高通Android10 铃声通话音频80%音量修改

先修改最高的音量step

--- a/SC60_AP/frameworks/base/services/core/java/com/android/server/audio/AudioService.java
+++ b/SC60_AP/frameworks/base/services/core/java/com/android/server/audio/AudioService.java
@@ -311,14 +311,14 @@ public class AudioService extends IAudioService.Stub
 
    /** Maximum volume index values for audio streams */
     protected static int[] MAX_STREAM_VOLUME = new int[] {
-        5,  // STREAM_VOICE_CALL
-        7,  // STREAM_SYSTEM
-        7,  // STREAM_RING
+        15,  // STREAM_VOICE_CALL
+        15,  // STREAM_SYSTEM
+        15,  // STREAM_RING
         15, // STREAM_MUSIC
-        7,  // STREAM_ALARM
-        7,  // STREAM_NOTIFICATION
+        15,  // STREAM_ALARM
+        15,  // STREAM_NOTIFICATION
         15, // STREAM_BLUETOOTH_SCO
-        7,  // STREAM_SYSTEM_ENFORCED
+        15,  // STREAM_SYSTEM_ENFORCED
         15, // STREAM_DTMF
         15, // STREAM_TTS
         15  // STREAM_ACCESSIBILITY

然后修改默认的音量但不一定好使

--- a/SC60_AP/frameworks/base/media/java/android/media/AudioSystem.java
+++ b/SC60_AP/frameworks/base/media/java/android/media/AudioSystem.java
@@ -1123,17 +1123,17 @@ public class AudioSystem
     }
 
     public static int[] DEFAULT_STREAM_VOLUME = new int[] {
-        4,  // STREAM_VOICE_CALL
-        7,  // STREAM_SYSTEM
-        5,  // STREAM_RING
-        5, // STREAM_MUSIC
-        6,  // STREAM_ALARM
-        5,  // STREAM_NOTIFICATION
-        7,  // STREAM_BLUETOOTH_SCO
-        7,  // STREAM_SYSTEM_ENFORCED
-        5, // STREAM_DTMF
-        5, // STREAM_TTS
-        5, // STREAM_ACCESSIBILITY
+        12,  // STREAM_VOICE_CALL
+        12,  // STREAM_SYSTEM
+        12,  // STREAM_RING
+        12, // STREAM_MUSIC
+        12,  // STREAM_ALARM
+        12,  // STREAM_NOTIFICATION
+        12,  // STREAM_BLUETOOTH_SCO
+        12,  // STREAM_SYSTEM_ENFORCED
+        12, // STREAM_DTMF
+        12, // STREAM_TTS
+        12, // STREAM_ACCESSIBILITY
     };
 
     public static String streamToString(int stream) {

添加buildinfo中的音量默认设置

--- a/SC60_AP/build/make/tools/buildinfo.sh
+++ b/SC60_AP/build/make/tools/buildinfo.sh
@@ -46,7 +46,8 @@ echo "ro.product.cpu.abilist32=$TARGET_CPU_ABI_LIST_32_BIT"
 echo "ro.product.cpu.abilist64=$TARGET_CPU_ABI_LIST_64_BIT"
 
 if [ -n "$PRODUCT_DEFAULT_LOCALE" ] ; then
-  echo "ro.product.locale=$PRODUCT_DEFAULT_LOCALE"
+  #echo "ro.product.locale=$PRODUCT_DEFAULT_LOCALE"
+  echo "ro.product.locale=zh-CN" //修改成默认中文
 fi
 echo "ro.wifi.channels=$PRODUCT_DEFAULT_WIFI_CHANNELS"
 
@@ -55,4 +56,9 @@ if [ -n "$BUILD_THUMBPRINT" ] ; then
   echo "ro.build.thumbprint=$BUILD_THUMBPRINT"
 fi
 
+echo "ro.config.media_vol_default=12"
+echo "ro.config.vc_call_vol_default=12"
+echo "ro.config.alarm_vol_default=12"
+echo "ro.config.system_vol_default=12"
+
 echo "# end build properties"

也有可能被覆盖得搜索看下

--- a/SC60_AP/device/qcom/common/common64.mk
+++ b/SC60_AP/device/qcom/common/common64.mk
@@ -22,7 +22,7 @@ PRODUCT_PROPERTY_OVERRIDES += \
     persist.vendor.ntp.svr_2=cn.ntp.org.cn \
     sys.vendor.shutdown.waittime=500 \
     persist.vendor.radio.procedure_bytes=SKIP \
-    ro.config.vc_call_vol_default=4 \
+    ro.config.vc_call_vol_default=12 \
     persist.dbg.volte_avail_ovr=1 \
     persist.dbg.vt_avail_ovr=1 \
     persist.dbg.wfc_avail_ovr=1