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--- general:linux:wireplumber [2023/09/13 10:23] – sunkan
+++ general:linux:wireplumber [2023/09/13 10:27] (current) – removed sunkan
@@ Line 1: / Line 1: @@
-====== Bowers & Wilkins MM-1 no output below 50% volume ======
-This seems to be due to some fault in the dB reporting and can be worked around by creating a configuration file that overrides this property.
-File can be placed in either ''/etc/wireplumber/main.lua.d'' or ''~/.config/wireplumber/main.lua.d''
-To find the device name either use ''wpctl status'' look for the device id and use ''wpctl inspect <id>'' \\
-Another, and quicker, way is to check output from ''pw-cli ls Device''
-<file lua /etc/wireplumber/main.lua.d/51-Bowers_Wilkins-MM-1.lua>
-rule = {
-  matches = {
-    {
-      { "device.name", "equals", "alsa_card.usb-Bowers___Wilkins_MM-1_304-00" },
-    },
-  },
-  apply_properties = {
-    ["api.alsa.ignore-dB"] = true,
-  },
-}
-table.insert(alsa_monitor.rules, rule)
-</file>
-Then to make the changes take effect run ''systemctl --user restart wireplumber''
-===== MM-1 random tones problem =====
-Finally found the solution to the random tones that would be output at a low volume from the left MM-1 speaker.
-https://forums.macrumors.com/threads/random-tones-coming-from-my-left-b-w-mm-1-speaker-help-o.1704799/
-<file /etc/pipewire/pipewire.conf.d/44100Hz-pipewire.conf>
-# Change default.clock.rate to 44100 to fix B&W MM-1 random tones
-# problem. Other settings should be at the default as in
-# /usr/share/pipewire/pipewire.conf
-context.properties = {
-    ## Configure properties in the system.
-    #library.name.system                   = support/libspa-support
-    #context.data-loop.library.name.system = support/libspa-support
-    #support.dbus                          = true
-    #link.max-buffers                      = 64
-    link.max-buffers                       = 16                       # version < 3 clients can't handle more
-    #mem.warn-mlock                        = false
-    #mem.allow-mlock                       = true
-    #mem.mlock-all                         = false
-    #clock.power-of-two-quantum            = true
-    #log.level                             = 2
-    #cpu.zero.denormals                    = false
-    core.daemon = true              # listening for socket connections
-    core.name   = pipewire-0        # core name and socket name
-    ## Properties for the DSP configuration.
-    default.clock.rate          = 44100
-    #default.clock.allowed-rates = [ 48000 ]
-    #default.clock.quantum       = 1024
-    default.clock.min-quantum   = 16
-    #default.clock.max-quantum   = 2048
-    #default.clock.quantum-limit = 8192
-    #default.video.width         = 640
-    #default.video.height        = 480
-    #default.video.rate.num      = 25
-    #default.video.rate.denom    = 1
-    #
-    #settings.check-quantum      = false
-    #settings.check-rate         = false
-    #
-    # These overrides are only applied when running in a vm.
-    vm.overrides = {
-        default.clock.min-quantum = 1024
-    }
-}
-</file>