Method for voice recognition and an electronic device thereof

Various embodiments of the present disclosure is directed according to a speech recognition method and relates to the electronic apparatus, for example, speech recognition method of the electronic device, the first processor using the clock given from the low-power mode of the electronic device through the microphone an input operation for recognizing the speech signal; If the keywords are speech signals the recognized set in advance, the operation of the second processor is enabled to perform the voice recording; And when the end of the voice input while the voice recording is determined comprising the operation of the second processor to perform the speech recognition, after the termination of the speech input is determined to be to change the clock of the first processor. Further, the various embodiments of this disclosure include one embodiment and other embodiments described above.