root@imx8mp-lpddr4-evk:~# pactl list modules 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 = "15.0" 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 = "15.0" 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 = "15.0" 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 = "15.0" Module #4 Name: module-switch-on-port-available Argument: Usage counter: n/a Properties: module.author = "David Henningsson" module.description = "Switches ports and profiles when devices are plugged/unplugged" module.version = "15.0" Module #5 Name: module-udev-detect Argument: tsched=0 Usage counter: n/a Properties: module.author = "Lennart Poettering" module.description = "Detect available audio hardware and load matching drivers" module.version = "15.0" Module #6 Name: module-alsa-card Argument: device_id="1" name="platform-sound-bt-sco" card_name="alsa_card.platform-sound-bt-sco" namereg_fail=false tsched=no fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1" Usage counter: 0 Properties: module.author = "Lennart Poettering" module.description = "ALSA Card" module.version = "15.0" Module #7 Name: module-alsa-card Argument: device_id="0" name="platform-sound-tlv320aic31xx" card_name="alsa_card.platform-sound-tlv320aic31xx" namereg_fail=false tsched=no fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1" Usage counter: 0 Properties: module.author = "Lennart Poettering" module.description = "ALSA Card" module.version = "15.0" Module #8 Name: module-bluetooth-policy Argument: Usage counter: n/a Properties: module.author = "Frédéric Dalleau, Pali Rohár" module.description = "Policy module to make using bluetooth devices out-of-the-box easier" module.version = "15.0" Module #9 Name: module-bluetooth-discover Argument: headset=auto Usage counter: n/a Properties: module.author = "João Paulo Rechi Vita" module.description = "Detect available Bluetooth daemon and load the corresponding discovery module" module.version = "15.0" Module #10 Name: module-bluez5-discover Argument: headset=auto Usage counter: n/a Properties: module.author = "João Paulo Rechi Vita" module.description = "Detect available BlueZ 5 Bluetooth audio devices and load BlueZ 5 Bluetooth audio drivers" module.version = "15.0" Module #11 Name: module-native-protocol-unix Argument: Usage counter: n/a Properties: module.author = "Lennart Poettering" module.description = "Native protocol (UNIX sockets)" module.version = "15.0" Module #12 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 = "15.0" Module #14 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 = "15.0" Module #15 Name: module-intended-roles Argument: Usage counter: n/a Properties: module.author = "Lennart Poettering" module.description = "Automatically set device of streams based on intended roles of devices" module.version = "15.0" Module #16 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 = "15.0" Module #17 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 = "15.0" Module #18 Name: module-role-cork Argument: Usage counter: n/a Properties: module.author = "Lennart Poettering" module.description = "Mute & cork streams with certain roles while others exist" module.version = "15.0" Module #19 Name: module-filter-heuristics Argument: Usage counter: n/a Properties: module.author = "Colin Guthrie" module.description = "Detect when various filters are desirable" module.version = "15.0" Module #20 Name: module-filter-apply Argument: Usage counter: n/a Properties: module.author = "Colin Guthrie" module.description = "Load filter sinks automatically when needed" module.version = "15.0" Module #21 Name: module-cli-protocol-unix Argument: Usage counter: n/a Properties: module.author = "Lennart Poettering" module.description = "Command line interface protocol (UNIX sockets)" module.version = "15.0"