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loranto

Member

Registered: 2022-11-02

Posts: 13

Noise from internal mic

Hello. I'm having problems with audio in my pipewire setup on a laptop.
The built-in microphone works but is very noisy and the one connected via the audio jack is not detected. The same goes if I try to use an external sound card. Bluetooth audio seems to work fine.
I'm not seeing any problems on out-of-stock Ubuntu.

$ amixer
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 65536
  Mono: Playback 42598 [65%] [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cvolume-joined cswitch cswitch-joined
  Capture channels: Mono
  Limits: Capture 0 - 65536
  Mono: Capture 65536 [100%] [on]

Alsamixer shows pipiwire as default soundcard.

Here my soundcard:

$ lsusb | grep G6
Bus 003 Device 010: ID 041e:3256 Creative Technology, Ltd Sound BlasterX G6

$ arecord --list-devices
**** List of CAPTURE Hardware Devices ****
card 1: PCH [HDA Intel PCH], device 0: ALC295 Analog [ALC295 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: G6 [Sound BlasterX G6], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

$ lspci | grep Audio
0000:00:1f.3 Audio device: Intel Corporation Tiger Lake-H HD Audio Controller (rev 11)
0000:01:00.1 Audio device: NVIDIA Corporation Device 2291 (rev a1)

Last edited by loranto (2024-03-15 15:10:49)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,230

Re: Noise from internal mic

To get to the actual mixer controls despite the presence of  pipewire you'd do

amixer -c1
amixer -c2

respectively. Chances you have a Mic Boost or so overdriving, which you should indeed tone down/toggle from the relevant amixer/ALSA level.

FWIW for completeness sake in addition to those two, during an actual recording attempt what do you get from

pactl list sources
pactl list source-outputs

loranto

Member

Registered: 2022-11-02

Posts: 13

Re: Noise from internal mic

To get to the actual mixer controls despite the presence of  pipewire you'd do

amixer -c1
amixer -c2

respectively. Chances you have a Mic Boost or so overdriving, which you should indeed tone down/toggle from the relevant amixer/ALSA level.

FWIW for completeness sake in addition to those two, during an actual recording attempt what do you get from

pactl list sources
pactl list source-outputs

$ amixer -c1
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 78 [90%] [-6.75dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 0 [0%] [-65.25dB] [off]
  Front Right: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 87 [100%] [0.00dB] [on]
  Front Right: Playback 87 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 2 [67%] [20.00dB]
  Front Right: 2 [67%] [20.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958',1
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',2
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958',3
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 63
  Front Left: Capture 63 [100%] [30.00dB] [on]
  Front Right: Capture 63 [100%] [30.00dB] [on]
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Disabled'
Simple mixer control 'Digital',0
  Capabilities: cvolume
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 60 [50%] [0.00dB]
  Front Right: Capture 60 [50%] [0.00dB]

$ amixer -c2
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 128
  Mono:
  Front Left: Playback 89 [70%] [-19.50dB] [on]
  Front Right: Playback 89 [70%] [-19.50dB] [on]
Simple mixer control 'Speaker Clock Source',0
  Capabilities: enum
  Items: 'DSP Clock' 'Stereo Direct'
  Item0: 'DSP Clock'
Simple mixer control 'PCM',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 0
  Mono: 0 [0%]
Simple mixer control 'PCM Capture Source',0
  Capabilities: enum
  Items: 'Line In' 'External Mic' 'S/PDIF In' 'What U Hear'
  Item0: 'Line In'
Simple mixer control 'PCM',1
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 0
  Mono: 0 [0%]
Simple mixer control 'Line In',0
  Capabilities: pvolume cvolume pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 146 Capture 0 - 57
  Front Left: Playback 116 [79%] [-6.00dB] [on] Capture 48 [84%] [0.00dB] [on]
  Front Right: Playback 116 [79%] [-6.00dB] [on] Capture 48 [84%] [0.00dB] [on]
Simple mixer control 'Line In',1
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 0
  Mono: 0 [0%]
Simple mixer control 'External Mic',0
  Capabilities: pvolume cvolume pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 146 Capture 0 - 57
  Front Left: Playback 146 [100%] [9.00dB] [off] Capture 48 [84%] [0.00dB] [on]
  Front Right: Playback 146 [100%] [9.00dB] [off] Capture 48 [84%] [0.00dB] [on]
Simple mixer control 'External Mic',1
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 0
  Mono: 0 [0%]
Simple mixer control 'Input Gain Control',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 3
  Mono: 0 [0%]
Simple mixer control 'S/PDIF In',0
  Capabilities: pvolume cvolume pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 146 Capture 0 - 57
  Front Left: Playback 128 [88%] [0.00dB] [on] Capture 48 [84%] [0.00dB] [on]
  Front Right: Playback 128 [88%] [0.00dB] [on] Capture 48 [84%] [0.00dB] [on]
Simple mixer control 'S/PDIF In',1
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 0
  Mono: 0 [0%]
Simple mixer control 'What U Hear',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 57
  Front Left: Capture 48 [84%] [0.00dB] [on]
  Front Right: Capture 48 [84%] [0.00dB] [on]

$ pactl list sources
Source #47
        State: SUSPENDED
        Name: alsa_output.pci-0000_00_1f.3.analog-stereo.monitor
        Description: Monitor of Built-in Audio Analog Stereo
        Driver: PipeWire
        Sample Specification: s32le 2ch 48000Hz
        Channel Map: front-left,front-right
        Owner Module: 4294967295
        Mute: no
        Volume: front-left: 65536 / 100% / 0,00 dB,   front-right: 65536 / 100% / 0,00 dB
                balance 0,00
        Base Volume: 65536 / 100% / 0,00 dB
        Monitor of Sink: alsa_output.pci-0000_00_1f.3.analog-stereo
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE DECIBEL_VOLUME LATENCY 
        Properties:
                alsa.card = "1"
                alsa.card_name = "HDA Intel PCH"
                alsa.class = "generic"
                alsa.device = "0"
                alsa.driver_name = "snd_hda_intel"
                alsa.id = "ALC295 Analog"
                alsa.long_card_name = "HDA Intel PCH at 0x6105230000 irq 199"
                alsa.name = "ALC295 Analog"
                alsa.resolution_bits = "16"
                alsa.subclass = "generic-mix"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                api.alsa.card.longname = "HDA Intel PCH at 0x6105230000 irq 199"
                api.alsa.card.name = "HDA Intel PCH"
                api.alsa.path = "front:1"
                api.alsa.pcm.card = "1"
                api.alsa.pcm.stream = "playback"
                audio.channels = "2"
                audio.position = "FL,FR"
                card.profile.device = "7"
                device.api = "alsa"
                device.class = "monitor"
                device.id = "46"
                device.profile.description = "Analog Stereo"
                device.profile.name = "analog-stereo"
                device.routes = "2"
                factory.name = "api.alsa.pcm.sink"
                media.class = "Audio/Sink"
                device.description = "Built-in Audio"
                node.name = "alsa_output.pci-0000_00_1f.3.analog-stereo"
                node.nick = "ALC295 Analog"
                node.pause-on-idle = "false"
                object.path = "alsa:pcm:1:front:1:playback"
                priority.driver = "1009"
                priority.session = "1009"
                factory.id = "18"
                clock.quantum-limit = "8192"
                client.id = "34"
                node.driver = "true"
                factory.mode = "merge"
                audio.adapt.follower = ""
                library.name = "audioconvert/libspa-audioconvert"
                object.id = "47"
                object.serial = "47"
                api.acp.auto-port = "false"
                api.acp.auto-profile = "false"
                api.alsa.card = "1"
                api.alsa.use-acp = "true"
                api.dbus.ReserveDevice1 = "Audio1"
                device.bus = "pci"
                device.bus_path = "pci-0000:00:1f.3"
                device.enum.api = "udev"
                device.form_factor = "internal"
                device.icon_name = "audio-card-analog-pci"
                device.name = "alsa_card.pci-0000_00_1f.3"
                device.nick = "HDA Intel PCH"
                device.plugged.usec = "7260028"
                device.product.id = "0x43c8"
                device.product.name = "Tiger Lake-H HD Audio Controller"
                device.subsystem = "sound"
                sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card1"
                device.vendor.id = "0x8086"
                device.vendor.name = "Intel Corporation"
                device.string = "1"
        Ports:
                analog-output-speaker: Speakers (type: Speaker, priority: 10000, availability group: Legacy 2, availability unknown)
                analog-output-headphones: Headphones (type: Headphones, priority: 9900, availability group: Legacy 3, not available)
        Active Port: analog-output-speaker
        Formats:
                pcm

Source #48
        State: RUNNING
        Name: alsa_input.pci-0000_00_1f.3.analog-stereo
        Description: Built-in Audio Analog Stereo
        Driver: PipeWire
        Sample Specification: s32le 2ch 48000Hz
        Channel Map: front-left,front-right
        Owner Module: 4294967295
        Mute: no
        Volume: front-left: 64599 /  99% / -0,38 dB,   front-right: 64599 /  99% / -0,38 dB
                balance 0,00
        Base Volume: 6554 /  10% / -60,00 dB
        Monitor of Sink: n/a
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
        Properties:
                alsa.card = "1"
                alsa.card_name = "HDA Intel PCH"
                alsa.class = "generic"
                alsa.device = "0"
                alsa.driver_name = "snd_hda_intel"
                alsa.id = "ALC295 Analog"
                alsa.long_card_name = "HDA Intel PCH at 0x6105230000 irq 199"
                alsa.name = "ALC295 Analog"
                alsa.resolution_bits = "16"
                alsa.subclass = "generic-mix"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                api.alsa.card.longname = "HDA Intel PCH at 0x6105230000 irq 199"
                api.alsa.card.name = "HDA Intel PCH"
                api.alsa.path = "front:1"
                api.alsa.pcm.card = "1"
                api.alsa.pcm.stream = "capture"
                audio.channels = "2"
                audio.position = "FL,FR"
                card.profile.device = "0"
                device.api = "alsa"
                device.class = "sound"
                device.id = "46"
                device.profile.description = "Analog Stereo"
                device.profile.name = "analog-stereo"
                device.routes = "1"
                factory.name = "api.alsa.pcm.source"
                media.class = "Audio/Source"
                device.description = "Built-in Audio"
                node.name = "alsa_input.pci-0000_00_1f.3.analog-stereo"
                node.nick = "ALC295 Analog"
                node.pause-on-idle = "false"
                object.path = "alsa:pcm:1:front:1:capture"
                priority.driver = "2009"
                priority.session = "2009"
                factory.id = "18"
                clock.quantum-limit = "8192"
                client.id = "34"
                node.driver = "true"
                factory.mode = "split"
                audio.adapt.follower = ""
                library.name = "audioconvert/libspa-audioconvert"
                object.id = "48"
                object.serial = "48"
                node.max-latency = "16384/48000"
                api.alsa.period-size = "1024"
                api.alsa.period-num = "32"
                api.alsa.headroom = "32"
                api.acp.auto-port = "false"
                api.acp.auto-profile = "false"
                api.alsa.card = "1"
                api.alsa.use-acp = "true"
                api.dbus.ReserveDevice1 = "Audio1"
                device.bus = "pci"
                device.bus_path = "pci-0000:00:1f.3"
                device.enum.api = "udev"
                device.form_factor = "internal"
                device.icon_name = "audio-card-analog-pci"
                device.name = "alsa_card.pci-0000_00_1f.3"
                device.nick = "HDA Intel PCH"
                device.plugged.usec = "7260028"
                device.product.id = "0x43c8"
                device.product.name = "Tiger Lake-H HD Audio Controller"
                device.subsystem = "sound"
                sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card1"
                device.vendor.id = "0x8086"
                device.vendor.name = "Intel Corporation"
                device.string = "1"
        Ports:
                analog-input-mic: Microphone (type: Mic, priority: 8700, availability group: Legacy 1, availability unknown)
        Active Port: analog-input-mic
        Formats:
                pcm

Source #68
        State: RUNNING
        Name: alsa_output.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00.analog-stereo.monitor
        Description: Monitor of Sound BlasterX G6 Analog Stereo
        Driver: PipeWire
        Sample Specification: s32le 2ch 48000Hz
        Channel Map: front-left,front-right
        Owner Module: 4294967295
        Mute: no
        Volume: front-left: 65536 / 100% / 0,00 dB,   front-right: 65536 / 100% / 0,00 dB
                balance 0,00
        Base Volume: 65536 / 100% / 0,00 dB
        Monitor of Sink: alsa_output.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00.analog-stereo
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE DECIBEL_VOLUME LATENCY 
        Properties:
                alsa.card = "2"
                alsa.card_name = "Sound BlasterX G6"
                alsa.class = "generic"
                alsa.device = "0"
                alsa.driver_name = "snd_usb_audio"
                alsa.id = "USB Audio"
                alsa.long_card_name = "Creative Technology Ltd Sound BlasterX G6 at usb-0000:00:14.0-4, high speed"
                alsa.name = "USB Audio"
                alsa.resolution_bits = "32"
                alsa.subclass = "generic-mix"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                api.alsa.card.longname = "Creative Technology Ltd Sound BlasterX G6 at usb-0000:00:14.0-4, high speed"
                api.alsa.card.name = "Sound BlasterX G6"
                api.alsa.path = "front:2"
                api.alsa.pcm.card = "2"
                api.alsa.pcm.stream = "playback"
                audio.channels = "2"
                audio.position = "FL,FR"
                card.profile.device = "4"
                device.api = "alsa"
                device.class = "monitor"
                device.id = "62"
                device.profile.description = "Analog Stereo"
                device.profile.name = "analog-stereo"
                device.routes = "1"
                factory.name = "api.alsa.pcm.sink"
                media.class = "Audio/Sink"
                device.description = "Sound BlasterX G6"
                node.name = "alsa_output.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00.analog-stereo"
                node.nick = "Sound BlasterX G6"
                node.pause-on-idle = "false"
                object.path = "alsa:pcm:2:front:2:playback"
                priority.driver = "1009"
                priority.session = "1009"
                factory.id = "18"
                clock.quantum-limit = "8192"
                client.id = "34"
                node.driver = "true"
                factory.mode = "merge"
                audio.adapt.follower = ""
                library.name = "audioconvert/libspa-audioconvert"
                object.id = "63"
                object.serial = "68"
                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-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00"
                device.bus_path = "pci-0000:00:14.0-usb-0:4:1.0"
                device.enum.api = "udev"
                device.icon_name = "audio-card-analog-usb"
                device.name = "alsa_card.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00"
                device.nick = "Sound BlasterX G6"
                device.plugged.usec = "247676322"
                device.product.id = "0x3256"
                device.product.name = "Sound BlasterX G6"
                device.serial = "Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX"
                device.subsystem = "sound"
                sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.0/sound/card2"
                device.vendor.id = "0x041e"
                device.vendor.name = "Creative Technology, Ltd"
                device.string = "2"
        Ports:
                analog-output-speaker: Speakers (type: Speaker, priority: 10000, availability unknown)
        Active Port: analog-output-speaker
        Formats:
                pcm

Source #69
        State: SUSPENDED
        Name: alsa_input.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00.analog-stereo
        Description: Sound BlasterX G6 Analog Stereo
        Driver: PipeWire
        Sample Specification: s32le 2ch 48000Hz
        Channel Map: front-left,front-right
        Owner Module: 4294967295
        Mute: no
        Volume: front-left: 64599 /  99% / -0,38 dB,   front-right: 64599 /  99% / -0,38 dB
                balance 0,00
        Base Volume: 65536 / 100% / 0,00 dB
        Monitor of Sink: n/a
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE DECIBEL_VOLUME LATENCY 
        Properties:
                alsa.card = "2"
                alsa.card_name = "Sound BlasterX G6"
                alsa.class = "generic"
                alsa.device = "0"
                alsa.driver_name = "snd_usb_audio"
                alsa.id = "USB Audio"
                alsa.long_card_name = "Creative Technology Ltd Sound BlasterX G6 at usb-0000:00:14.0-4, high speed"
                alsa.name = "USB Audio"
                alsa.resolution_bits = "32"
                alsa.subclass = "generic-mix"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                api.alsa.card.longname = "Creative Technology Ltd Sound BlasterX G6 at usb-0000:00:14.0-4, high speed"
                api.alsa.card.name = "Sound BlasterX G6"
                api.alsa.path = "front:2"
                api.alsa.pcm.card = "2"
                api.alsa.pcm.stream = "capture"
                audio.channels = "2"
                audio.position = "FL,FR"
                card.profile.device = "0"
                device.api = "alsa"
                device.class = "sound"
                device.id = "62"
                device.profile.description = "Analog Stereo"
                device.profile.name = "analog-stereo"
                device.routes = "1"
                factory.name = "api.alsa.pcm.source"
                media.class = "Audio/Source"
                device.description = "Sound BlasterX G6"
                node.name = "alsa_input.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00.analog-stereo"
                node.nick = "Sound BlasterX G6"
                node.pause-on-idle = "false"
                object.path = "alsa:pcm:2:front:2:capture"
                priority.driver = "2009"
                priority.session = "2009"
                factory.id = "18"
                clock.quantum-limit = "8192"
                client.id = "34"
                node.driver = "true"
                factory.mode = "split"
                audio.adapt.follower = ""
                library.name = "audioconvert/libspa-audioconvert"
                object.id = "64"
                object.serial = "69"
                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-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00"
                device.bus_path = "pci-0000:00:14.0-usb-0:4:1.0"
                device.enum.api = "udev"
                device.icon_name = "audio-card-analog-usb"
                device.name = "alsa_card.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX-00"
                device.nick = "Sound BlasterX G6"
                device.plugged.usec = "247676322"
                device.product.id = "0x3256"
                device.product.name = "Sound BlasterX G6"
                device.serial = "Creative_Technology_Ltd_Sound_BlasterX_G6_B700464F5BX"
                device.subsystem = "sound"
                sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.0/sound/card2"
                device.vendor.id = "0x041e"
                device.vendor.name = "Creative Technology, Ltd"
                device.string = "2"
        Ports:
                analog-input-linein: Line In (type: Line, priority: 8100, availability unknown)
        Active Port: analog-input-linein
        Formats:
                pcm

$ pactl list source-outputs
Source Output #203
        Driver: PipeWire
        Owner Module: n/a
        Client: 188
        Source: 48
        Sample Specification: s16le 2ch 48000Hz
        Channel Map: front-left,front-right
        Format: pcm, format.sample_format = "\"s16le\""  format.rate = "48000"  format.channels = "2"  format.channel_map = "\"front-left,front-right\""
        Corked: no
        Mute: no
        Volume: front-left: 65536 / 100% / 0,00 dB,   front-right: 65536 / 100% / 0,00 dB
                balance 0,00
        Buffer Latency: 0 usec
        Source Latency: 0 usec
        Resample method: PipeWire
        Properties:
                client.api = "pipewire-pulse"
                pulse.server.type = "unix"
                application.name = "WEBRTC VoiceEngine"
                application.process.id = "3592"
                application.process.user = "lorenzo"
                application.process.host = "greygoo"
                application.process.binary = "Discord"
                application.language = "it_IT.UTF-8"
                window.x11.display = ":1"
                application.process.machine_id = "f85df35eb58a4f5b9ace7ef2b20ebcf3"
                application.process.session_id = "2"
                media.name = "recStream"
                node.rate = "1/48000"
                node.latency = "1440/48000"
                stream.is-live = "true"
                node.name = "WEBRTC VoiceEngine"
                node.want-driver = "true"
                node.autoconnect = "true"
                media.class = "Stream/Input/Audio"
                adapt.follower.spa-node = ""
                object.register = "false"
                factory.id = "6"
                clock.quantum-limit = "8192"
                factory.mode = "merge"
                audio.adapt.follower = ""
                library.name = "audioconvert/libspa-audioconvert"
                client.id = "101"
                object.id = "83"
                object.serial = "203"
                pulse.attr.maxlength = "4194304"
                pulse.attr.fragsize = "5760"
                module-stream-restore.id = "source-output-by-application-name:WEBRTC VoiceEngine"