Android system sounds off on issue

Brother recently encountered a problem, some mobile phone HTC, M2, ZTE and other Dolby sound system or other sound effects , you need to manually shut down the system settings , whether in the application code to turn off these sounds through it ? Well there is this interface ? How to achieve ah ?
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is there a big Niu familiar with ALSA ? If I go directly libasound.so package JNI code , this is not an intermediate layer can bypass android audio driver ? Are there feasible ?
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nobody out this Dongdong . . . Sad. . .