Re: [alsa-devel] Testing play and record simultaneously.

At Wed, 25 Jul 2007 15:32:12 +0530, Pharaoh . wrote:

Very naive questions.

1. I want to test the recording using arecord, but how will I make

sure that the data is actually being recorded? I mean is there any way of storing the data recorded, say in a file? Off course there must be some way, its just that I dont know it. Can some one throw some light on this?

What's wrong with "arecord somefile.wav" ? You may need more parameters, depending on the hardware, of course.

2. Also, I want to test my card in full duplex mode as well, i.e.

playing and recording simultaneously. How can test this using aplay and arecord?

A simple one would be:

arecord | aplay

This isn't optimal, but mostly works as a test.

Takashi