Hello,
I am new with Linux, I have Lubuntu 20.04 LTS and a XONAR DX sound card, which is a 7.1 card.
In order to to enable all channels for Pulseaudio, I edit /etc/pulse/daemon.conf: uncomment the default-sample-channels line and set the value to 8, like written here:
https://wiki.archlinux.org/index.php..._sound_systems
I have two questions:
1)With command "speaker-test -c8" the sound comes correctly from front,side,rear,central,lfe sound card outputs, but always with no separation for right and left.
Also with youtube left-right tests there is never left/right separation, but the sound comes from both left and right.
I've tried several speakers, headphone, always with the same result, why?
2)I would like to get 8 independent channels, is it my setting in daemon.conf just enough or not?
This is the "aplay - l" command result:
$ aplay -l
**** Lista di PLAYBACK dispositivi hardware ****
scheda 0: DX [Xonar DX], dispositivo 0: Multichannel [Multichannel]
Sottoperiferiche: 0/1
Sottoperiferica #0: subdevice #0
scheda 0: DX [Xonar DX], dispositivo 1: Digital [Digital]
Sottoperiferiche: 1/1
Sottoperiferica #0: subdevice #0
This is the "pacmd list-sinks" command result:
~$ pacmd list-sinks
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_05_04.0.analog-surround-71>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: RUNNING
suspend cause: (none)
priority: 9039
volume: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB, rear-left: 65536 / 100% / 0,00 dB, rear-right: 65536 / 100% / 0,00 dB, front-center: 65536 / 100% / 0,00 dB, lfe: 65536 / 100% / 0,00 dB, side-left: 65536 / 100% / 0,00 dB, side-right: 65536 / 100% / 0,00 dB
balance 0,00
base volume: 65536 / 100% / 0,00 dB
volume steps: 65537
muted: no
current latency: 55,87 ms
max request: 56 KiB
max rewind: 56 KiB
monitor source: 0
sample spec: s16le ch 8 48000 Hz
channel map: front-left,front-right,rear-left,rear-right,front-center,lfe,side-left,side-right
Surround 7.1
used by: 1
linked by: 2
configured latency: 75,00 ms; range is 0,50 .. 1365,33 ms
card: 0 <alsa_card.pci-0000_05_04.0>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "Multichannel"
alsa.id = "Multichannel"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "Xonar DX"
alsa.long_card_name = "Asus Virtuoso 100 at 0xd000, irq 21"
alsa.driver_name = "snd_virtuoso"
device.bus_path = "pci-0000:05:04.0"
sysfs.path = "/devices/pci0000:00/0000:00:13.3/0000:04:00.0/0000:05:04.0/sound/card0"
device.bus = "pci"
device.vendor.id = "13f6"
device.vendor.name = "C-Media Electronics Inc"
device.product.id = "8788"
device.product.name = "CMI8788 [Oxygen HD Audio] (Virtuoso 100 (Xonar DX))"
device.string = "surround71:0"
device.buffering.buffer_size = "1048576"
device.buffering.fragment_size = "1048576"
device.access_mode = "mmap+timer"
device.profile.name = "analog-surround-71"
device.profile.description = "Analog Surround 7.1"
device.description = "CMI8788 [Oxygen HD Audio] (Virtuoso 100 (Xonar DX)) Analog Surround 7.1"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output: Uscita analogica (priority 9900, latency offset 0 usec, available: unknown)
properties:
active port: <analog-output>