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From: Jan Beich <jbeich@FreeBSD.org>
To: "Onno K." <onno.k@gmx.com>
Cc: Freebsd-multimedia@freebsd.org, freebsd-questions@freebsd.org
Subject: Re: How to capture audio with FreeBSD?
References: <trinity-b639b15a-c1a2-426d-b47a-69ab299dbcc3-1513171390323@3c-app-mailcom-bs16>
Date: Wed, 13 Dec 2017 15:17:33 +0100
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"Onno K." <onno.k@gmx.com> writes:

> # aplay -l
> aplay: device_list:273: no soundcards found...
> # arecord -l
> arecord: device_list:273: no soundcards found...

ALSA on FreeBSD doesn't support direct hardware access, it uses plugins
such as OSS, Jack, PulseAudio. Try instead:

$ pkg install ffmpeg
$ ffmpeg -f oss -i /dev/dsp foo.wav
<Type Q or Ctrl+C to quit>
$ ffmpeg -i foo.wav -f oss /dev/dsp
<Type Q or Ctrl+C to quit>