Capture/Record Audio in Linux for Milliseconds

Question

arecord -d 10 sample.wav

Here, this command will record sample.wav as a 10 second wave file.

From,

• http://linuxcommand.org/man_pages/arecord1.html
• http://linux.die.net/man/1/arecord

Here, in arecord, for duration (parameter -d) only second can be used.

But for my project, I need to record for 600 milliseconds or 2700 milliseconds. Here, is there any way to use millisecond or microsecond?

Do I need to modify ALSA code to achieve this?

Answer 1

You need to change arecord's source code (aplay.c in the alsa-utils package) to change the type and the parsing of the timelimit variable.