I recently bought a wired USB headset with 7.1 virtual surround, which, according to the manufacturer, supports GNU/Linux and Chrome OS too. According to what I read on the comments, Windows users seem to be happy with the virtual surround feature, and I'd like to have the same on Ubuntu MATE 22.04.1. The problem is that it is only recognized as stereo (Pavucontrol shows only front left and front right channels for "USB PnP Audio Device Digital Stereo (IEC958)" and the port is listed as "Digital Output (S/PDIF)") and I couldn't find a way to play my files with AC-3 sound in 5.1, they're all downmixed to stereo. In the Output Devices tab of Pulse Audio Volume Control, I ticked the AC-3 checkbox in the Advanced settings for this device, but that didn't help.
In lsusb it the headset appears as
Bus 003 Device 015: ID 0c76:161f JMTek, LLC. USB PnP Audio Device
On [Linux Hardware][1] database, it appears this is a rather common headset.
The alsamixer command, after choosing the appropriate sound card, shows the following:
[alsamixer screenshot][2]
Any help would be really appreciated, please give me my 5.1 virtual surround. Below you can find some command outputs in order to provide more information.
Here's the output of aplay -l
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 0: ALC3227 Analog [ALC3227 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 2: Device [USB PnP Audio Device], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
Here's the output of aplay -L
$ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default
Playback/recording through the PulseAudio sound server
samplerate
Rate Converter Plugin Using Samplerate Library
speexrate
Rate Converter Plugin Using Speex Resampler
jack
JACK Audio Connection Kit
oss
Open Sound System
pulse
PulseAudio Sound Server
upmix
Plugin for channel upmix (4,6,8)
vdownmix
Plugin for channel downmix (stereo) with a simple spacialization
hw:CARD=HDMI,DEV=3
HDA ATI HDMI, HDMI 0
Direct hardware device without any conversions
plughw:CARD=HDMI,DEV=3
HDA ATI HDMI, HDMI 0
Hardware device with all software conversions
hdmi:CARD=HDMI,DEV=0
HDA ATI HDMI, HDMI 0
HDMI Audio Output
dmix:CARD=HDMI,DEV=3
HDA ATI HDMI, HDMI 0
Direct sample mixing device
usbstream:CARD=HDMI
HDA ATI HDMI
USB Stream Output
hw:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
Direct hardware device without any conversions
plughw:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
Hardware device with all software conversions
sysdefault:CARD=Generic
HD-Audio Generic, ALC3227 Analog
Default Audio Device
front:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
Front output / input
surround21:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
2.1 Surround output to Front and Subwoofer speakers
surround41:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
5.0 Surround output to Front, Center and Rear speakers
surround71:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
dmix:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
Direct sample mixing device
usbstream:CARD=Generic
HD-Audio Generic
USB Stream Output
surround51:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
Downmix to stereo 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround40:CARD=Generic,DEV=0
HD-Audio Generic, ALC3227 Analog
Downmix to stereo 4.0 Surround output to Front, Center, Rear and Subwoofer speakers
hw:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
Direct hardware device without any conversions
plughw:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
Hardware device with all software conversions
sysdefault:CARD=Device
USB PnP Audio Device, USB Audio
Default Audio Device
front:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
Front output / input
surround21:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround41:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround71:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
Direct sample mixing device
usbstream:CARD=Device
USB PnP Audio Device
USB Stream Output
surround51:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
Downmix to stereo 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround40:CARD=Device,DEV=0
USB PnP Audio Device, USB Audio
Downmix to stereo 4.0 Surround output to Front, Center, Rear and Subwoofer speakers```
[1]: http://linux-hardware.org/?id=usb:0c76-161f
[2]: https://i.stack.imgur.com/9lAwM.gif
