Virtual Microphone is silent

[Albert753258]

Describe the bug
null output, LADSPA Plugin Noise Suppressor for Voice (Mono) on Null Output And filtered microphone are silent

To Reproduce
I builded latest NoiseTorch from sources (also tried 0.12.2), but all of null output, LADSPA Plugin Noise Suppressor for Voice (Mono) on Null Output And filtered microphone are silent. My microphone was reported as stereo (but it is mono). Remapping it as stereo didn't helped

Expected behavior
Working noise cancelling

Screenshots

Logs

.local/bin/noisetorch -log
2023/10/29 20:53:53 Application starting. Version: v0.12.2-45-ge5c4d36 (custom)
2023/10/29 20:53:53 CAP_SYS_RESOURCE: true
2023/10/29 20:53:53 Checking if config needs to be initialized
2023/10/29 20:53:53 Couldn't resolve $XDG_CONFIG_HOME falling back to '/home/albert/.config'
2023/10/29 20:53:53 Wrote temp librnnoise to: /tmp/librnnoise-561744294.so
2023/10/29 20:53:53 Couldn't resolve $XDG_CONFIG_HOME falling back to '/home/albert/.config'
2023/10/29 20:53:53 Audioserver package name: pulseaudio
2023/10/29 20:53:53 Audioserver package version: 16.1
2023/10/29 20:53:53 Detected PulseAudio
2023/10/29 20:53:53 Getting caps for: /home/albert/.local/bin/noisetorch
2023/10/29 20:53:53 Audioserver package name: pulseaudio
2023/10/29 20:53:53 Audioserver package version: 16.1
2023/10/29 20:53:53 Detected PulseAudio
2023/10/29 20:53:53 Connected to audio server. Server name 'PulseAudio'
2023/10/29 20:53:53 Output alsa_output.pci-0000_01_00.1.hdmi-stereo, {Index:0 Name:alsa_output.pci-0000_01_00.1.hdmi-stereo Description:GP107GL High Definition Audio Controller Digital Stereo (HDMI) SampleSpec:{Format:3 Channels:2 Rate:44100} ChannelMap:[1 2] ModuleIndex:6 Cvolume:[0 0] Muted:true MonitorSourceIndex:0 MonitorSourceName:alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor Latency:36460 Driver:module-alsa-card.c Flags:422 PropList:map[alsa.card:1 alsa.card_name:HDA NVidia alsa.class:generic alsa.device:3 alsa.id:Generic Digital alsa.long_card_name:HDA NVidia at 0xa4000000 irq 17 alsa.name:Generic Digital alsa.resolution_bits:16 alsa.subclass:generic-mix alsa.subdevice:0 alsa.subdevice_name:subdevice #0 device.access_mode:mmap+timer device.api:alsa device.buffering.buffer_size:352768 device.buffering.fragment_size:176384 device.bus:pci device.bus_path:pci-0000:01:00.1 device.class:sound device.description:GP107GL High Definition Audio Controller Digital Stereo (HDMI) device.icon_name:audio-card-pci device.product.id:0fb9 device.product.name:GP107GL High Definition Audio Controller device.profile.description:Digital Stereo (HDMI) device.profile.name:hdmi-stereo device.string:hdmi:1 device.vendor.id:10de device.vendor.name:NVIDIA Corporation module-udev-detect.discovered:1 sysfs.path:/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1] RequestedLatency:40000 BaseVolume:65536 SinkState:1 NVolumeSteps:65537 CardIndex:0 Ports:[{Name:hdmi-output-0 Description:HDMI / DisplayPort Pririty:5900 Available:0}] ActivePortName:hdmi-output-0 Formats:[{Encoding:1 PropList:map[]}]}
2023/10/29 20:53:53 Output alsa_output.pci-0000_00_1f.3.analog-stereo, {Index:1 Name:alsa_output.pci-0000_00_1f.3.analog-stereo Description:Built-in Audio Analog Stereo SampleSpec:{Format:3 Channels:2 Rate:44100} ChannelMap:[1 2] ModuleIndex:7 Cvolume:[11231 10974] Muted:false MonitorSourceIndex:1 MonitorSourceName:alsa_output.pci-0000_00_1f.3.analog-stereo.monitor Latency:34296 Driver:module-alsa-card.c Flags:183 PropList:map[alsa.card:0 alsa.card_name:HDA Intel PCH alsa.class:generic alsa.device:0 alsa.id:ALC255 Analog alsa.long_card_name:HDA Intel PCH at 0xa4620000 irq 136 alsa.name:ALC255 Analog alsa.resolution_bits:16 alsa.subclass:generic-mix alsa.subdevice:0 alsa.subdevice_name:subdevice #0 device.access_mode:mmap+timer device.api:alsa device.buffering.buffer_size:352800 device.buffering.fragment_size:176400 device.bus:pci device.bus_path:pci-0000:00:1f.3 device.class:sound device.description:Built-in Audio Analog Stereo device.form_factor:internal device.icon_name:audio-card-pci device.product.id:a171 device.product.name:CM238 HD Audio Controller device.profile.description:Analog Stereo device.profile.name:analog-stereo device.string:front:0 device.vendor.id:8086 device.vendor.name:Intel Corporation module-udev-detect.discovered:1 sysfs.path:/devices/pci0000:00/0000:00:1f.3/sound/card0] RequestedLatency:40000 BaseVolume:65536 SinkState:1 NVolumeSteps:65537 CardIndex:1 Ports:[{Name:analog-output-speaker Description:Speakers Pririty:10000 Available:1} {Name:analog-output-headphones Description:Headphones Pririty:9900 Available:0}] ActivePortName:analog-output-headphones Formats:[{Encoding:1 PropList:map[]}]}
2023/10/29 20:53:56 Querying pulse rlimit
2023/10/29 20:53:56 Rlimit: {Cur:200000 Max:200000}. Trying to remove.
2023/10/29 20:53:56 Rlimit: {Cur:18446744073709551615 Max:18446744073709551615}
2023/10/29 20:53:56 Loading supressor for pulse
2023/10/29 20:53:56 Loaded null sink as idx: 31
2023/10/29 20:53:56 Loaded ladspa sink as idx: 32
2023/10/29 20:53:56 Loaded loopback as idx: 33
2023/10/29 20:53:56 Loaded remap source as idx: 34
2023/10/29 20:53:56 Couldn't resolve $XDG_CONFIG_HOME falling back to '/home/albert/.config

pactl list sources short
0	alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor	module-alsa-card.c	s16le 2ch 44100Hz	RUNNING
1	alsa_output.pci-0000_00_1f.3.analog-stereo.monitor	module-alsa-card.c	s16le 2ch 44100Hz	RUNNING
2	alsa_input.pci-0000_00_1f.3.analog-stereo	module-alsa-card.c	s16le 2ch 44100Hz	RUNNING
3	record_mono	module-remap-source.c	s16le 1ch 44100Hz	RUNNING
10	nui_mic_denoised_out.monitor	module-null-sink.c	s16le 2ch 48000Hz	RUNNING
11	nui_mic_raw_in.monitor	module-ladspa-sink.c	float32le 2ch 48000Hz	RUNNING
12	nui_mic_remap	module-remap-source.c	s16le 2ch 48000Hz	RUNNING

pactl list 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="1" name="pci-0000_01_00.1" card_name="alsa_card.pci-0000_01_00.1" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1"	
7	module-alsa-card	device_id="0" name="pci-0000_00_1f.3" card_name="alsa_card.pci-0000_00_1f.3" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1"	
8	module-bluetooth-policy		
9	module-bluetooth-discover		
10	module-bluez5-discover		
11	module-native-protocol-unix		
12	module-gsettings		
13	module-default-device-restore		
14	module-always-sink		
15	module-intended-roles		
16	module-suspend-on-idle		
17	module-systemd-login		
18	module-position-event-sounds		
19	module-role-cork		
20	module-filter-heuristics		
21	module-filter-apply		
22	module-remap-source	source_name=record_mono master=alsa_input.pci-0000_00_1f.3.analog-stereo master_channel_map=front-left channel_map=mono	
31	module-null-sink	sink_name=nui_mic_denoised_out rate=48000	
32	module-ladspa-sink	sink_name=nui_mic_raw_in sink_master=nui_mic_denoised_out label=nt-filter plugin=/tmp/librnnoise-561744294.so control=0	
33	module-loopback	source=record_mono sink=nui_mic_raw_in channels=1 latency_msec=1 source_dont_move=true sink_dont_move=true	
34	module-remap-source	master=nui_mic_denoised_out.monitor source_name=nui_mic_remap source_properties="device.description='Filtered Microphone for Remapped Built-in Audio Analog Stereo'"	
0	alsa_output.pci-0000_01_00.1.hdmi-stereo	module-alsa-card.c	s16le 2ch 44100Hz	IDLE
1	alsa_output.pci-0000_00_1f.3.analog-stereo	module-alsa-card.c	s16le 2ch 44100Hz	IDLE
6	nui_mic_denoised_out	module-null-sink.c	s16le 2ch 48000Hz	RUNNING
7	nui_mic_raw_in	module-ladspa-sink.c	float32le 2ch 48000Hz	RUNNING
0	alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor	module-alsa-card.c	s16le 2ch 44100Hz	RUNNING
1	alsa_output.pci-0000_00_1f.3.analog-stereo.monitor	module-alsa-card.c	s16le 2ch 44100Hz	RUNNING
2	alsa_input.pci-0000_00_1f.3.analog-stereo	module-alsa-card.c	s16le 2ch 44100Hz	RUNNING
3	record_mono	module-remap-source.c	s16le 1ch 44100Hz	RUNNING
10	nui_mic_denoised_out.monitor	module-null-sink.c	s16le 2ch 48000Hz	RUNNING
11	nui_mic_raw_in.monitor	module-ladspa-sink.c	float32le 2ch 48000Hz	RUNNING
12	nui_mic_remap	module-remap-source.c	s16le 2ch 48000Hz	RUNNING
11	6	-	module-ladspa-sink.c	float32le 2ch 48000Hz
12	7	-	module-loopback.c	s16le 1ch 44092Hz
0	2	-	module-remap-source.c	s16le 1ch 44100Hz
1	0	4	protocol-native.c	float32le 1ch 25Hz
2	1	4	protocol-native.c	float32le 1ch 25Hz
3	2	4	protocol-native.c	float32le 1ch 25Hz
4	3	4	protocol-native.c	float32le 1ch 25Hz
20	3	-	module-loopback.c	s16le 1ch 44100Hz
21	10	-	module-remap-source.c	s16le 2ch 48000Hz
22	10	4	protocol-native.c	float32le 1ch 25Hz
23	10	4	protocol-native.c	float32le 1ch 25Hz
24	11	4	protocol-native.c	float32le 1ch 25Hz
25	11	4	protocol-native.c	float32le 1ch 25Hz
26	12	4	protocol-native.c	float32le 1ch 25Hz
0	module-systemd-login.c	(null)
1	protocol-native.c	gnome-shell
2	protocol-native.c	gsd-power
4	protocol-native.c	pavucontrol
5	protocol-native.c	gnome-control-center
6	protocol-native.c	gnome-shell
7	protocol-native.c	gsd-media-keys
17	protocol-native.c	pactl
0	bell-window-system	s16le 2ch 44100Hz	0.387
0	alsa_card.pci-0000_01_00.1	module-alsa-card.c
1	alsa_card.pci-0000_00_1f.3	module-alsa-card.c

Desktop (please complete the following information):

• Gentoo
• Gnome 44.2
• Pulseaudio 1.16.1
• Builded from the latest sources and 0.12.2

[TheDukeofErl]

If my memory serves me correctly, Noisetorch actually will only grab one of the channels on a stereo audio device. Could you try muxing the the stereo to mono (or, alternatively, making sure the remapped stereo has audio on both channels) and try again? My guess here is that it's mono but is though to be stereo for whatever reason, so one of the channels has no audio on it, and that's the one NT is grabbing.

[Albert753258]

Please check this video. Right channel has very awfull sound, but left is normal. I am remapping stereo from left channel

load-module module-remap-source source_name=record_mono master=alsa_input.pci-0000_00_1f.3.analog-stereo master_channel_map=front-left channel_map=mono
set-default-source record_mono

simplescreenrecorder-2023-10-30_21.56.27.mp4