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seewave (version 2.2.4)

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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Version

Install

install.packages('seewave')

Monthly Downloads

3,000

Version

2.2.4

License

GPL (>= 2)

Maintainer

Jerome Sueur

Last Published

August 19th, 2025

Functions in seewave (2.2.4)

Amplitude filter

Add or insert a silence section

Water tank minimum resonant and cutoff frequencies

Generate sound intensity attenuation data

Brigthness, Standard Deviation time plot

Amplitude modulation analysis of a time wave

Short-term autocorrelation of a time wave

Reading and interpreting Audiomoth file name

audiomoth.rename

Rename audiomoth files in a readable format

2D-cepstrogram of a time wave

Convert sound pressure level in other units

Covariance between two spectrograms

Cross-correlation between two frequency spectra

Butterworth frequency filter

Continuous coherence function between two time waves

Cross-correlation between two time wave envelopes

Cepstrum or real cepstrum

Coherence between two time waves

Crest factor and visualization

Continuous spectral entropy

Difference between two amplitude envelopes

Cut a section of a time wave

Cut a frequency spectrum

Delete a section of a time wave

dB colour scale for a spectrogram display

Difference between two cumulative frequency spectra

Dominant frequency of a time wave

Duration of a time wave

Difference between two frequency spectra

Draw the amplitude envelope of a time wave

Difference between two time waves

Draw the amplitude profile of a frequency filter

Dynamic sliding spectrogramn

Dynamic oscillogram

Time series discretisation

Dynamic sliding spectrum

Frequency modulation analysis

Amplitude envelope of a time wave

Export sound data

Near field and far field limits

Frequency filter

Fade in and fade out of a time wave

Frequency bands plot

Hilbert transform and analytic signal

Inverse of the short-term Fourier transform

Finite Impulse Response filter

Frequency peak detection

Gammatone filter

Kullback-Leibler distance

Instantaneous frequency

Itakuro-Saito distance

Play a sound wave

2D-spectrogram of a time wave using ggplot2

Fundamental frequency track

Log-spectral distance

Microphone sensitivity and conversion

Mean of dB values

Kolmogorov-Smirnov distance

Local maximum frequency peak detection

Mel-filter bank for MFCC computation

Linear Frequency Shift

Mean frequency spectrum of a time wave

Paste a time wave to another one

Play a list of sound files

Oscillogram 'equalizer'

Replace time wave data by 0 values

Repeat a time wave

Similarity between two frequency spectra

Spectral Flatness Measure

Save a .wav file

Addition of dB values

Frequency of a muscical note

Root Mean Square

Remove the amplitude modulations of a time wave

A quick look at quantitative data

Shannon and Renyi spectral entropy

Calling song of the tree cricket Oecanthus pellucens

Show a stereo time wave as oscillograms

Song of the cicada Cicada orni

Spectral properties

Time measurements of a time wave

Sound analysis and synthesis

Fourier transform windows

Time reverse of a time wave

2D-spectrogram of a time wave

Phase-phase 2D plot of a time wave

3D-spectrogram of a time wave

Frequency square filter

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

Soundcape chord diagram

Resample a time wave

Temporal entropy

Set the amplitude envelope of a time wave to another one

Long-term spectrogram

A function to tentativily smooth a time wave

Audacity audio markers import

Soundscape frequency spectrum of a time wave

Zero-crossing rate

Hertz / Mel conversion

Pre-emphasis speech filter

Song of the bird Zonotrichia capensis

Audacity audio markers export

Reading and interpreting SongMeter file name

Song of the bird Vanellus vanellus

seewave-internal

Internal Seewave Functions

Frequency spectrum of a time wave

Synthesis of time wave (additive model)

Generate rectangle pulse

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

Songmeter file diagnostics and diagram

Rugosity of a time wave

Zap silence periods of a time wave

Waterfall display

Standard deviation of dB values

wav-flac file conversion

Synthesis of time wave (tonal model)

Instantaneous frequency of a time wave by zero-crossing

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

Symbol analysis of a numeric (time) series

Show a time wave as an oscillogram

Roughness or total curvature

WAve length and SPeed of sound

Remove the offset of a time wave