19. An electronic device, comprising: means for receiving an input sound; means for detecting speech spoken by a user in the input sound; means for determining first characteristics of an identified first frequency range of the speech and second characteristics of an identified second frequency range of the speech in response to detecting the speech, the second frequency range differing from the first frequency range; means for processing information, the means for processing information including means for determining a direction of the speech and being configured to recognize a command in the speech based on an indication of speech direction detection, wherein the means for determining the direction of the speech is configured to determine whether a direction of departure of the speech is toward the electronic device based on the first characteristics and based on the second characteristics; and means for initiating a function associated with the recognized command at the electronic device in response to the determination of whether the direction of departure of the speech is toward the electronic device based on the first characteristics and based on the second characteristics.
19. An electronic device, comprising: means for receiving an input sound; means for detecting speech spoken by a user in the input sound; means for determining first characteristics of an identified first frequency range of the speech and second characteristics of an identified second frequency range of the speech in response to detecting the speech, the second frequency range differing from the first frequency range; means for processing information, the means for processing information including means for determining a direction of the speech and being configured to recognize a command in the speech based on an indication of speech direction detection, wherein the means for determining the direction of the speech is configured to determine whether a direction of departure of the speech is toward the electronic device based on the first characteristics and based on the second characteristics; and means for initiating a function associated with the recognized command at the electronic device in response to the determination of whether the direction of departure of the speech is toward the electronic device based on the first characteristics and based on the second characteristics. 23. The electronic device of claim 19 , wherein the means for determining the direction of the speech is configured to determine whether a target of the speech is the electronic device or an external device based on the first characteristics, the second characteristics, and the indication.