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seewave (version 2.1.0)

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.

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Install

install.packages('seewave')

Monthly Downloads

3,671

Version

2.1.0

License

GPL (>= 2)

Maintainer

Jerome Sueur

Last Published

March 2nd, 2018

Functions in seewave (2.1.0)

Acoustic Complexity Index

Median of the amplitude envelope

Teager-Kaiser energy tracking operator

Resonance quality factor of a frequency spectrum

Difference between two time waves

Coherence between two time waves

2D-cepstrogram of a time wave

Cut a section of a time wave

dB colour scale for a spectrogram display

Time series discretisation

Difference between two amplitude envelopes

Statistics on time and frequency STFT contours

Short-term autocorrelation of a time wave

Add or insert a silence section

Dynamic sliding spectrum

Butterworth frequency filter

Continuous coherence function between two time waves

Cepstrum or real cepstrum

Dynamic sliding spectrogramn

Difference between two frequency spectra

Export sound data

Continuous spectral entropy

Cut a frequency spectrum

Fade in and fade out of a time wave

Draw the amplitude profile of a frequency filter

Hilbert transform and analytic signal

Draw the amplitude envelope of a time wave

Instantaneous frequency

Finite Impulse Response filter

Kullback-Leibler distance

Kolmogorov-Smirnov distance

Frequency bands plot

Frequency of a muscical note

Frequency filter

Convert sound pressure level in other units

Near field and far field limits

Frequency modulation analysis

Song of the bird Vanellus vanellus

Amplitude modulation analysis of a time wave

Calling song of the tree cricket Oecanthus pellucens

Linear Frequency Shift

Cross-correlation between two time wave envelopes

Generate sound intensity attenuation data

Delete a section of a time wave

Cross-correlation between two frequency spectra

Roughness or total curvature

Rugosity of a time wave

Sound analysis and synthesis

Play a sound wave

Duration of a time wave

Fundamental frequency track

Dynamic oscillogram

Hertz / Mel conversion

Set the amplitude envelope of a time wave to another one

Mel-filter bank for MFCC computation

Show a stereo time wave as oscillograms

Paste a time wave to another one

Mean of dB values

2D-spectrogram of a time wave using ggplot2

Mean frequency spectrum of a time wave

Remove the amplitude modulations of a time wave

Song of the cicada Cicada orni

Show a time wave as an oscillogram

Local maximum frequency peak detection

Dominant frequency of a time wave

Symbol analysis of a numeric (time) series

Generate rectangle pulse

Synthesis of time wave (additive model)

Log-spectral distance

Difference between two cumulative frequency spectra

Repeat a time wave

Time reverse of a time wave

Resample a time wave

Waterfall display

Similarity between two frequency spectra

Microphone sensitivity and conversion

Zap silence periods of a time wave

Soundscape frequency spectrum of a time wave

Frequency peak detection

Amplitude envelope of a time wave

A function to tentativily smooth a time wave

Fourier transform windows

Reading and interpreting SongMeter file name

Inverse of the short-term Fourier transform

Frequency square filter

Addition of dB values

Instantaneous frequency of a time wave by zero-crossing

Itakuro-Saito distance

Play a list of sound files

Short-term Fourier transform using fftw and libsndfile C libraries

Synthesis of time wave (tonal model)

Pre-emphasis speech filter

Temporal entropy

Remove the offset of a time wave

Replace time wave data by 0 values

Root Mean Square

A quick look at quantitative data

Zero-crossing rate

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

Phase-phase 2D plot of a time wave

Save a .wav file

seewave-internal

Internal Seewave Functions

Standard deviation of dB values

Spectral Flatness Measure

2D-spectrogram of a time wave

3D-spectrogram of a time wave

WAve length and SPeed of sound

wav-flac file conversion

Shannon and Renyi spectral entropy

Frequency spectrum of a time wave

Spectral properties

Time measurements of a time wave

Song of the bird Zonotrichia capensis

Acoustic Richness index

Amplitude filter

Water tank minimum resonant and cutoff frequencies

Covariance between two spectrograms

Crest factor and visualization

Symbolic Aggregate approXimation

Normalized Difference Soundscape Index