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seewave (version 2.2.3)

Sound Analysis and Synthesis

Description

Functions for analysing, manipulating, displaying, editing and synthesizing time waves (particularly sound). This package processes time analysis (oscillograms and envelopes), spectral content, resonance quality factor, entropy, cross correlation and autocorrelation, zero-crossing, dominant frequency, analytic signal, frequency coherence, 2D and 3D spectrograms and many other analyses. See Sueur et al. (2008) and Sueur (2018) .

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Install

install.packages('seewave')

Monthly Downloads

3,607

Version

2.2.3

License

GPL (>= 2)

Maintainer

Last Published

October 19th, 2023

Functions in seewave (2.2.3)

Acoustic Complexity Index

Median of the amplitude envelope

Add or insert a silence section

Water tank minimum resonant and cutoff frequencies

Normalized Difference Soundscape Index

Amplitude modulation analysis of a time wave

Continuous coherence function between two time waves

Amplitude filter

Cepstrum or real cepstrum

Acoustic Richness index

audiomoth.rename

Rename audiomoth files in a readable format

Resonance quality factor of a frequency spectrum

Teager-Kaiser energy tracking operator

Statistics on time and frequency STFT contours

Butterworth frequency filter

Cut a section of a time wave

dB colour scale for a spectrogram display

Generate sound intensity attenuation data

Crest factor and visualization

Cross-correlation between two time wave envelopes

Covariance between two spectrograms

Convert sound pressure level in other units

Reading and interpreting Audiomoth file name

Duration of a time wave

Delete a section of a time wave

Difference between two amplitude envelopes

Cross-correlation between two frequency spectra

2D-cepstrogram of a time wave

Coherence between two time waves

Draw the amplitude envelope of a time wave

Dynamic oscillogram

Difference between two time waves

Frequency peak detection

Continuous spectral entropy

Fourier transform windows

Short-term autocorrelation of a time wave

2D-spectrogram of a time wave using ggplot2

Time series discretisation

Dominant frequency of a time wave

Draw the amplitude profile of a frequency filter

Hilbert transform and analytic signal

Cut a frequency spectrum

Difference between two frequency spectra

Frequency filter

Finite Impulse Response filter

Export sound data

Near field and far field limits

Instantaneous frequency

Fade in and fade out of a time wave

Difference between two cumulative frequency spectra

Inverse of the short-term Fourier transform

Hertz / Mel conversion

Amplitude envelope of a time wave

Mel-filter bank for MFCC computation

Dynamic sliding spectrum

Microphone sensitivity and conversion

Frequency modulation analysis

Frequency bands plot

Mean of dB values

Kolmogorov-Smirnov distance

Frequency of a muscical note

Dynamic sliding spectrogramn

Addition of dB values

Oscillogram 'equalizer'

Mean frequency spectrum of a time wave

Show a stereo time wave as oscillograms

Linear Frequency Shift

Resample a time wave

Repeat a time wave

Rugosity of a time wave

Paste a time wave to another one

Roughness or total curvature

Song of the bird Vanellus vanellus

Long-term spectrogram

Pre-emphasis speech filter

Log-spectral distance

Itakuro-Saito distance

Audacity audio markers import

Kullback-Leibler distance

Reading and interpreting SongMeter file name

Time reverse of a time wave

Song of the cicada Cicada orni

Show a time wave as an oscillogram

Play a list of sound files

Phase-phase 2D plot of a time wave

Spectral Flatness Measure

Replace time wave data by 0 values

Set the amplitude envelope of a time wave to another one

Root Mean Square

Remove the offset of a time wave

Remove the amplitude modulations of a time wave

seewave-internal

Internal Seewave Functions

Generate rectangle pulse

2D-spectrogram of a time wave

Standard deviation of dB values

Convert wave amplitude to equivalent continuous sound pressure level (Leq)

Songmeter file diagnostics and diagram

Spectral properties

Symbol analysis of a numeric (time) series

Waterfall display

Synthesis of time wave (additive model)

Fundamental frequency track

Time measurements of a time wave

Instantaneous frequency of a time wave by zero-crossing

Gammatone filter

A quick look at quantitative data

Sound analysis and synthesis

Frequency spectrum of a time wave

Zero-crossing rate

Play a sound wave

Song of the bird Zonotrichia capensis

Local maximum frequency peak detection

Synthesis of time wave (tonal model)

Convert wave amplitude to instantaneous sound pressure level (dB SPL)

Calling song of the tree cricket Oecanthus pellucens

Zap silence periods of a time wave

wav-flac file conversion

Shannon and Renyi spectral entropy

Soundscape frequency spectrum of a time wave

WAve length and SPeed of sound

Save a .wav file

Phase-phase 2D or 3D plot of a time wave

Temporal entropy

Audacity audio markers export

Soundcape chord diagram

Similarity between two frequency spectra

A function to tentativily smooth a time wave

Frequency square filter

3D-spectrogram of a time wave

normalized Time and Frequency Second Derivative

Symbolic Aggregate approXimation