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* Adapted to run with my new module "Audio Samplerate Changer"

README.md

@@ -18,13 +18,13 @@ This module,
 <br/>
 <br/>
 
-* Don't forget to install ["Audio jitter silencer"](https://github.com/Magisk-Modules-Alt-Repo/audio-jitter-silencer) together and uninstall "Digital Wellbeing" app (for reducing very large jitters which this module cannot reduce as itself)! If you like much clearer replay (especially on Qcomm devices using an offloading USB driver with large jitter), use <a href="https://github.com/yzyhk904/USB_SampleRate_Changer">"USB_SampleRate_Changer"</a> for reducing the jitter (making foggy sound).
+* Don't forget to install ["Audio jitter silencer"](https://github.com/Magisk-Modules-Alt-Repo/audio-jitter-silencer) together and uninstall "Digital Wellbeing" app (for reducing very large jitters which this module cannot reduce by itself)! If you like much clearer replay (especially on Qcomm devices using an offloading USB driver with large jitter), use <a href="https://github.com/yzyhk904/USB_SampleRate_Changer">"USB_SampleRate_Changer"</a> for reducing the jitter (making foggy sound).
 
 * Don't use Am@zon music using a much worse internal re-sampler which bypasses the mastering quality re-sampling in the OS mixer (audioFlinger). Other music streaming services don't use such an internal re-sampler, as far as I know.
 
 * This module has been tested on LineageOS and crDroid ROM's, and phh GSI's (Android 10 ~ 14, Qualcomm & MediaTek SoC, and Arm32 & Arm64 combinations). 
 
-* Note 1: This module raises the resampling quality from AOSP standard one (stop band attenuation 90dB & cut off 100% of the Nyquist frequency & half filter length 32) to a very mastering quality (179dB & 99% & 408 for Android 12 and later devices and 160db & 91% & 480 for Android 9 & 10 & 11 ones (except low performance ones), but 167dB & 106% & 368 (194dB & 100% & 520 exceptionally for Galaxy S4) for low performance Android 12 and later devices, 160dB & 91% & 320 for low performance Android 9 & 10 & 11 ones; because earlier than Android 12 has a bug relating to aliasing processing around the Nyquist frequency). However, this cannot raise the quality for Android 8.1 and earlier ones. Please keep in mind that those attenuation values are used for a resampler design as targeted ones and may not be accomplished in the AOSP implementation.
+* Note 1: This module raises the resampling quality from AOSP standard one (stop band attenuation 90dB & cut off 100% of the Nyquist frequency & half filter length 32) to a very mastering quality (194dB & 98% & 520 for very high performance devices, 179dB & 99% & 408 for Android 12 and later ones and 160db & 91% & 480 for Android 9 & 10 & 11 ones (except low performance ones), but 167dB & 106% & 368 (194dB & 100% & 520 exceptionally for Galaxy S4) for low performance Android 12 and later devices, 160dB & 91% & 320 for low performance Android 9 & 10 & 11 ones; because earlier than Android 12 has a bug relating to aliasing processing around the Nyquist frequency). However, this cannot raise the quality for Android 8.1 and earlier ones. Please keep in mind that those attenuation values are used for a resampler design as targeted ones and may not be accomplished in the AOSP implementation.
 
 * 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.
 
@@ -43,6 +43,7 @@ This module,
     | 159 | 480 | 92 | | High Performance devices under A12 |
     | 165 | 360 | | 104 | Low Performance devices for A12 and later |
     | 179 | 408 | | 99 | High Performance devices for A12 and later, and Galaxy S4 |
+    | 194 | 520 | | 98 | Very High Performance devices |
     | External examples: | - | - | - | - |
     | 100 | 29 | (91) | 109 | AK4493 (Sharp roll-off N-fold over-sampling) |
     | 150 | 42 | (91) | 109 | AK4191EQ (Sharp roll-off N-fold over-sampling) |

changelog.md

@@ -1,12 +1,17 @@
 ## Change logs
 
+# v1.3.9
+* Adapted to run with my new module "Audio Samplerate Changer"
+
 # v1.3.8
 * Added disabling Dolby control support for USB DAC's on HyperOS not to reboot
 * Excluded "MotorolaSettingsProvider" on Motorala devices only for avoiding their bootloop
 * Changed the USB period_us from 2250 usec to 2000 usec to optimize for 48 kHz Opus tracks (recent majority)
 * Added new props "audio.safemedia.force=false" and "audio.safemedia.csd.force=false"
 * Fixed above disabling Dolby control support (manufacturer mismatch)
 * Added a support for Tensor G4 (zuma pro)
+* Changed a mirroring warning for incompatible Magisk v28.0; Please use [Compatible magisk-mirroring](https://github.com/Magisk-Modules-Alt-Repo/compatible-magisk-mirroring) and Magisk v28.0 together
+* Added better re-sampling parameters for very high performance devices
 
 # v1.3.7
 * Added "compatible Magisk-mirroring" message for incompatible Magisk variants

customize-functions.sh

@@ -63,6 +63,29 @@ function getActualConfigXML()
     fi
 }
 
+function toHexLE()
+{
+    if [ $# -eq 1  -a  $1 -gt 0 ]; then
+        printf "%2.2x%2.2x%2.2x%2.2x" $(( $1 % 256 ))  $(( $1 / 256 % 256 ))  $(( $1 / 256 / 256 % 256 ))  $(( $1 / 256 / 256 / 256 % 256 ))
+        return 0
+    else
+        return 1
+    fi
+}
+
+function toHexLineLE()
+{
+    if [ $# -eq 1 ]; then
+        local i
+        for i in $1; do
+            toHexLE $i
+        done
+        return 0
+    else
+        return 1
+    fi
+}
+
 function toHexString()
 {
     if [ $# -ge 1 ]; then
@@ -86,7 +109,7 @@ function toHexString()
     fi
 }
 
-# Patch libalsautils.so to map a property string to another
+# Patch libalsautils.so and audio_usb_aoc.so (Tensor's offload USB driver) to map a property string to another
 #   arg1: original libalsautils.so file;  arg2: patched libalsautils.so file; 
 function patchMapProperty()
 {
@@ -117,6 +140,101 @@ function patchMapProperty()
     fi
 }
 
+# Patch libalsautils.so to clear the 96kHz lock of USB audio class drivers
+#   arg1: original libalsautils.so file;  arg2: patched libalsautils.so file; 
+#     optional arg3: "max" (clearing upto 768kHz), "full" (clearing upto 386kHz), "default" or others (clearing upto 192kHz)
+function patchClearLock()
+{
+    local orig_rates='96000  88200  192000  176400  48000  44100  32000  24000  22050  16000  12000  11025  8000'
+    local new_rates='192000  176400  96000  88200  48000  44100  32000  24000  22050  16000  12000  11025  8000'
+
+    if [ $# -ge 2  -a  -r "$1" ]; then
+        if [ $# -gt 2 ]; then
+            case "$3" in
+                "max" )
+                    new_rates='768000  705600  384000  352800  192000  176400  96000  88200  48000  44100  24000  16000  8000'
+                    ;;
+                "full" )
+                    new_rates='384000  352800  192000  176400  96000  88200  48000  44100  32000  24000  16000  12000  8000'
+                    ;;
+                "default" | * )
+                    ;;
+          esac
+      fi
+
+        local pat1=`toHexLineLE "$orig_rates"`
+        local pat2=`toHexLineLE "$new_rates"`
+
+        # A workaroud for a SELinux permission bug on Android 12
+        local prop1=`toHexString "ro.audio.usb.period_us"`
+        local prop2=`toHexString "vendor.audio.usb.perio"`
+
+        xxd -p <"$1" | tr -d ' \n' | sed -e "s/$prop1/$prop2/" -e "s/$pat1/$pat2/" \
+            | awk 'BEGIN {
+                foldWidth=60
+                getline buf
+                len=length(buf)
+                for (i=1; i <= len; i+=foldWidth) {
+                    if (i + foldWidth - 1 <= len)
+                        print substr(buf, i, foldWidth)
+                    else
+                        print substr(buf, i, len)
+                }
+                exit
+              }'  \
+            | xxd -r -p >"$2"
+
+        return $?
+
+    else
+
+        return 1
+    fi
+}
+
+# Patch audio_usb_aoc.so file to clear the 192kHz lock of USB audio class Tensor offload drivers
+#   arg1: original audio_usb_aoc.so file;  arg2: patched audio_usb_aoc.so file; 
+function patchClearTensorOffloadLock()
+{
+    local orig_rates='192000  96000  48000  44100  32000  24000  22050  16000  12000  11025  8000'
+    local new_rates='768000  705600  384000  352800  192000  176400  96000  88200  48000  44100  8000'
+
+    if [ $# -ge 2  -a  -r "$1" ]; then
+        local pat1=`toHexLineLE "$orig_rates"`
+        local pat2=`toHexLineLE "$new_rates"`
+
+        # A workaroud for a SELinux permission bug on Android 12
+        local prop1=`toHexString "ro.audio.usb.period_us"`
+        local prop2=`toHexString "vendor.audio.usb.perio"`
+
+        # sample rate limiter at 192kHz
+        local ul1=`toHexLineLE "192000"`
+        local ul2=`toHexLineLE "768000"`
+
+#        Don't work yet. Need more inviestigations
+#        xxd -p <"$1" | tr -d ' \n' | sed -e "s/$prop1/$prop2/" -e "s/$ul1/$ul2/" -e "s/$pat1/$pat2/" \
+        xxd -p <"$1" | tr -d ' \n' | sed -e "s/$prop1/$prop2/" \
+            | awk 'BEGIN {
+                 foldWidth=60
+                 getline buf
+                 len=length(buf)
+                 for (i=1; i <= len; i+=foldWidth) {
+                     if (i + foldWidth - 1 <= len)
+                         print substr(buf, i, foldWidth)
+                     else
+                         print substr(buf, i, len)
+                 }
+                 exit
+               }'  \
+             | xxd -r -p >"$2"
+
+        return $?
+
+    else
+        return 1
+    fi
+}
+
 function makeLibraries()
 {
     local MAGISKPATH="$(magisk --path)"
@@ -131,10 +249,10 @@ function makeLibraries()
                 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}/${lname}"
+                if [ -z "${REPLACEFILES}" ]; then
+                    REPLACEFILES="/system/vendor/${d}/${lname}"
                 else
-                    REPLACE="${REPLACE} /system/vendor/${d}/${lname}"
+                    REPLACEFILES="${REPLACEFILES} /system/vendor/${d}/${lname}"
                 fi
             fi
         done        
@@ -159,6 +277,31 @@ function loosenedMessage()
     ui_print ""
 }
 
+function replaceSystemProps_VHPerf()
+{
+    sed -i \
+        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2000/' \
+        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2000/' \
+            "$MODPATH/system.prop"
+    sed -i \
+        -e 's/vendor\.audio\.usb\.perio=.*$/vendor\.audio\.usb\.perio=2000/' \
+        -e 's/vendor\.audio\.usb\.out\.period_us=.*$/vendor\.audio\.usb\.out\.period_us=2000/' \
+            "$MODPATH/system.prop-workaround"
+
+    sed -i \
+        -e 's/ro\.audio\.resampler\.psd\.enable_at_samplerate=.*$/ro\.audio\.resampler\.psd\.enable_at_samplerate=44100/' \
+        -e 's/ro\.audio\.resampler\.psd\.stopband=.*$/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\.tbwcheat=98/' \
+            "$MODPATH/system.prop"
+    sed -i \
+        -e 's/ro\.audio\.resampler\.psd\.enable_at_samplerate=.*$/ro\.audio\.resampler\.psd\.enable_at_samplerate=44100/' \
+        -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=.*$/ro\.audio\.resampler\.psd\.tbwcheat=98/' \
+            "$MODPATH/system.prop-workaround"
+}
+
 function replaceSystemProps_Old()
 {
     if [ -e "${MODPATH%/*/*}/modules/usb-samplerate-unlocker"  -o  -e "${MODPATH%/*/*}/modules_update/usb-samplerate-unlocker" ]; then
@@ -357,10 +500,10 @@ function deSpatializeAudioPolicyConfig()
             chcon u:object_r:vendor_configs_file:s0 "$modConfigXML"
             chown root:root "$modConfigXML"
             chmod -R a+rX "${modConfigXML%/*}"
-            if [ -z "$REPLACE" ]; then
-                REPLACE="/system${configXML}"
+            if [ -z "$REPLACEFILES" ]; then
+                REPLACEFILES="/system${configXML}"
             else
-                REPLACE="$REPLACE /system${configXML}"
+                REPLACEFILES="$REPLACEFILES /system${configXML}"
             fi
         fi
     fi
@@ -394,3 +537,11 @@ function disablePrivApps()
         fi
     done
 }
+
+function ui_print_replacelist()
+{
+    local f
+    for f in $1; do
+        ui_print "- Replace target file: $f"
+    done
+}

customize.sh

@@ -14,6 +14,7 @@ if ! isMagiskMountCompatible; then
 fi
 
 REPLACE=""
+REPLACEFILES=""
 
 # Make patched ALSA utility and Tensor's offload libraries for "ro.audio.usb.period_us"
 makeLibraries
@@ -53,13 +54,16 @@ fi
 if "$IS64BIT"; then
     board="`getprop ro.board.platform`"
     case "$board" in
+        zuma* | "pineapple"  )
+            replaceSystemProps_VHPerf
+            ;;
         "kona" | "kalama" | "shima" | "yupik" )
             replaceSystemProps_Kona
             ;;
         "sdm845" )
             replaceSystemProps_SDM845
             ;;
-        gs* | zuma* )
+        gs* )
             replaceSystemProps_Tensor
             ;;
         "sdm660" | "bengal" | "holi" )
@@ -96,3 +100,4 @@ else
 fi
 
 rm -f "$MODPATH/customize-functions.sh" "$MODPATH/LICENSE" "$MODPATH/README.md" "$MODPATH/changelog.md"
+ui_print_replacelist "$REPLACEFILES"

module.prop

@@ -1,6 +1,6 @@
 id=audio-misc-settings
 name=Audio misc. settings
-version=v1.3.8
-versionCode=1308
+version=v1.3.9
+versionCode=1309
 author=zyhk
 description=Setting audio misc. configuration values (e.g. 100 volume steps, raising the resampling quality, disabling the effects framework, etc.)

post-fs-data.sh

@@ -8,9 +8,12 @@ MODDIR=${0%/*}
 # This script will be executed in post-fs-data mode
 
 if [ \( -e "${MODDIR%/*/*}/modules/usb-samplerate-unlocker"  -a  ! -e "${MODDIR%/*/*}/modules/usb-samplerate-unlocker/disable" \) \
-        -o  -e "${MODDIR%/*/*}/modules_update/usb-samplerate-unlocker" ]; then
+        -o  -e "${MODDIR%/*/*}/modules_update/usb-samplerate-unlocker" ] || \
+    [ \( -e "${MODDIR%/*/*}/modules/audio-samplerate-changer"  -a  ! -e "${MODDIR%/*/*}/modules/audio-samplerate-changer/disable" \) \
+        -o  -e "${MODDIR%/*/*}/modules_update/audio-samplerate-changer" ]; then
 
-    # If usb-samplerate-unlock exists, save related libraries elsewhere  because the unlocker will do the same thing in itself.
+    # If usb-samplerate-unlock or audio-samplerate-changer exists, save related libraries and file(s) elsewhere
+    # because they will do the same thing in themselves.
     for d in "lib" "lib64"; do
         for lname in "libalsautils.so" "libalsautilsv2.so" "audio_usb_aoc.so"; do
             if [ -r "${MODDIR}/system/vendor/${d}/${lname}" ]; then
@@ -22,7 +25,7 @@ if [ \( -e "${MODDIR%/*/*}/modules/usb-samplerate-unlocker"  -a  ! -e "${MODDIR%
 
 else
 
-    # If usb-samplerate-unlock doesn't exist, restore related libraries from their saved folders.
+    # If usb-samplerate-unlock and audio-samplerate-changer don't exist, restore related libraries from their saved folders.
     for d in "lib" "lib64"; do
         for lname in "libalsautils.so" "libalsautilsv2.so" "audio_usb_aoc.so"; do
             if [ -r "${MODDIR}/save/vendor/${d}/${lname}"  -a  -e "${MODDIR}/system/vendor/${d}" ]; then