Concatenate Audio Files with Exact Silence Gaps
Description
Joins inputs in order into one audio file, inserting gap
seconds of silence between consecutive inputs and tail seconds after
the last. Every input is resampled and remixed to a common format first, so
inputs need not match. One encode, chosen by the output extension.
Usage
audio_concat(inputs, output, gap = 0, tail = 0, sample_rate = NULL,
channels = NULL, bitrate = NULL, overwrite = TRUE, dry_run = FALSE)
Arguments
inputs: Character vector of audio file paths, in order.output: Path for the output audio file; extension selects the format.gap: Silence in seconds between consecutive inputs (default 0).tail: Silence in seconds appended after the last input (default 0).sample_rate: Output sample rate in Hz, or NULL (default) to use the first input’s rate.channels: Output channel count (1 = mono, 2 = stereo), or NULL (default) to use the first input’s count.bitrate: Output audio bitrate (e.g. “192k”), or NULL for the encoder default. Ignored by lossless formats such as WAV.overwrite: If TRUE (default), overwrite the output file.dry_run: If TRUE, return the FFmpeg command without executing.
Value
Invisibly returns the output path. If dry_run, returns the command string.
Examples
audio_concat(c("slide01.wav", "slide02.wav"), "audio.mp3",
gap = 0.35, tail = 0.5)