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1. Changed the re-sampling parameters for Galaxy S4 to the general purpose ones (optimized for 3.5mm jack; not USB DAC's)
2. Tuned the USB period size for Tensor devices (2625 usec to 2250 usec)
3. Fixed for Pixel 8's

README.md

@@ -28,7 +28,7 @@ This module,
 
 * Note 2: Entry class USB DAC's usually adopt an interface chip communicating with the adaptive mode or the synchronous one defined in the USB audio standard. As in these modes an Android host controller sends audio sampling rate clock signals to the DAC, jitter generated at the host side affects the audio quality of the DAC tremendously. Higher class DAC's communicate with the asynchronous mode (also defined in the standard) to a host controller, but they actually use a PLL to reduce jitter from the host not to stutter even in heavy jitter situations. As this result, they behave as the adaptive mode with a feedback loop to dynamically adjust the host side sampling clock signals while referring a DAC side clock in a real sense, so even with the asynchronous mode they are more or less affected by host side jitter. You can see the mode of your USB DAC by opening "/proc/asound/card1/stream0" on your phone while playing music. Please see a word in parentheses at "Endpoint:" lines; "SYNC", "ADAPTIVE" or "ASYNC" means that your DAC uses "synchronous", "adaptive" or "asynchronous" mode to communicate to your phone, respectively. Moreover, almost all audio peripherals, e.g., bluetooth earphones, internal DAC's, network audio devices have a PLL in themselves and are affected by host side jitter for the same reason.
 
-* I recommend expert users not to install ["Audio jitter silencer"](https://github.com/Magisk-Modules-Alt-Repo/audio-jitter-silencer), but manually to disable "Manage apps automatically" in "Battery manager" (or "Adaptive battery" of "Adaptive preferences") in the battery section (needless to say, don't enable battery savers, performance limiters and the like), turning off "Adaptive connectivity" in the Network & internet section (if exists), and changing "Battery optimization" from "Optimize" to "Don't optimize" (or change "Battery usage" from "Optimized" to "Unrestricted") for following app's manually through the settings UI of Android OS (to lower less than 10Hz jitter making extremely short reverb or foggy sound like distortion) even though disabling the Android doze itself: music (streaming) player apps, their licensing apps (if exist), "AirMusic" (if exists), "AirMusic  Recording Service" (system app; if exists), equalizer apps (if exist), "Bluetooth" (system app), "Bluetooth MIDI Service" (system app), "MTP Host" (system app), "NFC Service" (system app; if exists), "sManager" or the like (if exists), "Magisk" (if exists), System WebView apps (system app), Browser apps, "PhhTrebleApp" (system app; if exists), "Android Services Library" (system app), "Android Shared Library" (system app), "Android System" (system app), "System UI" (system app), "Input Devices" (system app), {Gesture, 3 Button, 2  Button} Navigation Bar apps (which you are using only; system app), "crDroid System" (system app; if exists), "LineageOS System" (system app; if exists), launcher app, "Google Play Store" (system app), "Google Play services" (system app), "Styles & wallpaper" or the like (system app), {Lineage, crDroid, Arrow, etc.} themes app (system app; if exists),  "AOSP panel" (system app; if exists), "OmniJaws" (system app; if exists), "OmniStyle" (system app; if exists), "Active Edge Service" (system app; if exists), "Android Device Security Module" (system app; if exists), "Call Management" (system app; if exists), "Phone" (system app; if exists), "Phone Calls" (system app; if exists), "Phone Services" (system app; if exists), "Phone and Messaging Storage" (system app; if exists), "Storage Manager" (system app), "Default" (system app; if exists), "Default StatusBar" (system app; if exists), "Wfd Service" (system app; if exists), "Wallpaper" or the like (system app), "Adreno Graphics Drivers" (system app; if exists), "com.android.providers.media" (system app), "Files by Google" (system app; if exists), "Google Play Services for AR" (system app; if exists), "Google Services Framework" (system app), "Waterfall cutout" (system app), "Network Manager" (system app), "Companion Device Manager" (system app), "Intent Filter Verification Service" (system app), "Calendar", camera apps, keyboard app, kernel adiutors (if exist), etc. And uninstall "Digital Wellbeing" (system app; if it exists) itself or change "Battery usage" from "Optimized" to "Restricted" (this is very harmful for audio like camera servers). Because "Audio jitter silencer" isn't complete and needs some maintenance after its installation.
+* I recommend expert users not to install ["Audio jitter silencer"](https://github.com/Magisk-Modules-Alt-Repo/audio-jitter-silencer), but manually to disable "Manage apps automatically" in "Battery manager" (or "Adaptive battery" of "Adaptive preferences") in the battery section (needless to say, don't enable battery savers, performance limiters and the like), turning off "Adaptive connectivity" in the Network & internet section (if exists), and changing "Battery optimization" from "Optimize" to "Don't optimize" (or change "Battery usage" from "Optimized" to "Unrestricted") for following app's manually through the settings UI of Android OS (to lower less than 10Hz jitter making extremely short reverb or foggy sound like distortion) even though disabling the Android doze itself: music (streaming) player apps, their licensing apps (if exist), "AirMusic" (if exists), "AirMusic  Recording Service" (system app; if exists), equalizer apps (if exist), "Bluetooth" (system app), "Bluetooth MIDI Service" (system app), "MTP Host" (system app), "NFC Service" (system app; if exists), "Magisk" (if exists), System WebView apps (system app), Browser apps, "PhhTrebleApp" (system app; if exists), "Android Services Library" (system app), "Android Shared Library" (system app), "Android System" (system app), "System UI" (system app), "Input Devices" (system app), {Gesture, 3 Button, 2  Button} Navigation Bar apps (which you are using only; system app), "crDroid System" (system app; if exists), "LineageOS System" (system app; if exists), launcher app, "Google Play Store" (system app), "Google Play services" (system app), "Styles & wallpaper" or the like (system app), {Lineage, crDroid, Arrow, etc.} themes app (system app; if exists),  "AOSP panel" (system app; if exists), "OmniJaws" (system app; if exists), "OmniStyle" (system app; if exists), "Active Edge Service" (system app; if exists), "Android Device Security Module" (system app; if exists), "Call Management" (system app; if exists), "Phone" (system app; if exists), "Phone Calls" (system app; if exists), "Phone Services" (system app; if exists), "Phone and Messaging Storage" (system app; if exists), "Storage Manager" (system app), "Default" (system app; if exists), "Default StatusBar" (system app; if exists), "Wfd Service" (system app; if exists), "Wallpaper" or the like (system app), "Adreno Graphics Drivers" (system app; if exists), "com.android.providers.media" (system app), "Files by Google" (system app; if exists), "Google Play Services for AR" (system app; if exists), "Google Services Framework" (system app), "Waterfall cutout" (system app), "Network Manager" (system app), "Companion Device Manager" (system app), "Intent Filter Verification Service" (system app), "Calendar", camera apps, keyboard app, kernel adiutors (if exist), etc. And uninstall "Digital Wellbeing" (system app; if it exists) itself or change "Battery usage" from "Optimized" to "Restricted" (this is very harmful for audio like camera servers). Because "Audio jitter silencer" isn't complete and needs some maintenance after its installation.
 
 * See also my companion script ["USB_SampleRate_Changer"](https://github.com/yzyhk904/USB_SampleRate_Changer) to change the sample rate of the USB (HAL) audio class driver and a 3.5mm jack on the fly like Bluetooth LDAC or Windows mixer to enjoy high resolution sound or to reduce resampling distortion (actually pre-echo, ringing and intermodulation) ultimately. If annoying (perhaps, for many people) DRC (Dynamic Range Control, i.e., a kind of compression) has been enabled on your device (e.g., smart phones and tablets having an SDM??? or SM???? model numbered SoC internally), you can disable DRC by this script. Or you can use my magisk module ["DRC remover"](https://github.com/Magisk-Modules-Alt-Repo/drc-remover) to simply disable DRC only.
 

changelog.md

@@ -1,7 +1,12 @@
 ## Change logs
 
+# v1.3.5
+* Changed the re-sampling parameters for Galaxy S4 to the general purpose ones (optimized for 3.5mm jack; not USB DAC's)
+* Tuned the USB period size for Tensor devices (2625 usec to 2250 usec)
+* Fixed for Pixel 8's
+
 # v1.3.4
-* * Tuned USB transfer period sizes for reducing jitter
+* Tuned USB transfer period sizes for reducing jitter
 
 # v1.3.3
 * Stopped Tensor device's AOC daemon for reducing significant jitter

customize-functions.sh

@@ -210,11 +210,6 @@ function replaceSystemProps_S4()
 
     fi
 
-    sed -i \
-        -e 's/ro\.audio\.resampler\.psd\.stopband=.*$/ro\.audio\.resampler\.psd\.stopband=194/' \
-        -e 's/ro\.audio\.resampler\.psd\.halflength=.*$/ro\.audio\.resampler\.psd\.halflength=520/' \
-        -e 's/ro\.audio\.resampler\.psd\.tbwcheat=.*$/ro\.audio\.resampler\.psd\.cutoff_percent=100/' \
-            "$MODPATH/system.prop"
     sed -i \
         -e 's/ro\.audio\.resampler\.psd\.halflength=.*$/ro\.audio\.resampler\.psd\.halflength=320/' \
             "$MODPATH/system.prop-workaround"
@@ -251,12 +246,12 @@ function replaceSystemProps_kona()
 function replaceSystemProps_SDM845()
 {
     sed -i \
-        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2750/' \
-        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2750/' \
+        -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/' \
             "$MODPATH/system.prop"
     sed -i \
-        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2750/' \
-        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2750/' \
+        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2500/' \
+        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2500/' \
             "$MODPATH/system.prop-workaround"
 }
 
@@ -281,12 +276,12 @@ function replaceSystemProps_MTK_Dimensity()
 function replaceSystemProps_Tensor()
 {
     sed -i \
-        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2625/' \
-        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2625/' \
+        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2250/' \
+        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2250/' \
             "$MODPATH/system.prop"
     sed -i \
-        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2625/' \
-        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2625/' \
+        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2250/' \
+        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2250/' \
             "$MODPATH/system.prop-workaround"
 }
 

customize.sh

@@ -32,7 +32,7 @@ if "$IS64BIT"; then
         "sdm845" )
             replaceSystemProps_SDM845
             ;;
-        gs* )
+        gs* | zuma )
             replaceSystemProps_Tensor
             ;;
         "sdm660" | "bengal" | "holi" )

module.prop

@@ -1,6 +1,6 @@
 id=audio-misc-settings
 name=Audio misc. settings
-version=v1.3.4
-versionCode=1304
+version=v1.3.5
+versionCode=1305
 author=zyhk
 description=Setting audio misc. configuration values (e.g. 100 volume steps, raising the resampling quality, disabling the effects framework, etc.)