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Fixed some SELinux related bugs for Magisk v26.0's new magic mount feature.
Diabled pre-installed Moto Dolby features for reducing large jitter caused by them.

README.md

@@ -6,6 +6,7 @@ This module,
     <li>raises the resampling quality of the Android OS mixer (AudioFlinger) to a very mastering quality (i.e., no resampling distortion in a real sense),</li>
     <li>disables the effects framework of the mixer (to interface to equalizers, virtualizers, visualizers, echo cancelers, automatic gain controls, etc.) for obtaining a nearly direct low jitter audio pass,</li>
     <li>disables the android built-in spatial audio feature (A13 or higher; especially Tensor devices) for obtaining a nearly direct low jitter audio pass too,</li>
+    <li>disables the pre-installed Moto Dolby feature for obtaining a nearly direct low jitter audio pass too,</li>
     <li>adjusts a USB transfer period of the USB HAL driver (not the recently common hardware offloading USB (tunneling) driver) for directly reducing the jitter of a PLL in a DAC (even in an asynchronous mode); Use <a href="https://github.com/yzyhk904/USB_SampleRate_Changer">"USB_SampleRate_Changer"</a> to switch from the usual hardware offloading USB (tunneling) driver to the USB HAL one,</li>
     <li>sets a higher bitrate limit of bluetooth codec SBC (dual channel mode) for EDR 2Mbps entry class earphones (not for EDR 3Mbps performance ones, but including AV amplifiers and BT speakers),</li>
     <li>sets an audio scheduling tunable "vendor.audio.adm.buffering.ms" "2" to reduce jitter on all audio outputs,</li>
@@ -55,15 +56,4 @@ This module,
 
 * I am not responsible for any damage that may occur to your device, so it is your own choice to attempt this module.
 
-## Change logs
-
-# v1.0
-* Initial Release
-
-# v1.1
-* Set new properties related to an audio scheduling
-
-# v1.2
-* Added a workaround for Android 12 SELinux bug w.r.t. "ro.audio.usb.period_us" property
-
 ##

customize-functions.sh

@@ -112,6 +112,8 @@ function makeLibraries()
                 mkdir -p "${MODPATH}/system/vendor/${d}"
                 patchMapProperty "${MAGISKPATH}/.magisk/mirror/vendor/${d}/${lname}" "${MODPATH}/system/vendor/${d}/${lname}"
                 chmod 644 "${MODPATH}/system/vendor/${d}/${lname}"
+                chcon u:object_r:vendor_file:s0 "${MODPATH}/system/vendor/${d}/${lname}"
+                chown root:root "${MODPATH}/system/vendor/${d}/${lname}"
                 chmod -R a+rX "${MODPATH}/system/vendor/${d}"
                 if [ -z "${REPLACE}" ]; then
                     REPLACE="/system/vendor/${d}/${lname}"
@@ -232,12 +234,12 @@ function replaceSystemProps_kona()
 
     else
         sed -i \
-            -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2500/' \
-            -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2500/' \
+            -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3500/' \
+            -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=3500/' \
                 "$MODPATH/system.prop"
         sed -i \
-            -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2500/' \
-            -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2500/' \
+            -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=3500/' \
+            -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=3500/' \
                 "$MODPATH/system.prop-workaround"
 
     fi
@@ -333,6 +335,8 @@ function deSpatializeAudioPolicyConfig()
             touch "$modConfigXML"
             stopSpatializer "$mirrorConfigXML" "$modConfigXML"
             chmod 644 "$modConfigXML"
+            chcon u:object_r:vendor_configs_file:s0 "$modConfigXML"
+            chown root:root "$modConfigXML"
             chmod -R a+rX "$MODPATH/system/vendor/etc"
             if [ -z "$REPLACE" ]; then
                 REPLACE="/system${configXML}"
@@ -341,4 +345,29 @@ function deSpatializeAudioPolicyConfig()
             fi
         fi
     fi
-}
+}
+
+function disableMotoDolby()
+{
+    local MotoApps="
+/system_ext/priv-app/MotoDolbyDax3
+/system_ext/priv-app/MotorolaSettingsProvider
+/system_ext/priv-app/daxService
+/system_ext/app/MotoSignatureApp
+"
+    local MAGISKPATH="$(magisk --path)"
+    local dir mdir
+
+    for dir in $MotoApps; do
+        if [ -d "${MAGISKPATH}/.magisk/mirror${dir}" ]; then
+            mdir="${MODPATH}/system${dir}"
+            mkdir -p "$mdir"
+            chmod a+rx "$mdir"
+            if [ -z "$REPLACE" ]; then
+                REPLACE="/system${dir}"
+            else
+                REPLACE="${REPLACE} /system${dir}"
+            fi
+        fi
+    done
+}

customize.sh

@@ -3,8 +3,13 @@
 . "$MODPATH/customize-functions.sh"
 
 REPLACE=""
+
+# making patched ALSA utility libraries for "ro.audio.usb.period_us"
 makeLibraries
+# removing post-A13 (especially Tensor's) spatial audio flags in an audio configuration file for avoiding errors
 deSpatializeAudioPolicyConfig "/vendor/etc/bluetooth_audio_policy_configuration_7_0.xml"
+# disabling pre-installed Moto Dolby faetures for reducing very large jitter caused by them
+disableMotoDolby
 
 if "$IS64BIT"; then
     board="`getprop ro.board.platform`"

module.prop

@@ -1,6 +1,6 @@
 id=audio-misc-settings
 name=Audio misc. settings
-version=v1.2.4
-versionCode=1204
+version=v1.3.0
+versionCode=1300
 author=zyhk
 description=Setting audio misc. configuration values (e.g. 100 volume steps, raising the resampling quality, disabling the effects framework, etc.)