From: "Gonzalo Garramuño" <ggarra13@gmail.com>
To: alsa-devel@alsa-project.org
Cc: Clemens Ladisch <clemens@ladisch.de>
Subject: Re: Switching from default to plughw:0,0
Date: Sun, 11 Sep 2016 14:40:53 -0300 [thread overview]
Message-ID: <a479dadf-8028-b717-bec9-d27ffed396ca@gmail.com> (raw)
In-Reply-To: <18fe27d1-5962-16fd-f0f0-d6bf0fb95444@ladisch.de>
El 11/09/16 a las 07:58, Clemens Ladisch escribió:
> When PulseAudio is configured as the default, it can be accessed through the ALSA API.
How exactly?
>
> Anyway, the correct name for the default device is "default".
>
> To get a list of devices, see "aplay -L".
Here's the output of aplay -L
$ aplay -L
default
Playback/recording through the PulseAudio sound server
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
sysdefault:CARD=PCH
HDA Intel PCH, ALC1150 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Front speakers
surround21:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Digital
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Direct sample mixing device
dmix:CARD=PCH,DEV=1
HDA Intel PCH, ALC1150 Digital
Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Direct sample snooping device
dsnoop:CARD=PCH,DEV=1
HDA Intel PCH, ALC1150 Digital
Direct sample snooping device
hw:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Direct hardware device without any conversions
hw:CARD=PCH,DEV=1
HDA Intel PCH, ALC1150 Digital
Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Hardware device with all software conversions
plughw:CARD=PCH,DEV=1
HDA Intel PCH, ALC1150 Digital
Hardware device with all software conversions
hdmi:CARD=NVidia,DEV=0
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
HDA NVidia, HDMI 1
HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
HDA NVidia, HDMI 2
HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
HDA NVidia, HDMI 3
HDMI Audio Output
dmix:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct sample mixing device
dmix:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Direct sample mixing device
dmix:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Direct sample mixing device
dmix:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Direct sample mixing device
dsnoop:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Direct sample snooping device
dsnoop:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Direct sample snooping device
hw:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Direct hardware device without any conversions
plughw:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Hardware device with all software conversions
>
> Regards,
> Clemens
Thanks, Clemens. My code works with the "default" device. On the
gnome-control-center, I am able to switch the default device and all
works fine.
My problem is when I want my program to specify the device to use
directly from the GUI: plughw:0,0. The device is in control of
pulseaudio and does not release it until about 7 seconds go by with no
audio. I tried a similar set up in vlc and the result was the same (vlc
reported that it could not open the device), so I know it is not my code.
Let me know how can I control pulseaudio to close immediately the
virtual device it opens.
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prev parent reply other threads:[~2016-09-11 17:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-10 23:33 Switching from default to plughw:0,0 Gonzalo Garramuño
2016-09-10 23:46 ` Clemens Ladisch
2016-09-11 1:20 ` Gonzalo Garramuño
[not found] ` <19f3ac8e-cd79-2b03-824f-330350c5bc82@gmail.com>
2016-09-11 10:58 ` Clemens Ladisch
2016-09-11 17:40 ` Gonzalo Garramuño [this message]
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