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afplay:tldr:350d6
afplay: Play a sound file at 2x speed (playback rate).
$ afplay --rate ${2} ${filename}
try on your machine
The command "afplay --rate ${2} ${filename}" is used to play an audio file with a specified playback rate. Let's break down the components:
- "afplay" is a command-line utility on macOS that allows you to play audio files.
- "--rate" is an option that specifies the playback rate for the audio file.
- "${2}" is a parameter that represents the value provided as the second argument when running the command. It could be any numeric value that determines the playback rate.
- "${filename}" is another parameter that represents the name or path of the audio file you want to play.
When executing the command, the value of "${2}" will determine the rate at which the audio file is played. For example, if you run the command "afplay --rate 1.5 music.mp3", it will play the "music.mp3" file at a rate of 1.5 times its original speed. Similarly, a value of 0.5 would play the audio at half speed.
Note that this command is specific to macOS and may not work on other operating systems without adjustments.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.