typedef enum
{
    APP_MODE_MICROPHONE_LOOP=0,
    APP_MODE_SD_CARD_VOICE_RECORD,
    APP_MODE_SD_CARD_PLAYBACK,

}APP_MODE;

typedef enum
{
    APP_MODE_DISPLAY_CONTROLS_DEFAULT=0,
    APP_MODE_DISPLAY_CONTROLS_DISABLE,
    APP_MODE_DISPLAY_CONTROLS_ENABLE

}APP_MODE_DISPLAY_CONTROLS;