android - Android 4.0.3+ 上的全局音频和 session ID

Question

我在市场上有一个应用程序可以将低音增强效果应用于全局音频混合。不幸的是， Audio Session 0 的使用自 4.0.3 以来已被弃用，我一直无法找到解决方法。有没有办法扫描 Audio Session ID？这是我的日志:

10-16 20:58:01.569: E/AndroidRuntime(645): FATAL EXCEPTION: main
10-16 20:58:01.569: E/AndroidRuntime(645): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.rustlesoft.bassbooster/com.rustlesoft.bassbooster.BassBooster}: java.lang.IllegalArgumentException: Effect type: 0634f220-ddd4-11db-a0fc-0002a5d5c51b not supported.
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.app.ActivityThread.access$600(ActivityThread.java:130)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.os.Handler.dispatchMessage(Handler.java:99)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.os.Looper.loop(Looper.java:137)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.app.ActivityThread.main(ActivityThread.java:4745)
10-16 20:58:01.569: E/AndroidRuntime(645):  at java.lang.reflect.Method.invokeNative(Native Method)
10-16 20:58:01.569: E/AndroidRuntime(645):  at java.lang.reflect.Method.invoke(Method.java:511)
10-16 20:58:01.569: E/AndroidRuntime(645):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
10-16 20:58:01.569: E/AndroidRuntime(645):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
10-16 20:58:01.569: E/AndroidRuntime(645):  at dalvik.system.NativeStart.main(Native Method)
10-16 20:58:01.569: E/AndroidRuntime(645): Caused by: java.lang.IllegalArgumentException: Effect type: 0634f220-ddd4-11db-a0fc-0002a5d5c51b not supported.
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.media.audiofx.AudioEffect.<init>(AudioEffect.java:381)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.media.audiofx.BassBoost.<init>(BassBoost.java:101)
10-16 20:58:01.569: E/AndroidRuntime(645):  at com.rustlesoft.bassbooster.BassBooster.<init>(BassBooster.java:14)
10-16 20:58:01.569: E/AndroidRuntime(645):  at java.lang.Class.newInstanceImpl(Native Method)
10-16 20:58:01.569: E/AndroidRuntime(645):  at java.lang.Class.newInstance(Class.java:1319)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
10-16 20:58:01.569: E/AndroidRuntime(645):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)
10-16 20:58:01.569: E/AndroidRuntime(645):  ... 11 more

Answer 1

它可能已被弃用，但只要您有 MODIFY_AUDIO_SETTINGS 权限并且您没有，对全局输出混合( session 0)应用效果在 ICS 和 JB 中仍然有效t 还对 0 以外的 session 应用任何效果。