Microphone getting wired echo

tleydxdy · 2017-12-14 03:26:30

Using pulse audio 11.1, any sound from the microphone will have an echo about 1 second later that is a bit distorted (electric noise almost) that shows up on the volumeter. I don't have loopback loaded. However, when I ran this script which I found on the internet that let me play music through my mic,

#!/bin/bash

MICROPHONE="alsa_input.pci-0000_26_00.3.analog-stereo"
SPEAKERS="alsa_output.pci-0000_26_00.3.analog-stereo"

# Create the null sinks
# virtual1 gets your audio source (mplayer ...) only
# virtual2 gets virtual1 + micro
pactl load-module module-null-sink sink_name=virtual1 sink_properties=device.description="virtual1"
pactl load-module module-null-sink sink_name=virtual2 sink_properties=device.description="virtual2"

# Now create the loopback devices, all arguments are optional and can be configured with pavucontrol
pactl load-module module-loopback source=virtual1.monitor sink=$SPEAKERS
pactl load-module module-loopback source=virtual1.monitor sink=virtual2
pactl load-module module-loopback source=$MICROPHONE sink=virtual2

the echo went a way (not even showing up on the volumeter of my mic (HD-Audio blabla)).

Not sure where to even start troubleshoot.

Last edited by tleydxdy (2017-12-14 03:29:50)

tleydxdy · 2017-12-16 00:48:56

Are there any probable causes?

V1del · 2017-12-16 07:39:00

Post some more info during a recording with the echo present, in particular

amixer -c$aplay -l card index$
pacmd list-cards
pacmd list-sources
pacmd list-source-outputs
pactl list modules short

Any power saving on the audio controller via TLP or similar?

It isn't surprising that redirecting your audio output through the mic doesn't show the behaviour, since the hardware is technically being bypassed completely.

In the future, please don't bump your thread

tleydxdy · 2017-12-16 21:03:24

Here are some of the outputs:

$ aplay -l card index
**** 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 0: HDMI [HDA ATI HDMI], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA ATI HDMI], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA ATI HDMI], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA ATI HDMI], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA ATI HDMI], device 11: HDMI 5 [HDMI 5]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 0: ALC1220 Analog [ALC1220 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 1: ALC1220 Digital [ALC1220 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

$ amixer -c 1
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 45 [52%] [-31.50dB] [on]
Simple mixer control 'Headphone',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 'Front',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 'Front Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Front Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'Surround',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 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Line Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958 Default PCM',0
  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 55 [87%] [24.00dB] [on]
  Front Right: Capture 55 [87%] [24.00dB] [on]
Simple mixer control 'Capture',1
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 63
  Front Left: Capture 0 [0%] [-17.25dB] [off]
  Front Right: Capture 0 [0%] [-17.25dB] [off]
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Enabled'
Simple mixer control 'Input Source',0
  Capabilities: cenum
  Items: 'Front Mic' 'Rear Mic' 'Line'
  Item0: 'Front Mic'
Simple mixer control 'Input Source',1
  Capabilities: cenum
  Items: 'Front Mic' 'Rear Mic' 'Line'
  Item0: 'Front Mic'
Simple mixer control 'Loopback Mixing',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Disabled'
Simple mixer control 'Rear Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Rear Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]

$ pacmd list-cards
2 card(s) available.
    index: 0
	name: <alsa_card.pci-0000_24_00.1>
	driver: <module-alsa-card.c>
	owner module: 6
	properties:
		alsa.card = "0"
		alsa.card_name = "HDA ATI HDMI"
		alsa.long_card_name = "HDA ATI HDMI at 0xfe860000 irq 64"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:24:00.1"
		sysfs.path = "/devices/pci0000:00/0000:00:03.1/0000:24:00.1/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		device.product.id = "aaf0"
		device.product.name = "Ellesmere [Radeon RX 580]"
		device.string = "0"
		device.description = "Ellesmere [Radeon RX 580]"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		output:hdmi-stereo: Digital Stereo (HDMI) 输出 (priority 5400, available: no)
		output:hdmi-surround: Digital Surround 5.1 (HDMI) 输出 (priority 300, available: no)
		output:hdmi-surround71: Digital Surround 7.1 (HDMI) 输出 (priority 300, available: no)
		output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) 输出 (priority 5200, available: no)
		output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) 输出 (priority 100, available: no)
		output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) 输出 (priority 100, available: no)
		output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) 输出 (priority 5200, available: no)
		output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) 输出 (priority 100, available: no)
		output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) 输出 (priority 100, available: no)
		output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) 输出 (priority 5200, available: no)
		output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) 输出 (priority 100, available: no)
		output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) 输出 (priority 100, available: no)
		output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) 输出 (priority 5200, available: no)
		output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) 输出 (priority 100, available: no)
		output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) 输出 (priority 100, available: no)
		output:hdmi-stereo-extra5: Digital Stereo (HDMI 6) 输出 (priority 5200, available: no)
		output:hdmi-surround-extra5: Digital Surround 5.1 (HDMI 6) 输出 (priority 100, available: no)
		output:hdmi-surround71-extra5: Digital Surround 7.1 (HDMI 6) 输出 (priority 100, available: no)
		off: 关 (priority 0, available: unknown)
	active profile: <off>
	ports:
		hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-5: HDMI / DisplayPort 6 (priority 5400, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
    index: 1
	name: <alsa_card.pci-0000_26_00.3>
	driver: <module-alsa-card.c>
	owner module: 7
	properties:
		alsa.card = "1"
		alsa.card_name = "HD-Audio Generic"
		alsa.long_card_name = "HD-Audio Generic at 0xfe700000 irq 66"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:26:00.3"
		sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:26:00.3/sound/card1"
		device.bus = "pci"
		device.vendor.id = "1022"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
		device.product.id = "1457"
		device.string = "1"
		device.description = "HD-Audio Generic"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		input:analog-stereo: 模拟立体声 输入 (priority 60, available: unknown)
		output:analog-stereo: 模拟立体声 输出 (priority 6000, available: unknown)
		output:analog-stereo+input:analog-stereo: 模拟立体声双工 (priority 6060, available: unknown)
		output:analog-surround-21: 模拟环绕 2.1 输出 (priority 800, available: no)
		output:analog-surround-21+input:analog-stereo: 模拟环绕 2.1 输出 + 模拟立体声 输入 (priority 860, available: unknown)
		output:analog-surround-40: 模拟环绕 4.0 输出 (priority 700, available: no)
		output:analog-surround-40+input:analog-stereo: 模拟环绕 4.0 输出 + 模拟立体声 输入 (priority 760, available: unknown)
		output:analog-surround-41: 模拟环绕 4.1 输出 (priority 800, available: no)
		output:analog-surround-41+input:analog-stereo: 模拟环绕 4.1 输出 + 模拟立体声 输入 (priority 860, available: unknown)
		output:analog-surround-50: 模拟环绕 5.0 输出 (priority 700, available: no)
		output:analog-surround-50+input:analog-stereo: 模拟环绕 5.0 输出 + 模拟立体声 输入 (priority 760, available: unknown)
		output:analog-surround-51: 模拟环绕 5.1 输出 (priority 800, available: no)
		output:analog-surround-51+input:analog-stereo: 模拟环绕 5.1 输出 + 模拟立体声 输入 (priority 860, available: unknown)
		output:iec958-stereo: 数字立体声(IEC958) 输出 (priority 5500, available: unknown)
		output:iec958-stereo+input:analog-stereo: 数字立体声(IEC958) 输出 + 模拟立体声 输入 (priority 5560, available: unknown)
		off: 关 (priority 0, available: unknown)
	active profile: <output:analog-stereo+input:analog-stereo>
	sinks:
		alsa_output.pci-0000_26_00.3.analog-stereo/#0: HD-Audio Generic 模拟立体声
	sources:
		alsa_output.pci-0000_26_00.3.analog-stereo.monitor/#0: Monitor of HD-Audio Generic 模拟立体声
		alsa_input.pci-0000_26_00.3.analog-stereo/#1: HD-Audio Generic 模拟立体声
	ports:
		analog-input-front-mic: 前麦克风 (priority 8500, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-rear-mic: 后麦克风 (priority 8200, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-linein: 输入插孔 (priority 8100, latency offset 0 usec, available: no)
			properties:
				
		analog-output-lineout: 线缆输出 (priority 9900, latency offset 0 usec, available: no)
			properties:
				
		analog-output-headphones: 模拟耳机 (priority 9000, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-headphones"
		iec958-stereo-output: 数字输出 (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
			properties:

$ pacmd list-sources
2 source(s) available.
  * index: 0
	name: <alsa_output.pci-0000_26_00.3.analog-stereo.monitor>
	driver: <module-alsa-card.c>
	flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: 
	priority: 1030
	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
	volume steps: 65537
	muted: no
	current latency: 0.00 ms
	max rewind: 344 KiB
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             立体声
	used by: 2
	linked by: 2
	configured latency: 24.99 ms; range is 0.50 .. 1999.82 ms
	monitor_of: 0
	card: 1 <alsa_card.pci-0000_26_00.3>
	module: 7
	properties:
		device.description = "Monitor of HD-Audio Generic 模拟立体声"
		device.class = "monitor"
		alsa.card = "1"
		alsa.card_name = "HD-Audio Generic"
		alsa.long_card_name = "HD-Audio Generic at 0xfe700000 irq 66"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:26:00.3"
		sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:26:00.3/sound/card1"
		device.bus = "pci"
		device.vendor.id = "1022"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
		device.product.id = "1457"
		device.string = "1"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
    index: 1
	name: <alsa_input.pci-0000_26_00.3.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: 
	priority: 9039
	volume: front-left: 16379 /  25% / -36.13 dB,   front-right: 16379 /  25% / -36.13 dB
	        balance 0.00
	base volume: 6554 /  10% / -60.00 dB
	volume steps: 65537
	muted: no
	current latency: 0.04 ms
	max rewind: 0 KiB
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             立体声
	used by: 2
	linked by: 2
	configured latency: 24.99 ms; range is 0.50 .. 1999.82 ms
	card: 1 <alsa_card.pci-0000_26_00.3>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "ALC1220 Analog"
		alsa.id = "ALC1220 Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "1"
		alsa.card_name = "HD-Audio Generic"
		alsa.long_card_name = "HD-Audio Generic at 0xfe700000 irq 66"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:26:00.3"
		sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:26:00.3/sound/card1"
		device.bus = "pci"
		device.vendor.id = "1022"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
		device.product.id = "1457"
		device.string = "front:1"
		device.buffering.buffer_size = "352768"
		device.buffering.fragment_size = "176384"
		device.access_mode = "mmap+timer"
		device.profile.name = "analog-stereo"
		device.profile.description = "模拟立体声"
		device.description = "HD-Audio Generic 模拟立体声"
		alsa.mixer_name = "Realtek ALC1220"
		alsa.components = "HDA:10ec1220,1462da32,00100003"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		analog-input-front-mic: 前麦克风 (priority 8500, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-rear-mic: 后麦克风 (priority 8200, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-linein: 输入插孔 (priority 8100, latency offset 0 usec, available: no)
			properties:
				
	active port: <analog-input-front-mic>

$ pacmd list-source-outputs
4 source output(s) available.
    index: 2
	driver: <protocol-native.c>
	flags: DONT_MOVE 
	state: RUNNING
	source: 0 <alsa_output.pci-0000_26_00.3.analog-stereo.monitor>
	volume: mono: 65536 / 100% / 0.00 dB
	        balance 0.00
	muted: no
	current latency: 14.92 ms
	requested latency: 40.00 ms
	sample spec: float32le 1ch 25Hz
	channel map: mono
	             单声道
	resample method: peaks
	owner module: 9
	client: 11 <PulseAudio Volume Control>
	properties:
		media.name = "Peak detect"
		application.name = "PulseAudio Volume Control"
		native-protocol.peer = "UNIX socket client"
		native-protocol.version = "32"
		application.id = "org.PulseAudio.pavucontrol"
		application.icon_name = "audio-card"
		application.version = "3.0"
		application.process.id = "28958"
		application.process.user = "tleydxdy"
		application.process.host = "crap-DT"
		application.process.binary = "pavucontrol"
		application.language = "en_US.utf8"
		window.x11.display = ":0"
		application.process.machine_id = "4324dd089e0046cb8a9c6e54a2747f68"
		application.process.session_id = "c4"
		module-stream-restore.id = "source-output-by-application-id:org.PulseAudio.pavucontrol"
    index: 3
	driver: <protocol-native.c>
	flags: DONT_MOVE 
	state: RUNNING
	source: 1 <alsa_input.pci-0000_26_00.3.analog-stereo>
	volume: mono: 65536 / 100% / 0.00 dB
	        balance 0.00
	muted: no
	current latency: 0.00 ms
	requested latency: 40.00 ms
	sample spec: float32le 1ch 25Hz
	channel map: mono
	             单声道
	resample method: peaks
	owner module: 9
	client: 11 <PulseAudio Volume Control>
	properties:
		media.name = "Peak detect"
		application.name = "PulseAudio Volume Control"
		native-protocol.peer = "UNIX socket client"
		native-protocol.version = "32"
		application.id = "org.PulseAudio.pavucontrol"
		application.icon_name = "audio-card"
		application.version = "3.0"
		application.process.id = "28958"
		application.process.user = "tleydxdy"
		application.process.host = "crap-DT"
		application.process.binary = "pavucontrol"
		application.language = "en_US.utf8"
		window.x11.display = ":0"
		application.process.machine_id = "4324dd089e0046cb8a9c6e54a2747f68"
		application.process.session_id = "c4"
		module-stream-restore.id = "source-output-by-application-id:org.PulseAudio.pavucontrol"
    index: 4
	driver: <protocol-native.c>
	flags: 
	state: RUNNING
	source: 0 <alsa_output.pci-0000_26_00.3.analog-stereo.monitor>
	volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
	        balance 0.00
	muted: no
	current latency: 14.92 ms
	requested latency: 24.99 ms
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             立体声
	resample method: (null)
	owner module: 9
	client: 82 <OBS>
	properties:
		application.name = "OBS"
		application.icon_name = "obs"
		media.role = "production"
		media.name = "Desktop Audio"
		native-protocol.peer = "UNIX socket client"
		native-protocol.version = "32"
		application.process.id = "30367"
		application.process.user = "tleydxdy"
		application.process.host = "crap-DT"
		application.process.binary = "obs"
		application.language = "en_US.utf8"
		window.x11.display = ":0"
		application.process.machine_id = "4324dd089e0046cb8a9c6e54a2747f68"
		application.process.session_id = "c4"
		module-stream-restore.id = "source-output-by-media-role:production"
    index: 6
	driver: <protocol-native.c>
	flags: 
	state: RUNNING
	source: 1 <alsa_input.pci-0000_26_00.3.analog-stereo>
	volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
	        balance 0.00
	muted: no
	current latency: 0.00 ms
	requested latency: 24.99 ms
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             立体声
	resample method: (null)
	owner module: 9
	client: 82 <OBS>
	properties:
		application.name = "OBS"
		application.icon_name = "obs"
		media.role = "production"
		media.name = "Audio Input Capture (PulseAudio)"
		native-protocol.peer = "UNIX socket client"
		native-protocol.version = "32"
		application.process.id = "30367"
		application.process.user = "tleydxdy"
		application.process.host = "crap-DT"
		application.process.binary = "obs"
		application.language = "en_US.utf8"
		window.x11.display = ":0"
		application.process.machine_id = "4324dd089e0046cb8a9c6e54a2747f68"
		application.process.session_id = "c4"
		module-stream-restore.id = "source-output-by-media-role:production"

$ pactl list modules short
0	module-device-restore		
1	module-stream-restore		
2	module-card-restore		
3	module-augment-properties		
4	module-switch-on-port-available		
5	module-udev-detect		
6	module-alsa-card	device_id="0" name="pci-0000_24_00.1" card_name="alsa_card.pci-0000_24_00.1" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes card_properties="module-udev-detect.discovered=1"	
7	module-alsa-card	device_id="1" name="pci-0000_26_00.3" card_name="alsa_card.pci-0000_26_00.3" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes card_properties="module-udev-detect.discovered=1"	
8	module-esound-protocol-unix		
9	module-native-protocol-unix		
10	module-gconf		
11	module-default-device-restore		
12	module-rescue-streams		
13	module-always-sink		
14	module-intended-roles		
15	module-suspend-on-idle		
16	module-console-kit		
17	module-systemd-login		
18	module-position-event-sounds		
19	module-role-cork		
20	module-filter-heuristics		
21	module-filter-apply		
22	module-cli-protocol-unix

V1del wrote:

Any power saving on the audio controller via TLP or similar?

I didn't explict enable anything like that and I didn't have LTP installed.

V1del wrote:

It isn't surprising that redirecting your audio output through the mic doesn't show the behaviour, since the hardware is technically being bypassed completely.

Since the script also passed in my mic alone with the music so I guess this doesn't seem to be the reason.

V1del wrote:

In the future, please don't bump your thread

Sorry...

Here is a sound sample I recorded using obs, in the clip, I clapped once.

Last edited by tleydxdy (2017-12-16 21:24:00)

Arch Linux

#1 2017-12-14 03:26:30

Microphone getting wired echo

#2 2017-12-16 00:48:56

Re: Microphone getting wired echo

#3 2017-12-16 07:39:00

Re: Microphone getting wired echo

#4 2017-12-16 21:03:24

Re: Microphone getting wired echo

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