+ STT_ERROR_NO_SPEECH = TIZEN_ERROR_STT | 0x06, /**< No speech while recording */
+ STT_ERROR_IN_PROGRESS_TO_READY = TIZEN_ERROR_STT | 0x07, /**< Progress to ready is not finished */
+ STT_ERROR_IN_PROGRESS_TO_RECORDING = TIZEN_ERROR_STT | 0x08, /**< Progress to recording is not finished */
+ STT_ERROR_IN_PROGRESS_TO_PROCESSING = TIZEN_ERROR_STT | 0x09 /**< Progress to processing is not finished */