Electronic device and method of operating the same

A method of operating an electronic device, the method comprising:

• obtaining, by at least one processor of the electronic device, a sound wave;
• identifying, by the at least one processor, whether a user associated with the sound wave is registered at the electronic device based on at least one parameter of the sound wave;
• in a case that the user associated with the sound wave is identified as not being registered at the electronic device:
• identifying whether the sound wave includes a trigger command for registering the user associated with the sound wave at the electronic device,
• registering the user associated with the sound wave such that the user is capable of controlling the electronic device using a voice signal in a case that the sound wave includes the trigger command for registering the user associated with the sound wave at the electronic device, and
• authenticating, by the at least one processor, in a case that the sound wave does not include the trigger command for registering the user associated with the sound wave at the electronic device, whether the user has an authority to control the electronic device and controlling, by the at least one processor, the electronic device according to a first instruction included in the information extracted from the sound wave, based on an authentication result;
• and
• in a case that the user associated with the sound wave is identified as being registered at the electronic device:
• identifying whether the user associated with the sound wave has the authority to issue a command to control the electronic device based on information extracted from the sound wave, and
• controlling, by the at least one processor, the electronic device based on the first instruction included in the information extracted from the sound wave in a case that the user has the authority to issue the command to control the electronic device.