscape Index
notefreq Frequency of a musical note
preemphasis Preemphasis frequency filter
Q Resonance quality factor of a frequency spectrum
roughness Roughness of a curve (a time wave or a spectrum)
SAX Symbolic Aggregate approXimation
sfm Spectral Flatness Measure
sh Spectral entropy
simspec Similarity between two frequency spectra
soundscapespec Soundscape frequency spectrum of a time wave
spec Frequency spectrum of a time wave
specprop Spectral properties
spectro 2D-spectrogram of a time wave
spectro3D 3D-spectrogram of a time wave
squarefilter Frequecncy square filter
stft.ext Short-term Fourier transform using external C libraries
symba Symbol analysis
wf Waterfall display
zc Instantaneous frequency of a time wave by zero-crossing
zcr Zero-crossing rate
 
synthesis, modifications
afilter Amplitude filter
echo Echo generator
fadew Fade in and fade out of a time wave
fdoppler Doppler effect
fir Finite Impulse Response filter
lfs Linear Frequency Shift
noisew Generate noise
pulse Generate rectangle pulse
rmam Remove the amplitude modulations of a time wave
rmnoise Remove gaussian noise
synth Synthesis of time wave (additive model)
synth Synthesis of time wave (tonal model)
 
alpha indices
ACI Acoustic Complexity Index
AR Acoustic Richness index
M Amplitude index
roughness Roughness of a curve (a time wave or a spectrum)
rugo Rugosity of a time wave or time series
th Temporal entropy
fpeaks Frequency peaks detection
H Total entropy
NDSI Normalized Difference Soundscape Index
roughness Roughness of a curve (a time wave or a spectrum)
sfm Spectral Flatness Measure
specprop Spectral properties
 
beta indices
diffenv Difference between two amplitude envelopes
diffcumspec Difference between two cumulated frequency spectra
diffspec Difference between two frequency spectra
diffwave Difference between two time waves
itakura.dist Itakura-Saito distance
kl.dist Kullback-Leibler distance
ks.dist Kolmogorov-Smirnov distance
logspec.dist Log-spectral distance
simspec Similarity between two frequency spectra
 
extra
attenuation Generate sound intensity attenuation data
convSPL Convert sound pressure level in other units
dBscale dB colour scale for a spectrogram display
dBweight dB weightings
field Near field and far field limits
mel Hertz / Mel conversion
meandB Mean of dB values
micsens Microphone sensitivity
moredB Addition of dB values
octaves Octaves series
rms Root Mean Square
seedata A quick look at quantitative data
wasp WAve length and SPeed of sound