![Forrest logo](/images/logo.png)
arecord:tldr:f78c4
The command "arecord" is a Linux command-line tool used for recording audio from various sources. Here's an explanation of each component of the given command:
-
"arecord": This is the command itself, used to invoke the "arecord" tool.
-
"-vv": This is an option used for verbose output. It provides additional debugging information, making the command's output more detailed and informative.
-
"--format=cd": This option specifies the audio format to be used, which is CD quality audio. CD audio typically has a sample rate of 44.1 kHz and a bit depth of 16-bit.
-
"${filename-wav}": This is an argument passed to the command, specifying the name of the output file. The "${filename-wav}" is a placeholder that should be replaced with the desired filename ending with ".wav". For example, if you want to name the file "audio.wav", you would replace "${filename-wav}" with "audio.wav".
Putting it all together, the command will use the arecord tool to record audio with verbose output, using the CD audio format, and save it to a file with the specified name and ".wav" extension.