[pulseaudio-discuss] Pulseaudio and S/PDIF
Jerry Geis
jerry.geis at gmail.com
Thu Mar 23 14:06:19 UTC 2023
On Thu, Mar 23, 2023 at 9:35 AM Jerry Geis <jerry.geis at gmail.com> wrote:
>
> I see the below for list-sources.
>
> Source index 1 is muted.
> Source index 2 presents - TWO - microphones
> I want to MUTE the S/PDIF one ????
> how do I do that ?
>
> The GUI on Ubuntu 20.04 for the Input shows two items
> Digital S/PDIF Webcam and Webcam.
>
> Muting from GUI - works - but how do I do it from the command line ?
>
> Thanks
>
> Jerry
>
> ----
> pacmd list-sources
> 2 source(s) available.
> index: 1
> name: <alsa_output.pci-0000_00_1b.0.hdmi-stereo.monitor>
> driver: <module-alsa-card.c>
> flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
> state: SUSPENDED
> suspend cause: IDLE
> priority: 1030
> volume: front-left: 0 / 0% / -inf dB, front-right: 0 / 0% / -inf dB
> balance 0.00
> base volume: 65536 / 100% / 0.00 dB
> volume steps: 65537
> muted: yes
> current latency: 0.00 ms
> max rewind: 0 KiB
> sample spec: s16le 2ch 44100Hz
> channel map: front-left,front-right
> Stereo
> used by: 0
> linked by: 0
> configured latency: 0.00 ms; range is 16.00 .. 2000.00 ms
> monitor_of: 0
> card: 1 <alsa_card.pci-0000_00_1b.0>
> module: 8
> properties:
> device.description = "Monitor of Built-in Audio Digital Stereo (HDMI)"
> device.class = "monitor"
> alsa.card = "0"
> alsa.card_name = "HDA Intel PCH"
> alsa.long_card_name = "HDA Intel PCH at 0x89414000 irq 126"
> alsa.driver_name = "snd_hda_intel"
> device.bus_path = "pci-0000:00:1b.0"
> sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
> device.bus = "pci"
> device.vendor.id = "8086"
> device.vendor.name = "Intel Corporation"
> device.product.id = "2284"
> device.product.name = "Atom/Celeron/Pentium Processor
> x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller"
> device.form_factor = "internal"
> device.string = "0"
> module-udev-detect.discovered = "1"
> device.icon_name = "audio-card-pci"
> * index: 2
> name: <alsa_input.usb-046d_Logitech_Webcam_C930e_8E44BAAE-02.iec958-stereo>
> driver: <module-alsa-card.c>
> flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
> state: RUNNING
> suspend cause: (none)
> priority: 9048
> volume: front-left: 29450 / 45% / -20.84 dB, front-right: 29450 / 45%
> / -20.84 dB
> balance 0.00
> base volume: 65536 / 100% / 0.00 dB
> volume steps: 65537
> muted: no
> current latency: 0.62 ms
> max rewind: 0 KiB
> sample spec: s16le 2ch 48000Hz
> channel map: front-left,front-right
> Stereo
> used by: 1
> linked by: 1
> configured latency: 40.00 ms; range is 0.50 .. 2000.00 ms
> card: 0 <alsa_card.usb-046d_Logitech_Webcam_C930e_8E44BAAE-02>
> module: 7
> properties:
> alsa.resolution_bits = "16"
> device.api = "alsa"
> device.class = "sound"
> alsa.class = "generic"
> alsa.subclass = "generic-mix"
> alsa.name = "USB Audio"
> alsa.id = "USB Audio"
> alsa.subdevice = "0"
> alsa.subdevice_name = "subdevice #0"
> alsa.device = "0"
> alsa.card = "1"
> alsa.card_name = "Logitech Webcam C930e"
> alsa.long_card_name = "Logitech Webcam C930e at usb-0000:00:14.0-2, high
> speed"
> alsa.driver_name = "snd_usb_audio"
> device.bus_path = "pci-0000:00:14.0-usb-0:2:1.2"
> sysfs.path =
> "/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.2/sound/card1"
> udev.id = "usb-046d_Logitech_Webcam_C930e_8E44BAAE-02"
> device.bus = "usb"
> device.vendor.id = "046d"
> device.vendor.name = "Logitech, Inc."
> device.product.id = "0843"
> device.product.name = "Webcam C930e"
> device.serial = "046d_Logitech_Webcam_C930e_8E44BAAE"
> device.form_factor = "webcam"
> device.string = "iec958:1"
> device.buffering.buffer_size = "384000"
> device.buffering.fragment_size = "192000"
> device.access_mode = "mmap+timer"
> device.profile.name = "iec958-stereo"
> device.profile.description = "Digital Stereo (IEC958)"
> device.description = "Webcam C930e Digital Stereo (IEC958)"
> module-udev-detect.discovered = "1"
> device.icon_name = "camera-web-usb"
> ports:
> iec958-stereo-input: Digital Input (S/PDIF) (priority 0, latency offset 0
> usec, available: unknown)
> properties:
>
> active port: <iec958-stereo-input>
>
This shows it: with "pacmd list-cards"
input:analog-stereo: Analog Stereo Input (priority 65, available: unknown)
input:iec958-stereo: Digital Stereo (IEC958) Input (priority 55, available:
unknown)
I want the analog to be active and want to MUTE this iec958
So there are TWO microphones presented on this card (webcam) or USB input
microphone.
I want to use the analog one and not the iec958. I get feedback with both
enabled.
I can mute it from GUI - but I need to be able to mute JUST the iec958
input and not the analog from the command line.
So seems the webcam presents two microphones- I need to mute one of them
S/PDIF from the command line
thanks
Jerry
pacmd list-cards
2 card(s) available.
index: 0
name: <alsa_card.usb-046d_Logitech_Webcam_C930e_8E44BAAE-02>
driver: <module-alsa-card.c>
owner module: 7
properties:
alsa.card = "1"
alsa.card_name = "Logitech Webcam C930e"
alsa.long_card_name = "Logitech Webcam C930e at usb-0000:00:14.0-2, high
speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:14.0-usb-0:2:1.2"
sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.2/sound/card1"
udev.id = "usb-046d_Logitech_Webcam_C930e_8E44BAAE-02"
device.bus = "usb"
device.vendor.id = "046d"
device.vendor.name = "Logitech, Inc."
device.product.id = "0843"
device.product.name = "Webcam C930e"
device.serial = "046d_Logitech_Webcam_C930e_8E44BAAE"
device.form_factor = "webcam"
device.string = "1"
device.description = "Webcam C930e"
module-udev-detect.discovered = "1"
device.icon_name = "camera-web-usb"
profiles:
input:analog-stereo: Analog Stereo Input (priority 65, available: unknown)
input:iec958-stereo: Digital Stereo (IEC958) Input (priority 55, available:
unknown)
off: Off (priority 0, available: unknown)
active profile: <input:iec958-stereo>
sources:
alsa_input.usb-046d_Logitech_Webcam_C930e_8E44BAAE-02.iec958-stereo/#2:
Webcam C930e Digital Stereo (IEC958)
ports:
analog-input-mic: Microphone (priority 8700, latency offset 0 usec,
available: unknown)
properties:
device.icon_name = "audio-input-microphone"
iec958-stereo-input: Digital Input (S/PDIF) (priority 0, latency offset 0
usec, available: unknown)
properties:
index: 1
name: <alsa_card.pci-0000_00_1b.0>
driver: <module-alsa-card.c>
owner module: 8
properties:
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0x89414000 irq 126"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "2284"
device.product.name = "Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx
Series High Definition Audio Controller"
device.form_factor = "internal"
device.string = "0"
device.description = "Built-in Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
input:analog-stereo: Analog Stereo Input (priority 65, available: no)
output:analog-stereo: Analog Stereo Output (priority 6500, available: no)
output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority
6565, available: no)
output:analog-surround-40: Analog Surround 4.0 Output (priority 33968,
available: unknown)
output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output +
Analog Stereo Input (priority 1265, available: unknown)
output:iec958-stereo: Digital Stereo (IEC958) Output (priority 38268,
available: unknown)
output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output +
Analog Stereo Input (priority 5565, available: unknown)
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 38668,
available: unknown)
output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output +
Analog Stereo Input (priority 5965, available: unknown)
output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 33568,
available: unknown)
output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI)
Output + Analog Stereo Input (priority 865, available: unknown)
off: Off (priority 0, available: unknown)
active profile: <output:hdmi-stereo>
sinks:
alsa_output.pci-0000_00_1b.0.hdmi-stereo/#0: Built-in Audio Digital Stereo
(HDMI)
sources:
alsa_output.pci-0000_00_1b.0.hdmi-stereo.monitor/#1: Monitor of Built-in
Audio Digital Stereo (HDMI)
ports:
analog-input-mic: Microphone (priority 8700, latency offset 0 usec,
available: no)
properties:
device.icon_name = "audio-input-microphone"
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec,
available: no)
properties:
device.icon_name = "audio-headphones"
analog-output: Analog Output (priority 9900, latency offset 0 usec,
available: unknown)
properties:
iec958-stereo-output: Digital Output (S/PDIF) (priority 0, latency offset 0
usec, available: unknown)
properties:
hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec,
available: yes)
properties:
device.icon_name = "video-display"
device.product.name = "SAMSUNG"
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20230323/2320c989/attachment-0001.htm>
More information about the pulseaudio-discuss
mailing list