Music&Video

Convert MP4 to MP3 files

• general options

ffmpeg -v 5 -y -i input.mp4 -acodec libmp3lame -ac 2 -ab 192k output.mp3

• general from scipt *

ffmpeg -v 5 -y -i input.mp4 -acodec libmp3lame -ac 2 -ab 192k output.mp3 < /dev/null

3 steps to find out and test a microphone on linux with alsa

1) find out cards and inputs

shell> cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xff950000 irq 22
 1 [HVR900         ]: USB-Audio - WinTV HVR-900
                      WinTV HVR-900 at usb-0000:00:1a.7-3, high speed
 2 [Webcam         ]: USB-Audio - Philips SPC 1000NC Webcam
                      Philips CE Philips SPC 1000NC Webcam at
usb-0000:00:1a.7-5.4, high speed

=> I'm going to use the Webcam built in mic => card # 2

2) find out the input

shell> cat /proc/asound/devices
  0: [ 0]   : control
  1:        : sequencer
  6: [ 0- 2]: hardware dependent
  7: [ 0- 3]: hardware dependent
 16: [ 0- 0]: digital audio playback
 17: [ 0- 1]: digital audio playback
 19: [ 0- 3]: digital audio playback
 24: [ 0- 0]: digital audio capture
 32: [ 1]   : control
 33:        : timer
 56: [ 1- 0]: digital audio capture
 64: [ 2]   : control
 88: [ 2- 0]: digital audio capture

=> my input is the capture on the second card

 88: [ 2- 0]: digital audio capture

3) so no we can test the mic

shell> arecord -c1 -Dplughw:2,0 -f cd -vv /dev/null

PulseAudio

 pactl stat

 Currently in use: 17 blocks containing 216,3 KiB bytes total.
 Allocated during whole lifetime: 947139 blocks containing 1,6 GiB bytes total.
 Sample cache size: 0 B
 Server String: /tmp/pulse-EPQnHaSCnLWC/native
 Library Protocol Version: 26
 Server Protocol Version: 26
 Is Local: yes
 Client Index: 17
 Tile Size: 65472
 User Name: emanoil
 Host Name: maistor
 Server Name: pulseaudio
 Server Version: 2.0
 Default Sample Specification: s16le 2ch 44100Hz
 Default Channel Map: front-left,front-right
 Default Sink: alsa_output.pci-0000_00_1b.0.analog-stereo
 Default Source: alsa_input.usb-Philips_CE_Philips_SPC_1030NC_Webcam-02-Webcam.analog-mono
 Cookie: 9cec:902b

 Module #0
       Name: module-device-restore
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Automatically restore the volume/mute state of devices"
               module.version = "2.0"

 Module #1
       Name: module-stream-restore
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Automatically restore the volume/mute/device state of streams"
               module.version = "2.0"

 Module #2
       Name: module-card-restore
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Automatically restore profile of cards"
               module.version = "2.0"

 Module #3
       Name: module-augment-properties
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Augment the property sets of streams with additional static information"
               module.version = "2.0"

 Module #4
       Name: module-alsa-card
       Argument: device_id="0" name="pci-0000_00_1b.0" card_name="alsa_card.pci-0000_00_1b.0" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes card_properties="module-udev-detect.discovered=1"
       Usage counter: 1
       Properties:
               module.author = "Lennart Poettering"
               module.description = "ALSA Card"
               module.version = "2.0"

 Module #5
       Name: module-alsa-card
       Argument: device_id="1" name="usb-Philips_CE_Philips_SPC_1030NC_Webcam-02-Webcam" card_name="alsa_card.usb-Philips_CE_Philips_SPC_1030NC_Webcam-02-Webcam" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes card_properties="module-udev-detect.discovered=1"
       Usage counter: 0
       Properties:
               module.author = "Lennart Poettering"
               module.description = "ALSA Card"
               module.version = "2.0"

 Module #6
       Name: module-udev-detect
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Detect available audio hardware and load matching drivers"
               module.version = "2.0"

 Module #7
       Name: module-native-protocol-unix
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Native protocol (UNIX sockets)"
               module.version = "2.0"

 Module #8
       Name: module-default-device-restore
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Automatically restore the default sink and source"
               module.version = "2.0"

 Module #9
       Name: module-rescue-streams
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "When a sink/source is removed, try to move their streams to the default sink/source"
               module.version = "2.0"

 Module #10
       Name: module-always-sink
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Colin Guthrie"
               module.description = "Always keeps at least one sink loaded even if it's a null one"
               module.version = "2.0"

 Module #11
       Name: module-intended-roles
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Automatically set device of streams based of intended roles of devices"
               module.version = "2.0"

 Module #12
       Name: module-suspend-on-idle
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "When a sink/source is idle for too long, suspend it"
               module.version = "2.0"

 Module #13
       Name: module-console-kit
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Create a client for each ConsoleKit session of this user"
               module.version = "2.0"

 Module #14
       Name: module-systemd-login
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Create a client for each login session of this user"
               module.version = "2.0"

 Module #15
       Name: module-position-event-sounds
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Lennart Poettering"
               module.description = "Position event sounds between L and R depending on the position on screen of the widget triggering them."
               module.version = "2.0"

 Module #16
       Name: module-filter-heuristics
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Colin Guthrie"
               module.description = "Detect when various filters are desirable"
               module.version = "2.0"

 Module #17
       Name: module-filter-apply
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Colin Guthrie"
               module.description = "Load filter sinks automatically when needed"
               module.version = "2.0"

 Module #18
       Name: module-dbus-protocol
       Argument:
       Usage counter: n/a
       Properties:
               module.author = "Tanu Kaskinen"
               module.description = "D-Bus interface"
               module.version = "2.0"

 Module #19
       Name: module-switch-on-port-available
       Argument:
       Usage counter: n/a
       Properties:

 Sink #0
       State: SUSPENDED
       Name: alsa_output.pci-0000_00_1b.0.analog-stereo
       Description: Built-in Audio Analog Stereo
       Driver: module-alsa-card.c
       Sample Specification: s16le 2ch 48000Hz
       Channel Map: front-left,front-right
       Owner Module: 4
       Mute: no
       Volume: 0:  19% 1:  19%
               0: -42,60 dB 1: -42,60 dB
               balance 0,00
       Base Volume: 100%
                    0,00 dB
       Monitor Source: alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
       Latency: 0 usec, configured 0 usec
       Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
       Properties:
               alsa.resolution_bits = "16"
               device.api = "alsa"
               device.class = "sound"
               alsa.class = "generic"
               alsa.subclass = "generic-mix"
               alsa.name = "STAC9200 Analog"
               alsa.id = "STAC9200 Analog"
               alsa.subdevice = "0"
               alsa.subdevice_name = "subdevice #0"
               alsa.device = "0"
               alsa.card = "0"
               alsa.card_name = "HDA Intel"
               alsa.long_card_name = "HDA Intel at 0xefebc000 irq 43"
               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.name = "NM10/ICH7 Family High Definition Audio Controller"
               device.form_factor = "internal"
               device.string = "front:0"
               device.buffering.buffer_size = "65536"
               device.buffering.fragment_size = "32768"
               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 = "SigmaTel STAC9200"
               alsa.components = "HDA:83847690,102801d4,00102201 HDA:14f12bfa,14f100c3,00090000"
               module-udev-detect.discovered = "1"
               device.icon_name = "audio-card-pci"
       Ports:
               analog-output: Analog Output (priority: 9900)
       Active Port: analog-output
       Formats:
               pcm

 Source #0
       State: SUSPENDED
       Name: alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
       Description: Monitor of Built-in Audio Analog Stereo
       Driver: module-alsa-card.c
       Sample Specification: s16le 2ch 44100Hz
       Channel Map: front-left,front-right
       Owner Module: 4
       Mute: no
       Volume: 0: 100% 1: 100%
               0: 0,00 dB 1: 0,00 dB
               balance 0,00
       Base Volume: 100%
                    0,00 dB
       Monitor of Sink: alsa_output.pci-0000_00_1b.0.analog-stereo
       Latency: 0 usec, configured 0 usec
       Flags: DECIBEL_VOLUME LATENCY
       Properties:
               device.description = "Monitor of Built-in Audio Analog Stereo"
               device.class = "monitor"
               alsa.card = "0"
               alsa.card_name = "HDA Intel"
               alsa.long_card_name = "HDA Intel at 0xefebc000 irq 43"
               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.name = "NM10/ICH7 Family High Definition Audio Controller"
               device.form_factor = "internal"
               device.string = "0"
               module-udev-detect.discovered = "1"
               device.icon_name = "audio-card-pci"
       Formats:
               pcm

 Source #1
       State: SUSPENDED
       Name: alsa_input.pci-0000_00_1b.0.analog-stereo
       Description: Built-in Audio Analog Stereo
       Driver: module-alsa-card.c
       Sample Specification: s16le 2ch 44100Hz
       Channel Map: front-left,front-right
       Owner Module: 4
       Mute: no
       Volume: 0:  53% 1:  53%
               0: -16,50 dB 1: -16,50 dB
               balance 0,00
       Base Volume:  42%
                    -22,50 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.resolution_bits = "16"
               device.api = "alsa"
               device.class = "sound"
               alsa.class = "generic"
               alsa.subclass = "generic-mix"
               alsa.name = "STAC9200 Analog"
               alsa.id = "STAC9200 Analog"
               alsa.subdevice = "0"
               alsa.subdevice_name = "subdevice #0"
               alsa.device = "0"
               alsa.card = "0"
               alsa.card_name = "HDA Intel"
               alsa.long_card_name = "HDA Intel at 0xefebc000 irq 43"
               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.name = "NM10/ICH7 Family High Definition Audio Controller"
               device.form_factor = "internal"
               device.string = "front:0"
               device.buffering.buffer_size = "65536"
               device.buffering.fragment_size = "32768"
               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 = "SigmaTel STAC9200"
               alsa.components = "HDA:83847690,102801d4,00102201 HDA:14f12bfa,14f100c3,00090000"
               module-udev-detect.discovered = "1"
               device.icon_name = "audio-card-pci"
       Ports:
               analog-input-microphone-front: Front Microphone (priority: 8500, not available)
               analog-input-microphone-rear: Rear Microphone (priority: 8200, not available)
               analog-input-linein: Line In (priority: 8100)
       Active Port: analog-input-linein
       Formats:
               pcm

 Source #2
       State: SUSPENDED
       Name: alsa_input.usb-Philips_CE_Philips_SPC_1030NC_Webcam-02-Webcam.analog-mono
       Description: Webcam SPC1030NC Analog Mono
       Driver: module-alsa-card.c
       Sample Specification: s16le 1ch 48000Hz
       Channel Map: mono
       Owner Module: 5
       Mute: no
       Volume: 0:  88%
               0: -3,40 dB
               balance 0,00
       Base Volume:  34%
                    -28,00 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.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 = "Philips SPC 1030NC Webcam"
               alsa.long_card_name = "Philips CE Philips SPC 1030NC Webcam at usb-0000:00:1d.7-8.3.3, high speed"
               alsa.driver_name = "snd_usb_audio"
               device.bus_path = "pci-0000:00:1d.7-usb-0:8.3.3:1.2"
               sysfs.path = "/devices/pci0000:00/0000:00:1d.7/usb5/5-8/5-8.3/5-8.3.3/5-8.3.3:1.2/sound/card1"
               udev.id = "usb-Philips_CE_Philips_SPC_1030NC_Webcam-02-Webcam"
               device.bus = "usb"
               device.vendor.id = "0471"
               device.vendor.name = "Philips (or NXP)"
               device.product.id = "2036"
               device.product.name = "Webcam SPC1030NC"
               device.serial = "Philips_CE_Philips_SPC_1030NC_Webcam"
               device.form_factor = "webcam"
               device.string = "hw:1"
               device.buffering.buffer_size = "176400"
               device.buffering.fragment_size = "88200"
               device.access_mode = "mmap+timer"
               device.profile.name = "analog-mono"
               device.profile.description = "Analog Mono"
               device.description = "Webcam SPC1030NC Analog Mono"
               alsa.mixer_name = "USB Mixer"
               alsa.components = "USB0471:2036"
               module-udev-detect.discovered = "1"
               device.icon_name = "camera-web-usb"
       Ports:
               analog-input-microphone: Microphone (priority: 8700)
       Active Port: analog-input-microphone
       Formats:
               pcm

 Sink Input #97
       Driver: protocol-native.c
       Owner Module: 7
       Client: 13
       Sink: 0
       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\""
       Mute: no
       Volume: 0:  19% 1:  19%
               0: -42,60 dB 1: -42,60 dB
               balance 0,00
       Buffer Latency: 496416 usec
       Sink Latency: 0 usec
       Resample method: n/a
       Properties:
               media.name = "ALSA Playback"
               application.name = "ALSA plug-in [mplayer1]"
               native-protocol.peer = "UNIX socket client"
               native-protocol.version = "26"
               application.process.id = "7147"
               application.process.user = "emanoil"
               application.process.host = "maistor"
               application.process.binary = "mplayer1"
               application.language = "C"
               window.x11.display = ":0"
               application.process.machine_id = "0adf833fd21f786cd7b886f64b081869"
               application.process.session_id = "0adf833fd21f786cd7b886f64b081869-1408381524.671640-187569320"
               module-stream-restore.id = "sink-input-by-application-name:ALSA plug-in [mplayer1]"

 Client #0
       Driver: module-console-kit.c
       Owner Module: 13
       Properties:
               application.name = "ConsoleKit Session /org/freedesktop/ConsoleKit/Session1"
               console-kit.session = "/org/freedesktop/ConsoleKit/Session1"

 Client #5
       Driver: protocol-native.c
       Owner Module: 7
       Properties:
               application.name = "ALSA plug-in [kmix]"
               native-protocol.peer = "UNIX socket client"
               native-protocol.version = "26"
               application.process.id = "6978"
               application.process.user = "emanoil"
               application.process.host = "maistor"
               application.process.binary = "kmix"
               application.language = "bg_BG.UTF-8"
               window.x11.display = ":0"
               application.process.machine_id = "0adf833fd21f786cd7b886f64b081869"
               application.process.session_id = "0adf833fd21f786cd7b886f64b081869-1408381524.671640-187569320"

 Client #6
       Driver: protocol-native.c
       Owner Module: 7
       Properties:
               application.name = "Skype"
               native-protocol.peer = "UNIX socket client"
               native-protocol.version = "26"
               application.process.id = "6996"
               application.process.user = "emanoil"
               application.process.host = "maistor"
               application.process.binary = "skype"
               application.language = "bg_BG.UTF-8"
               window.x11.display = ":0"
               application.process.machine_id = "0adf833fd21f786cd7b886f64b081869"
               application.process.session_id = "0adf833fd21f786cd7b886f64b081869-1408381524.671640-187569320"

 Client #13
       Driver: protocol-native.c
       Owner Module: 7
       Properties:
               application.name = "ALSA plug-in [mplayer1]"
               native-protocol.peer = "UNIX socket client"
               native-protocol.version = "26"
               application.process.id = "7147"
               application.process.user = "emanoil"
               application.process.host = "maistor"
               application.process.binary = "mplayer1"
               application.language = "C"
               window.x11.display = ":0"
               application.process.machine_id = "0adf833fd21f786cd7b886f64b081869"
               application.process.session_id = "0adf833fd21f786cd7b886f64b081869-1408381524.671640-187569320"

 Client #18
       Driver: protocol-native.c
       Owner Module: 7
       Properties:
               application.name = "pactl"
               native-protocol.peer = "UNIX socket client"
               native-protocol.version = "26"
               application.process.id = "8079"
               application.process.user = "emanoil"
               application.process.host = "maistor"
               application.process.binary = "pactl"
               application.language = "bg_BG.UTF-8"
               window.x11.display = ":0"
               application.process.machine_id = "0adf833fd21f786cd7b886f64b081869"
               application.process.session_id = "0adf833fd21f786cd7b886f64b081869-1408381524.671640-187569320"

 Card #0
       Name: alsa_card.pci-0000_00_1b.0
       Driver: module-alsa-card.c
       Owner Module: 4
       Properties:
               alsa.card = "0"
               alsa.card_name = "HDA Intel"
               alsa.long_card_name = "HDA Intel at 0xefebc000 irq 43"
               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.name = "NM10/ICH7 Family 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:
               output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority. 6000)
               output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority. 6060)
               output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority. 6055)
               output:iec958-stereo: Digital Stereo (IEC958) Output (sinks: 1, sources: 0, priority. 5500)
               output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (sinks: 1, sources: 1, priority. 5560)
               output:iec958-stereo+input:iec958-stereo: Digital Stereo Duplex (IEC958) (sinks: 1, sources: 1, priority. 5555)
               input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority. 60)
               input:iec958-stereo: Digital Stereo (IEC958) Input (sinks: 0, sources: 1, priority. 55)
               off: Off (sinks: 0, sources: 0, priority. 0)
       Active Profile: output:analog-stereo+input:analog-stereo
       Ports:
               analog-output: Analog Output (priority: 9900)
                       Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-stereo+input:iec958-stereo
               analog-input-microphone-front: Front Microphone (priority: 8500, not available)
                       Part of profile(s): output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo, input:analog-stereo
               analog-input-microphone-rear: Rear Microphone (priority: 8200, not available)
                       Part of profile(s): output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo, input:analog-stereo
               analog-input-linein: Line In (priority: 8100)
                       Part of profile(s): output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo, input:analog-stereo
               iec958-stereo-input: iec958-stereo-input (priority: 0)
                       Part of profile(s): output:analog-stereo+input:iec958-stereo, output:iec958-stereo+input:iec958-stereo, input:iec958-stereo
               iec958-stereo-output: Digital Output (S/PDIF) (priority: 0)
                       Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-stereo+input:iec958-stereo

 Card #1
       Name: alsa_card.usb-Philips_CE_Philips_SPC_1030NC_Webcam-02-Webcam
       Driver: module-alsa-card.c
       Owner Module: 5
       Properties:
               alsa.card = "1"
               alsa.card_name = "Philips SPC 1030NC Webcam"
               alsa.long_card_name = "Philips CE Philips SPC 1030NC Webcam at usb-0000:00:1d.7-8.3.3, high speed"
               alsa.driver_name = "snd_usb_audio"
               device.bus_path = "pci-0000:00:1d.7-usb-0:8.3.3:1.2"
               sysfs.path = "/devices/pci0000:00/0000:00:1d.7/usb5/5-8/5-8.3/5-8.3.3/5-8.3.3:1.2/sound/card1"
               udev.id = "usb-Philips_CE_Philips_SPC_1030NC_Webcam-02-Webcam"
               device.bus = "usb"
               device.vendor.id = "0471"
               device.vendor.name = "Philips (or NXP)"
               device.product.id = "2036"
               device.product.name = "Webcam SPC1030NC"
               device.serial = "Philips_CE_Philips_SPC_1030NC_Webcam"
               device.form_factor = "webcam"
               device.string = "1"
               device.description = "Webcam SPC1030NC"
               module-udev-detect.discovered = "1"
               device.icon_name = "camera-web-usb"
       Profiles:
               input:analog-mono: Analog Mono Input (sinks: 0, sources: 1, priority. 1)
               off: Off (sinks: 0, sources: 0, priority. 0)
       Active Profile: input:analog-mono
       Ports:
               analog-input-microphone: Microphone (priority: 8700)
                       Part of profile(s): input:analog-mono