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Re: Cm6206 Output
Posted: Mon Sep 01, 2025 12:59 pm
by alex124.rh
Can you please share this card with me and i will just use that for ease. Thanks. Couldn’t find any that work like that. Did you get music from all 4.1 ch without upmix on
Re: Cm6206 Output
Posted: Mon Sep 01, 2025 1:28 pm
by hudiy
We bought this card in a local electronics store. When connected via USB, it appears as “C-Media Electronics, Inc. CM106 Like Sound Device.” It didn’t require any additional configuration other than switching the profile to 4.1.
- card1.png (390.64 KiB) Viewed 1636 times
If you want to enable upmixing manually in PipeWire, according to the documentation we shared earlier, you can use the parameters
channelmix.upmix, channelmix.upmix-method, and channelmix.lfe-cutoff. You can set them, for example, in the $HOME/.config/pipewire/pipewire-pulse.conf.d/hudiy.conf file like:
Code: Select all
stream.properties = {
#node.latency = 1024/48000
#node.autoconnect = true
#resample.quality = 4
#channelmix.normalize = false
#channelmix.mix-lfe = true
channelmix.upmix = true
channelmix.upmix-method = psd # none, simple
channelmix.lfe-cutoff = 150
#channelmix.fc-cutoff = 12000
#channelmix.rear-delay = 12.0
#channelmix.stereo-widen = 0.0
#channelmix.hilbert-taps = 0
#dither.noise = 0
}
docs:
https://docs.pipewire.org/page_man_pipe ... ops_7.html
Re: Cm6206 Output
Posted: Mon Sep 01, 2025 1:44 pm
by alex124.rh
thanks, i was going to buy one like this anyway actually as the one i had is known for audio clipping.
It looks similar but different casing, so i will give it a go. Was yours unbranded?
https://amzn.eu/d/7DIApND
Re: Cm6206 Output
Posted: Tue Sep 02, 2025 4:13 pm
by alex124.rh
i bought one and 4.1 reports FL FR RL RR and FC on the channel map, can you let me know if you set yours to 4.1 and analog stereo mic or just 4.1. can you let me know your output of pactl list sinks please, so i can compare.
when you set it to 4.1 are you getting subwoofer settings in hudiy
Re: Cm6206 Output
Posted: Wed Sep 03, 2025 9:51 am
by alex124.rh
Hoping for some help on this! It seems alsa drivers have the mapping wrong. Since its such a complicated fix mayne you can allow hudiy to support and recognise the 5.1 profile, so that the sub works and wont break the volume control. if it ignores the centre thats fine as long as it could accept 6ch, allowing these soundcards to work as they all have the same issues.
Please do see my previous message, I hope to see your output in terminal to see if your card is correct on 4.1
Re: Cm6206 Output
Posted: Wed Sep 03, 2025 10:12 am
by hudiy
Here is pactl list sinks for 4.1:
Code: Select all
Sink #102
State: RUNNING
Name: alsa_output.usb-0d8c_USB_Sound_Device-00.analog-surround-41
Description: CM106 Like Sound Device Analog Surround 4.1
Driver: PipeWire
Sample Specification: s16le 5ch 48000Hz
Channel Map: front-left,front-right,rear-left,rear-right,lfe
Owner Module: 4294967295
Mute: no
Volume: front-left: 5243 / 8% / -65.81 dB, front-right: 5243 / 8% / -65.81 dB, rear-left: 5243 / 8% / -65.81 dB, rear-right: 5243 / 8% / -65.81 dB, lfe: 5243 / 8% / -65.81 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor Source: alsa_output.usb-0d8c_USB_Sound_Device-00.analog-surround-41.monitor
Latency: 0 usec, configured 0 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Properties:
alsa.card = "2"
alsa.card_name = "ICUSBAUDIO7D"
alsa.class = "generic"
alsa.components = "USB0d8c:0102"
alsa.device = "0"
alsa.driver_name = "snd_usb_audio"
alsa.id = "USB Audio"
alsa.long_card_name = "ICUSBAUDIO7D at usb-xhci-hcd.0-2.3, full speed"
alsa.mixer_name = "USB Mixer"
alsa.name = "USB Audio"
alsa.resolution_bits = "16"
alsa.subclass = "generic-mix"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.sync.id = "00000000:00000000:00000000:00000000"
api.alsa.card.longname = "ICUSBAUDIO7D at usb-xhci-hcd.0-2.3, full speed"
api.alsa.card.name = "ICUSBAUDIO7D"
api.alsa.path = "surround41:2"
api.alsa.pcm.card = "2"
api.alsa.pcm.stream = "playback"
audio.channels = "5"
audio.position = "FL,FR,RL,RR,LFE"
card.profile.device = "7"
device.api = "alsa"
device.class = "sound"
device.id = "91"
device.profile.description = "Analog Surround 4.1"
device.profile.name = "analog-surround-41"
device.routes = "1"
factory.name = "api.alsa.pcm.sink"
media.class = "Audio/Sink"
device.description = "CM106 Like Sound Device"
node.name = "alsa_output.usb-0d8c_USB_Sound_Device-00.analog-surround-41"
node.nick = "ICUSBAUDIO7D"
node.pause-on-idle = "false"
object.path = "alsa:acp:ICUSBAUDIO7D:7:playback"
port.group = "playback"
priority.driver = "1009"
priority.session = "1009"
factory.id = "19"
clock.quantum-limit = "8192"
client.id = "44"
node.driver = "true"
node.loop.name = "data-loop.0"
library.name = "audioconvert/libspa-audioconvert"
object.id = "93"
object.serial = "102"
node.driver-id = "95"
node.max-latency = "16384/48000"
api.alsa.period-size = "128"
api.alsa.period-num = "256"
api.alsa.headroom = "128"
api.acp.auto-port = "false"
api.acp.auto-profile = "false"
api.alsa.card = "2"
api.alsa.use-acp = "true"
api.dbus.ReserveDevice1 = "Audio2"
device.bus = "usb"
device.bus-id = "usb-0d8c_USB_Sound_Device-00"
device.bus_path = "platform-xhci-hcd.0-usb-0:2.3:1.0"
device.enum.api = "udev"
device.icon_name = "audio-card-analog-usb"
device.name = "alsa_card.usb-0d8c_USB_Sound_Device-00"
device.nick = "ICUSBAUDIO7D"
device.plugged.usec = "1575371443"
device.product.id = "0x0102"
device.product.name = "CM106 Like Sound Device"
device.serial = "0d8c_USB_Sound_Device"
device.subsystem = "sound"
sysfs.path = "/devices/platform/axi/1000120000.pcie/1f00200000.usb/xhci-hcd.0/usb1/1-2/1-2.3/1-2.3:1.0/sound/card2"
device.vendor.id = "0x0d8c"
device.vendor.name = "C-Media Electronics, Inc."
device.string = "2"
Ports:
analog-output-speaker: Speakers (type: Speaker, priority: 10000, availability unknown)
Active Port: analog-output-speaker
Formats:
pcm
and for 5.1:
Code: Select all
Sink #135
State: RUNNING
Name: alsa_output.usb-0d8c_USB_Sound_Device-00.analog-surround-51
Description: CM106 Like Sound Device Analog Surround 5.1
Driver: PipeWire
Sample Specification: s16le 6ch 48000Hz
Channel Map: front-left,front-right,rear-left,rear-right,front-center,lfe
Owner Module: 4294967295
Mute: no
Volume: front-left: 5243 / 8% / -65.81 dB, front-right: 5243 / 8% / -65.81 dB, rear-left: 5243 / 8% / -65.81 dB, rear-right: 5243 / 8% / -65.81 dB, front-center: 5243 / 8% / -65.81 dB, lfe: 5243 / 8% / -65.81 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor Source: alsa_output.usb-0d8c_USB_Sound_Device-00.analog-surround-51.monitor
Latency: 0 usec, configured 0 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Properties:
alsa.card = "2"
alsa.card_name = "ICUSBAUDIO7D"
alsa.class = "generic"
alsa.components = "USB0d8c:0102"
alsa.device = "0"
alsa.driver_name = "snd_usb_audio"
alsa.id = "USB Audio"
alsa.long_card_name = "ICUSBAUDIO7D at usb-xhci-hcd.0-2.3, full speed"
alsa.mixer_name = "USB Mixer"
alsa.name = "USB Audio"
alsa.resolution_bits = "16"
alsa.subclass = "generic-mix"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.sync.id = "00000000:00000000:00000000:00000000"
api.alsa.card.longname = "ICUSBAUDIO7D at usb-xhci-hcd.0-2.3, full speed"
api.alsa.card.name = "ICUSBAUDIO7D"
api.alsa.path = "surround51:2"
api.alsa.pcm.card = "2"
api.alsa.pcm.stream = "playback"
audio.channels = "6"
audio.position = "FL,FR,RL,RR,FC,LFE"
card.profile.device = "9"
device.api = "alsa"
device.class = "sound"
device.id = "91"
device.profile.description = "Analog Surround 5.1"
device.profile.name = "analog-surround-51"
device.routes = "1"
factory.name = "api.alsa.pcm.sink"
media.class = "Audio/Sink"
device.description = "CM106 Like Sound Device"
node.name = "alsa_output.usb-0d8c_USB_Sound_Device-00.analog-surround-51"
node.nick = "ICUSBAUDIO7D"
node.pause-on-idle = "false"
object.path = "alsa:acp:ICUSBAUDIO7D:9:playback"
port.group = "playback"
priority.driver = "1009"
priority.session = "1009"
factory.id = "19"
clock.quantum-limit = "8192"
client.id = "44"
node.driver = "true"
node.loop.name = "data-loop.0"
library.name = "audioconvert/libspa-audioconvert"
object.id = "95"
object.serial = "135"
node.driver-id = "108"
node.max-latency = "16384/48000"
api.alsa.period-size = "128"
api.alsa.period-num = "256"
api.alsa.headroom = "128"
api.acp.auto-port = "false"
api.acp.auto-profile = "false"
api.alsa.card = "2"
api.alsa.use-acp = "true"
api.dbus.ReserveDevice1 = "Audio2"
device.bus = "usb"
device.bus-id = "usb-0d8c_USB_Sound_Device-00"
device.bus_path = "platform-xhci-hcd.0-usb-0:2.3:1.0"
device.enum.api = "udev"
device.icon_name = "audio-card-analog-usb"
device.name = "alsa_card.usb-0d8c_USB_Sound_Device-00"
device.nick = "ICUSBAUDIO7D"
device.plugged.usec = "1575371443"
device.product.id = "0x0102"
device.product.name = "CM106 Like Sound Device"
device.serial = "0d8c_USB_Sound_Device"
device.subsystem = "sound"
sysfs.path = "/devices/platform/axi/1000120000.pcie/1f00200000.usb/xhci-hcd.0/usb1/1-2/1-2.3/1-2.3:1.0/sound/card2"
device.vendor.id = "0x0d8c"
device.vendor.name = "C-Media Electronics, Inc."
device.string = "2"
Ports:
analog-output-speaker: Speakers (type: Speaker, priority: 10000, availability unknown)
Active Port: analog-output-speaker
Formats:
pcm
Re: Cm6206 Output
Posted: Wed Sep 03, 2025 10:15 am
by hudiy
We can add setting the volume for front-center, but that would be more of a workaround. The better approach would be to create an issue on the PipeWire GitLab (
https://gitlab.freedesktop.org/pipewire ... /-/issues/) and investigate why your sound card’s channel mapping is broken and how it can be remapped or fixed.
Re: Cm6206 Output
Posted: Wed Sep 03, 2025 10:44 am
by alex124.rh
Thanks for the info. I will compare to mines.
If you could add it that would be great, as I dont think I will get any other solution as easily as that. It’s not just my soundcard, it’s every one I tried from amazon that was available.
Let me know if you can add that fix to the upcoming release? Is there a date for planned update.
Re: Cm6206 Output
Posted: Wed Sep 03, 2025 7:16 pm
by hudiy
Try this config to remap the channels from 5.1 to 4.1 and please confirm if balance/fade works with your sound card.
1. Switch profile of your sound card to 5.1
2. Replace content of
$HOME/.config/pipewire/pipewire-pulse.conf.d/hudiy.conf with:
Code: Select all
pulse.cmd = [
{ cmd = "load-module" args = "module-remap-sink sink_name=surround51_to_41 master=alsa_output.usb-0d8c_USB_Sound_Device-00.analog-surround-51 channels=5 master_channel_map=front-left,front-right,rear-left,rear-right,lfe channel_map=front-left,front-right,rear-left,rear-right,lfe remix=yes" }
{ cmd = "load-module" args = "module-ladspa-sink sink_name=hudiy_equalizer_sink master=surround51_to_41 channels=2 channel_map=front-left,front-right plugin=hudiy_equalizer label=hudiy_equalizer control=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0" }
{ cmd = "load-module" args = "module-echo-cancel aec_method=webrtc aec_args=\"voice_detection=0\" source_name=echo_cancel_source sink_master=hudiy_equalizer_sink" }
]
stream.properties = {
channelmix.upmix = true
channelmix.upmix-method = simple
channelmix.lfe-cutoff = 150
channelmix.fc-cutoff = 12000
channelmix.rear-delay = 0.0
}
3. Set
volumeSinkName to "surround51_to_41" in main_configuration.json (
https://github.com/wiboma/hudiy/blob/ma ... n.md#sound)
4. Add
& (run in background) at the end of line with hudiy_run.sh in
/etc/xdg/labwc/autostart to not block wireplumber and avoid race condition with PipeWire clients like Hudiy during the remap:
5. Restart the Raspberry Pi
PipeWire should handle the routing like:
clients (like Hudiy) -> hudiy_equalizer_sink -> surround51_to_41 (upmix if needed to 5.1 done by PipeWire) -> sound card (with front-center cut-off).
Re: Cm6206 Output
Posted: Fri Sep 05, 2025 10:51 am
by alex124.rh
Hi there, I did as instructed and managed to get it to like the volume sink, it’s no longer broken, however now i have 0 audio output at all.
Let me know how to proceed. Thanks again for the help