otuva · March 5, 2025 16:56 · Mar 5, 2025 · Feb 23, 2025
diff --git a/jack.conf b/jack.conf
@@ -65,11 +65,11 @@ context.modules = [
 
 # global properties for all jack clients
 jack.properties = {
-     node.latency       = 64/48000 # sampling rate
-     #node.rate          = 1/48000
-     #node.quantum       = 1024/48000
+     node.latency = 128/48000
+     node.rate = 1/48000
+     node.quantum = 128/48000
      #node.lock-quantum  = true
-     node.force-quantum = 1024 # to remove crackling
+     #node.force-quantum = 1024
      #jack.show-monitor  = true
      #jack.merge-monitor = true
      #jack.show-midi     = true

diff --git a/jack.conf b/jack.conf
@@ -0,0 +1,139 @@
+# JACK client config file for PipeWire version "1.2.4" #
+#
+# Copy and edit this file in /etc/pipewire for system-wide changes
+# or in ~/.config/pipewire for local changes.
+#
+# It is also possible to place a file with an updated section in
+# /etc/pipewire/jack.conf.d/ for system-wide changes or in
+# ~/.config/pipewire/jack.conf.d/ for local changes.
+#
+
+context.properties = {
+    ## Configure properties in the system.
+    #mem.warn-mlock  = false
+    #mem.allow-mlock = true
+    #mem.mlock-all   = false
+    log.level        = 0
+
+    #default.clock.quantum-limit = 8192
+}
+
+context.spa-libs = {
+    #<factory-name regex> = <library-name>
+    #
+    # Used to find spa factory names. It maps an spa factory name
+    # regular expression to a library name that should contain
+    # that factory.
+    #
+    support.* = support/libspa-support
+}
+
+context.modules = [
+    #{ name = <module-name>
+    #    ( args  = { <key> = <value> ... } )
+    #    ( flags = [ ( ifexists ) ( nofail ) ] )
+    #    ( condition = [ { <key> = <value> ... } ... ] )
+    #}
+    #
+    # Loads a module with the given parameters.
+    # If ifexists is given, the module is ignored when it is not found.
+    # If nofail is given, module initialization failures are ignored.
+    #
+    #
+    # Boost the data thread priority.
+    { name = libpipewire-module-rt
+        args = {
+            #rt.prio      = 83
+            #rt.time.soft = -1
+            #rt.time.hard = -1
+        }
+        flags = [ ifexists nofail ]
+    }
+
+    # The native communication protocol.
+    { name = libpipewire-module-protocol-native }
+
+    # Allows creating nodes that run in the context of the
+    # client. Is used by all clients that want to provide
+    # data to PipeWire.
+    { name = libpipewire-module-client-node }
+
+    # Allows applications to create metadata objects. It creates
+    # a factory for Metadata objects.
+    { name = libpipewire-module-metadata }
+]
+
+# global properties for all jack clients
+jack.properties = {
+     node.latency       = 64/48000 # sampling rate
+     #node.rate          = 1/48000
+     #node.quantum       = 1024/48000
+     #node.lock-quantum  = true
+     node.force-quantum = 1024 # to remove crackling
+     #jack.show-monitor  = true
+     #jack.merge-monitor = true
+     #jack.show-midi     = true
+     #jack.short-name    = false
+     #jack.filter-name   = false
+     #jack.filter-char   = " "
+     #
+     # allow:           Don't restrict self connect requests
+     # fail-external:   Fail self connect requests to external ports only
+     # ignore-external: Ignore self connect requests to external ports only
+     # fail-all:        Fail all self connect requests
+     # ignore-all:      Ignore all self connect requests
+     #jack.self-connect-mode = allow
+     #
+     # allow:           Allow connect request of other ports
+     # fail:            Fail connect requests of other ports
+     # ignore:          Ignore connect requests of other ports
+     #jack.other-connect-mode = allow
+     #jack.locked-process    = true
+     #jack.default-as-system = false
+     #jack.fix-midi-events   = true
+     #jack.global-buffer-size = false
+     #jack.max-client-ports   = 768
+     #jack.fill-aliases       = false
+     #jack.writable-input     = true
+}
+
+# client specific properties
+jack.rules = [
+    {   matches = [
+            {
+                # all keys must match the value. ! negates. ~ starts regex.
+                #client.name                = "Carla"
+                #application.process.binary = "jack_simple_client"
+                #application.name           = "~jack_simple_client.*"
+            }
+        ]
+        actions = {
+            update-props = {
+                #node.latency = 512/48000
+            }
+        }
+    }
+    {   matches = [ { application.process.binary = "jack_bufsize" } ]
+        actions = {
+            update-props = {
+                jack.global-buffer-size = true   # quantum set globally using metadata
+            }
+        }
+    }
+    {   matches = [ { application.process.binary = "qsynth" } ]
+        actions = {
+            update-props = {
+                node.always-process = false # makes qsynth idle
+                node.pause-on-idle = false  # makes audio fade out when idle
+                node.passive = out          # makes the sink and qsynth suspend
+            }
+        }
+    }
+    {   matches = [ { client.name = "Mixxx" } ]
+        actions = {
+            update-props = {
+                jack.merge-monitor = false
+            }
+        }
+    }
+]
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