Date: Wed, 26 Jul 2017 13:18:29 -0300 From: Marcel Bonnet <marcelbonnet@gmail.com> To: Hans Petter Selasky <hps@selasky.org> Cc: FreeBSD multimedia <freebsd-multimedia@freebsd.org> Subject: Re: snd_uaudio monitor recording Message-ID: <CAPe0dBkDAAdYRSNsrAmu1Xq%2BU6gN_pZG0c22b1FRQrAJ-kK8iw@mail.gmail.com> In-Reply-To: <a567dbbb-c533-c450-828e-7207f46f7738@selasky.org> References: <CAPe0dB=wUyr4NZPxEDSfe7jh%2BiJ-17EpgfhJLFjqysV4DBshLw@mail.gmail.com> <a567dbbb-c533-c450-828e-7207f46f7738@selasky.org>
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On 25 July 2017 at 14:18, Hans Petter Selasky <hps@selasky.org> wrote:
>
> On 07/25/17 17:00, Marcel Bonnet wrote:
>>
>> Hi.
>>
>> I'd like to record to a file whatever the sound card is actually playing,
>> essentially when I am not using jackd server.
>> I don't know if I just did not figure how to do it, or if depends on a new
>> driver functionality ?
>> Thanks in advance,
>>
>
> You'd need to use virtual_oss to do that.
Thanks. But, I didn't understand how to use it. Can you help me, please?
I tried an example from the man page (I changed the sample rate,
because my USB Fast Track Pro is set to 44100 Hz):
[@machine tmp]$ virtual_oss -C 2 -c 2 -r 44100 -b 16 -s 1024 -f
/dev/dsp3.0 -w dsp.wav -d dsp
hw.snd.basename_clone: 1
sysctl: hw.snd.basename_clone=0: Operation not permitted
virtual_oss: Could not create CUSE DSP device
So, I tried with sudo:
[@machine tmp]$ sudo virtual_oss -C 2 -c 2 -r 44100 -b 16 -s 1024 -f
/dev/dsp3.0 -w dsp.wav -d dsp
hw.snd.basename_clone: 1 -> 0
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
virtual_oss: Could not open DSP device '/dev/dsp3.0': Device busy
I never know why I have so much /dev/dsp3.x units. When using jack
server, I always attach to the first one (3.0) and it is ok. I tried
the other 3.x units, with no success.
Thanks in advance.
My environment:
[@machine tmp]$ ls /dev/dsp* ; cat /dev/sndstat ; sysctl hw.snd.default_unit
/dev/dsp0.1 /dev/dsp1.1 /dev/dsp2.1 /dev/dsp3.0 /dev/dsp3.1
/dev/dsp3.2 /dev/dsp3.3
FreeBSD Audio Driver (64bit 2009061500/amd64)
Installed devices:
pcm0: <Realtek ALC269 (Analog)> on hdaa0 (1p:2v/1r:1v)
pcm1: <Realtek ALC269 (Analog)> on hdaa0 (1p:1v/1r:1v)
pcm2: <Intel Panther Point (HDMI/DP 8ch)> on hdaa1 (1p:1v/0r:0v)
pcm3: <USB audio> at ? kld snd_uaudio (1p:2v/1r:1v) default
No devices installed from userspace.
hw.snd.default_unit: 3
[@machine tmp]$ sysctl dev.pcm.3
dev.pcm.3.feedback_rate: 0
dev.pcm.3.bitperfect: 0
dev.pcm.3.buffersize: 0
dev.pcm.3.rec.vchanformat: s16le:2.0
dev.pcm.3.rec.vchanrate: 44100
dev.pcm.3.rec.vchanmode: fixed
dev.pcm.3.rec.vchans: 1
dev.pcm.3.play.vchanformat: s16le:2.0
dev.pcm.3.play.vchanrate: 44100
dev.pcm.3.play.vchanmode: fixed
dev.pcm.3.play.vchans: 2
dev.pcm.3.hwvol_mixer: vol
dev.pcm.3.hwvol_step: 5
dev.pcm.3.%parent: uaudio0
dev.pcm.3.%pnpinfo:
dev.pcm.3.%location:
dev.pcm.3.%driver: pcm
dev.pcm.3.%desc: USB audio
>
> --HPS
--
Marcel Bonnet
github.com/marcelbonnet/
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