COMMUNICATION DEVICE AND COMMUNICATION METHODS

摘要

Audio data transmitted from another communication device is received by a receiver, and the received audio data is output to a speaker of a television. Audio is generated based on the output audio data, and the audio is input to a microphone of a camera/microphone device. Audio data corresponding to the input audio is input to an echo cancellation processing unit. An amount of distortion of the input audio data with respect to the received audio data is detected by the echo cancellation processing unit. It is determined whether or not the amount of distortion of the audio data detected by a distortion detector exceeds an acceptable amount. When the amount of distortion of the audio data exceeds the acceptable amount, notification data for presenting to the user a request for change of an output condition of the audio in the television is produced by a notification signal producer.