calc.fm {callsync}

calc.fm

Description

Calculates the frequency modulation for a wave object and returns several measurements in a data frame.

Usage

calc.fm(trace, min_height = 8, plot_it = FALSE)

Arguments

trace

numeric vector, e.g., the fundamental frequency from 'trace.fund', NOTE this would be 'trace$fund' and not the whole 'trace' object.

min_height

the minimum difference between a bottom and a peak for an infliction point to be accepted.

plot_it

logical, if 'TRUE' plot the trace and peaks to current window. Default is 'FALSE'.

Value

Returns a data frame with fm = median difference between peaks and bottoms and ipi = inter peak, np = number of peaks. interval (s).

Examples

require(callsync)
require(seewave)
require(tuneR)
path_git = 'https://raw.githubusercontent.com'
path_repo = '/simeonqs/callsync/master/tests/testthat/files'
file_1 = '/wave_1.wav'
url_1 = paste0(path_git, path_repo, file_1)
local_file_1 = paste(tempdir(), file_1, sep = '/')
if(!file.exists(local_file_1))
  download.file(url_1, destfile = local_file_1, mode = 'wb',)
wave = readWave(local_file_1)
trace = trace.fund(wave)
result = calc.fm(trace$fund)