Electronic device and method for detecting error of a signal

A method performed by an electronic device including a microphone, a speaker, and a communication circuit, the method comprising:

• based on decoding a first signal received through the communication circuit from an external electronic device, obtaining a second signal,
• obtaining a third signal to be output through the speaker based on executing decompression for the second signal,
• obtaining a fourth signal to be used for echo cancellation, based on processing the second signal,
• comparing the second signal with the fourth signal,
• based on the fourth signal being identified via the comparison as including a distortion, compensating for the second signal,
• outputting, through the speaker, the third signal,
• while the third signal is output, obtaining an input signal through the microphone, and
• executing echo cancellation with respect to the input signal based on the compensated second signal.

An electronic device, comprising:

• a microphone;
• a speaker;
• memory storing instructions;
• a communication circuit;
• and
• at least one processor comprising processing circuitry,
• wherein the instructions, when executed by the at least one processor individually or collectively, cause the at least one processor to:
• based on decoding a first signal received through the communication circuit from an external electronic device, obtain a second signal,
• obtain a third signal in which a pilot signal is added to the second signal,
• output a fourth signal through the speaker obtained based on executing decompression for the third signal,
• detect a distortion of the pilot signal included in an input signal, in response to obtaining the input signal including the output fourth signal through the microphone,
• based on detecting the distortion of the pilot signal, compensate the second signal to provide a compensated second signal in accordance with a difference between the second signal and the fourth signal representing the distortion of the pilot signal, and
• execute echo cancellation with respect to the input signal based on the compensated second signal.