Thread: ALSA for audio
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Old February 16th 13, 11:21 AM posted to uk.comp.os.linux,uk.rec.audio
Davey
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Posts: 34
Default ALSA for audio

On Fri, 15 Feb 2013 14:11:17 +0000 (GMT)
Jim Lesurf wrote:

arecord

Ok, here is what I found out. Bear in mind I have never used arecord,
only aplay. Both of my TV encoders work fine with their respective WIN
7 programs, so that is how I use them, I never succeeded in getting
either of them to work with Linux. With a lot more time, maybe I would
be able to. Maybe.
So, still in Ubuntu 10.04, I ran aplay -l and aplay -L, and
arecord -l, and arecord -L, before inserting the EZCap into a USB port.

aplay -L with the EZCap added the line:

iec958:CARD=U0xeb1a0x2861,DEV=0
USB Device 0xeb1a:0x2861, USB Audio
IEC958 (S/PDIF) Digital Audio Output

arecord -l added:

card 2: U0xeb1a0x2861 [USB Device 0xeb1a:0x2861], device 0: USB Audio
[USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0

This sounds to me as though the device is being seen and recognised.
Volume Control Sound Preferences also shows it as:
2861 / 1 Input / Analog Stereo Input, which is good.

alsamixer shows one L R CAPTURE volume bar whether or not the
device is plugged in, so it is probably referring to an internal
device, such as the internal Intel soundcard. If so, where is the USB
device?
I now need to work out what arecord instruction to give to record
something, but I need to do some reading for that.
Just tried a basic arecord, and whatever I do, it returns:
arecord: main:608: audio open error: No such file or directory

Got other stuff to do, back to this later.

--
Davey.