AudioTrim
AudioTrim[audio]
trims silence from the beginning and end of audio.
AudioTrim[audio,t]
returns the first t seconds of audio.
AudioTrim[audio,-t]
returns the last t seconds of audio.
AudioTrim[audio,{t1,t2}]
returns audio starting at time t1 and ending at time t2 of audio.
AudioTrim[audio,{{t11,t12},…}]
returns a list of audio for all given intervals {ti1,ti2}.
Details and Options
- AudioTrim can be used to trim silence or extract specific intervals from an audio object.
- AudioTrim can be used to either extract interesting parts of a recording or remove uninteresting parts, e.g. silence.
- Intervals with amplitudes below
are assumed to be silent. - The time t can be any of the following:
-
t time given in seconds Quantity[t,"unit"] time given in "unit" compatible with seconds Quantity[t,"Samples"] time given as number of samples - AudioTrim takes a Padding option. See the reference page for AudioPad for possible settings.
- In AudioTrim[audio,t], when t is longer than the duration of audio, by default no extra padding is introduced.
Examples
open all close allBasic Examples (1)
Scope (3)
Specify the amount of trimming using a time Quantity:
Applications (1)
Extract intervals that satisfy a condition:
Use AudioIntervals to look for segments with high RMS amplitude:
Properties & Relations (1)
Text
Wolfram Research (2016), AudioTrim, Wolfram Language function, https://reference.wolfram.com/language/ref/AudioTrim.html.
CMS
Wolfram Language. 2016. "AudioTrim." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/AudioTrim.html.
APA
Wolfram Language. (2016). AudioTrim. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/AudioTrim.html