/**  @hide Default volume index values for audio streams */
public static final int[] DEFAULT_STREAM_VOLUME = new int[] {
    4,  // STREAM_VOICE_CALL
    7,  // STREAM_SYSTEM
    5,  // STREAM_RING
    11, // STREAM_MUSIC
    6,  // STREAM_ALARM
    5,  // STREAM_NOTIFICATION
    7,  // STREAM_BLUETOOTH_SCO
    7,  // STREAM_SYSTEM_ENFORCED
    11, // STREAM_DTMF
    11  // STREAM_TTS
};

 /** @hide Maximum volume index values for audio streams */
private static final int[] MAX_STREAM_VOLUME = new int[] {
    5,  // STREAM_VOICE_CALL
    7,  // STREAM_SYSTEM
    7,  // STREAM_RING
    15, // STREAM_MUSIC
    7,  // STREAM_ALARM
    7,  // STREAM_NOTIFICATION
    15, // STREAM_BLUETOOTH_SCO
    7,  // STREAM_SYSTEM_ENFORCED
    15, // STREAM_DTMF
    15  // STREAM_TTS
};