beat: Generate beat

In tatters/soundgen: Sound Synthesis and Acoustic Analysis

Generate beat

Description

Generates percussive sounds from clicks through drum-like beats to sliding tones. The principle is to create a sine wave with rapid frequency modulation and to add a fade-out. No extra harmonics or formants are added. For this specific purpose, this is vastly faster and easier than to tinker with soundgen settings, especially since percussive syllables tend to be very short.

Usage

beat(
  nSyl = 10,
  sylLen = 200,
  pauseLen = 50,
  pitch = c(200, 10),
  samplingRate = 16000,
  fadeOut = TRUE,
  play = FALSE
)

Arguments

nSyl	the number of syllables to generate
sylLen	average duration of each syllable, ms
pauseLen	average duration of pauses between syllables, ms
pitch	fundamental frequency, Hz - a vector or data.frame(time = ..., value = ...)
samplingRate	sampling frequency, Hz
fadeOut	if TRUE, a linear fade-out is applied to the entire syllable
play	if TRUE, plays the synthesized sound using the default player on your system. If character, passed to play as the name of player to use, eg "aplay", "play", "vlc", etc. In case of errors, try setting another default player for play

Value

Returns a non-normalized waveform centered at zero.

See Also

soundgen generateNoise fart

Examples

playback = c(TRUE, FALSE)[2]
# a drum-like sound
s = beat(nSyl = 1, sylLen = 200,
         pitch = c(200, 100), play = playback)
# plot(s, type = 'l')

# a dry, muted drum
s = beat(nSyl = 1, sylLen = 200,
         pitch = c(200, 10), play = playback)

# sci-fi laser guns
s = beat(nSyl = 3, sylLen = 300,
         pitch = c(1000, 50), play = playback)

# machine guns
s = beat(nSyl = 10, sylLen = 10, pauseLen = 50,
         pitch = c(2300, 300), play = playback)

tatters/soundgen documentation built on Aug. 22, 2023, 4:24 p.m.