Electronic device for outputting sound and operating method thereof

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

• receiving, via a microphone of the electronic device, a speech signal including reverberation uttered by a user wearing the electronic device;
• receiving, via a vibration sensor included in the electronic device, a vibration signal related to the speech signal, the vibration signal being sensed through at least a portion of a body of the user when the speech signal is uttered by the user;
• identifying an impulse response signal based on the speech signal and the vibration signal;
• predicting reverberation information based on the impulse response signal;
• and
• eliminating the reverberation included in the speech signal based on the predicted reverberation information.

A non-transitory computer-readable recording medium storing one or more instructions which, when executed by a processor of an electronic device, cause the electronic device to execute a method comprising:

• receiving, via a microphone of the electronic device, a speech signal including reverberation uttered by a user wearing the electronic device;
• receiving, via a vibration sensor of the electronic device, a vibration signal related to the speech signal, the vibration signal being sensed through at least a portion of a body of the user;
• identifying an impulse response signal based on the speech signal and the vibration signal;
• predicting reverberation information based on the impulse response signal;
• and
• eliminating the reverberation included in the speech signal based on the predicted reverberation information.