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#1 2020-04-16 18:06:15

causasui
Member
Registered: 2013-04-04
Posts: 65

[SOLVED] ffmpeg / obs only capture mic but not "desktop" pulseaudio

I observe this regardless of which audio source I use, including those labeled "Desktop audio" and such. I thought this was just a problem with my OBS setup but then I tried it with ffmpeg and got the same outcome. Then with RecordMyDesktop since maybe I did something wrong with ffmpeg, but it too records only my microphone.

I suspect that in all my fumbling around with this, I must have crossed some wires in the configuration with pulseaudio. I want to wipe the whole thing and start over, but reinstalling pulseaudio has not helped either.

How can I "reset" pulseaudio? To be clear, I'm not sure that would fix this problem, but it would remove a lot of variables from the troubleshooting process.

Any other suggestions are also welcome of course. Thanks

Last edited by causasui (2020-04-18 19:56:50)

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#2 2020-04-16 19:52:03

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 25,064

Re: [SOLVED] ffmpeg / obs only capture mic but not "desktop" pulseaudio

https://wiki.archlinux.org/index.php/Pu … tion_files

If that doesn't help and you want help with the actual problem, post during a "recording" attempt 

pacmd list-cards
pacmd list-sources
pacmd list-source-outputs

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#3 2020-04-16 21:51:06

causasui
Member
Registered: 2013-04-04
Posts: 65

Re: [SOLVED] ffmpeg / obs only capture mic but not "desktop" pulseaudio

I have: deleted ~/.config/pulse -> pacman -Syu -> reboot

Here's the output of the commands you listed while "recordmydesktop" is running:

+ line 0: pacmd list-cards
2 card(s) available.
    index: 0
	name: <alsa_card.pci-0000_01_00.1>
	driver: <module-alsa-card.c>
	owner module: 6
	properties:
		alsa.card = "1"
		alsa.card_name = "HDA NVidia"
		alsa.long_card_name = "HDA NVidia at 0xa4080000 irq 17"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:01:00.1"
		sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1"
		device.bus = "pci"
		device.vendor.id = "10de"
		device.vendor.name = "NVIDIA Corporation"
		device.product.id = "10fa"
		device.string = "1"
		device.description = "HDA NVidia"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: unknown)
		output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: unknown)
		output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: unknown)
		output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
		output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
		output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
		output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
		output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
		output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
		output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
		output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
		output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
		output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
		output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
		output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
		output:hdmi-stereo-extra5: Digital Stereo (HDMI 6) Output (priority 5700, available: no)
		output:hdmi-surround-extra5: Digital Surround 5.1 (HDMI 6) Output (priority 600, available: no)
		output:hdmi-surround71-extra5: Digital Surround 7.1 (HDMI 6) Output (priority 600, available: no)
		off: Off (priority 0, available: unknown)
	active profile: <output:hdmi-stereo>
	sinks:
		alsa_output.pci-0000_01_00.1.hdmi-stereo/#3: HDA NVidia Digital Stereo (HDMI)
	sources:
		alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor/#4: Monitor of HDA NVidia Digital Stereo (HDMI)
	ports:
		hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "video-display"
				device.product.name = "Acer KG240 A
"
		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_00_1f.3>
	driver: <module-alsa-card.c>
	owner module: 7
	properties:
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0xa4410000 irq 158"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a348"
		device.product.name = "Cannon Lake PCH cAVS"
		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: unknown)
		output:analog-stereo: Analog Stereo Output (priority 6500, available: unknown)
		output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
		output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
		output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 5965, available: no)
		output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
		output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
		output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
		output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
		output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
		output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (priority 5765, available: no)
		output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
		output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
		output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
		output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
		output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
		output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (priority 5765, available: no)
		output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
		output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
		output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
		output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
		output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
		output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (priority 5765, available: no)
		output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
		output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: no)
		output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
		output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: no)
		output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
		output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (priority 5765, available: no)
		output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
		output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: no)
		output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
		output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: no)
		off: Off (priority 0, available: unknown)
	active profile: <output:analog-stereo+input:analog-stereo>
	sinks:
		alsa_output.pci-0000_00_1f.3.analog-stereo/#0: Built-in Audio Analog Stereo
	sources:
		alsa_output.pci-0000_00_1f.3.analog-stereo.monitor/#0: Monitor of Built-in Audio Analog Stereo
		alsa_input.pci-0000_00_1f.3.analog-stereo/#1: Built-in Audio Analog Stereo
	ports:
		analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-speakers"
		analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-headphones"
		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"
+ line 0: pacmd list-sources
4 source(s) available.
    index: 0
	name: <alsa_output.pci-0000_00_1f.3.analog-stereo.monitor>
	driver: <module-alsa-card.c>
	flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: IDLE
	suspend cause: (none)
	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: 10 KiB
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             Stereo
	used by: 0
	linked by: 0
	configured latency: 2000.00 ms; range is 0.50 .. 2000.00 ms
	monitor_of: 0
	card: 1 <alsa_card.pci-0000_00_1f.3>
	module: 7
	properties:
		device.description = "Monitor of Built-in Audio Analog Stereo"
		device.class = "monitor"
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0xa4410000 irq 158"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a348"
		device.product.name = "Cannon Lake PCH cAVS"
		device.form_factor = "internal"
		device.string = "0"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
  * index: 1
	name: <alsa_input.pci-0000_00_1f.3.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: SUSPENDED
	suspend cause: IDLE
	priority: 9039
	volume: front-left: 10387 /  16% / -48.00 dB,   front-right: 10387 /  16% / -48.00 dB
	        balance 0.00
	base volume: 6554 /  10% / -60.00 dB
	volume steps: 65537
	muted: no
	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 0.50 .. 2000.00 ms
	card: 1 <alsa_card.pci-0000_00_1f.3>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "ALC269VC Analog"
		alsa.id = "ALC269VC Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0xa4410000 irq 158"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a348"
		device.product.name = "Cannon Lake PCH cAVS"
		device.form_factor = "internal"
		device.string = "front:0"
		device.buffering.buffer_size = "352800"
		device.buffering.fragment_size = "176400"
		device.access_mode = "mmap+timer"
		device.profile.name = "analog-stereo"
		device.profile.description = "Analog Stereo"
		device.description = "Built-in Audio Analog Stereo"
		alsa.mixer_name = "Realtek ALC269VC"
		alsa.components = "HDA:10ec0269,1d051064,00100203 HDA:8086280b,80860101,00100000"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
	active port: <analog-input-internal-mic>
    index: 2
	name: <combined.monitor>
	driver: <module-combine-sink.c>
	flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: SUSPENDED
	suspend cause: IDLE
	priority: 1000
	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: 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 0.50 .. 200.00 ms
	monitor_of: 1
	module: 11
	properties:
		device.description = "Monitor Source of Simultaneous output to Built-in Audio Analog Stereo, HDA NVidia Digital Stereo (HDMI)"
		device.class = "monitor"
		device.icon_name = "audio-input-microphone"
    index: 4
	name: <alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor>
	driver: <module-alsa-card.c>
	flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: SUSPENDED
	suspend cause: IDLE
	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: 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 0.50 .. 1999.82 ms
	monitor_of: 3
	card: 0 <alsa_card.pci-0000_01_00.1>
	module: 6
	properties:
		device.description = "Monitor of HDA NVidia Digital Stereo (HDMI)"
		device.class = "monitor"
		alsa.card = "1"
		alsa.card_name = "HDA NVidia"
		alsa.long_card_name = "HDA NVidia at 0xa4080000 irq 17"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:01:00.1"
		sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1"
		device.bus = "pci"
		device.vendor.id = "10de"
		device.vendor.name = "NVIDIA Corporation"
		device.product.id = "10fa"
		device.string = "1"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
+ line 0: pacmd list-source-outputs
0 source output(s) available.

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#4 2020-04-16 23:19:22

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 25,064

Re: [SOLVED] ffmpeg / obs only capture mic but not "desktop" pulseaudio

You aren't recording via pulse, configure it to use pulseaudio, maybe throw in 

sudo fuser -v /dev/snd/*

.

Last edited by V1del (2020-04-16 23:20:20)

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#5 2020-04-17 00:48:09

causasui
Member
Registered: 2013-04-04
Posts: 65

Re: [SOLVED] ffmpeg / obs only capture mic but not "desktop" pulseaudio

$ sudo fuser -v /dev/snd/*
[sudo] password for ryan: 
                     USER        PID ACCESS COMMAND
/dev/snd/controlC0:  ryan       1418 F.... pulseaudio
/dev/snd/controlC1:  ryan       1418 F.... pulseaudio
/dev/snd/pcmC0D0c:   ryan      294191 F...m recordmydesktop
/dev/snd/pcmC0D0p:   ryan       1418 F...m pulseaudio

Edit: In pavucontrol I can't see any device recording either. It sure is odd how all 3 applications cannot find the desktop audio though, however I configure them.

Edit 2:

$ pactl info
Server String: /run/user/1000/pulse/native
Library Protocol Version: 33
Server Protocol Version: 33
Is Local: yes
Client Index: 31
Tile Size: 65472
User Name: ryan
Host Name: iris
Server Name: pulseaudio
Server Version: 13.0
Default Sample Specification: s16le 2ch 44100Hz
Default Channel Map: front-left,front-right
Default Sink: alsa_output.pci-0000_00_1f.3.analog-stereo
Default Source: alsa_output.pci-0000_00_1f.3.analog-stereo.monitor
Cookie: 1b9c:bbc1

Last edited by causasui (2020-04-17 01:07:16)

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#6 2020-04-17 07:00:47

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 25,064

Re: [SOLVED] ffmpeg / obs only capture mic but not "desktop" pulseaudio

I'm not sure about recordmydesktop but I'm definitely certain that OBS and ffmpeg have native and proper pulse and thus desktop audio support (you might want to post terminal outputs of these).  According to the fuser output you don't have conflicting sound applications running (though we do see that indeed recordmydesktop is directly using the normal mic capture), so that's good. Do you have any ALSA configuration files? How do they look like?  IF you use pulseaudio you should ideally not have any, other than /etc/asound.conf as provided by pulseaudio-alsa and then instruct ALSA only applications to use the 'default' device.

Last edited by V1del (2020-04-17 07:05:37)

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#7 2020-04-18 19:56:16

causasui
Member
Registered: 2013-04-04
Posts: 65

Re: [SOLVED] ffmpeg / obs only capture mic but not "desktop" pulseaudio

It's working now. No idea why. Maybe a bug was fixed in an upgrade. Classic 'as soon as someone looked it starts working'. Thanks a lot anyway and I'll mark this thread solved.

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