On Thu, Sep 19, 2019 at 9:58 AM Walter Dnes <[email protected]> wrote:

> On Wed, Sep 18, 2019 at 09:14:44PM +0100, Mick wrote
>
> > Yes, you only have one card 0.  The first device (default) is the
> analogue.
> >
> > What does 'arecord -l' show?
>
> **** List of CAPTURE Hardware Devices ****
> card 0: PCH [HDA Intel PCH], device 0: CX20641 Analog [CX20641 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: PCH [HDA Intel PCH], device 2: CX20641 Alt Analog [CX20641 Alt
> Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> I don't run "desktop environments"; I run useful applications
>
>
I think for what you are trying to do, the capture devices/mic are not
relevant - there will be no signal on them. The playback device have the
signal, and ffmpeg needs to capture of those signals.

> -i hw:0,1
>
> or
>
> -i hw:0,0,1

  Both fail with No such file or directory.

FWIW audacity has a drop down list of the output devices, and on my system
they're all shown as hw:X,Y. There's no hw:X or hw:X,Y,Z. I also notice
that the same hw:X,Y is used for both an playback and capture device, so i
guess that means that '-i hw:0.1' is using the hw:0,1 capture device, which
for you has no signal, and therefore ffmpeg doesnt capture anything.

Hopefully there's some way to capture the output digitally, but if not, a
cable connecting the analogue out to the analogue in should work.

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