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
oscilloEQ
Shows a multipanel plot of a time wave displaying the oscillogram of a bank of frequency filters like in an 'equalizer'.
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
lts
Long-term spectrogram
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
specflux
Compute spectral flux
simspec
Similarity between two frequency spectra
scd
Soundscape chord diagram
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
TFSD
normalized Time and Frequency Second Derivative
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
audiomoth
Reading and interpreting Audiomoth file name
audiomoth.rename
Rename audiomoth files in a readable format
beep
Beep sound
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
gammatone
Generate gammatone filter in the time domain (impulse response)
mel
Hertz / Mel conversion
meandB
Mean of dB values
micsens
Microphone sensitivity
moredB
Addition of dB values
octaves
Octaves series
read.audacity
Read audio markers as exported by Audacity
rms
Root Mean Square
seedata
A quick look at quantitative data
songmeter
Reading and interpreting SongMeter file name
songmeterdiag
Songmeter file diagnostics and diagram
wasp
WAve length and SPeed of sound
wav2dBSPL
Convert wave amplitude to instantaneous sound pressure level (dB SPL)
wav2leq
Convert wave amplitude to equivalent continuous sound pressure level (Leq)
write.audacity
Write audio markers to be imported by Audacity