Patent ID: 7945442
Filing Date: 2011-05-17
Classification: G10L

Abstract:
1. An Internet communication device, playing a remote audio signal received through a network and transmitting an audio signal to a remote user through the network to complete a conversation, comprising: a line-in speech detection module, detecting whether the remote audio signal is speech or not to generate a remote speech detection result; and a line-in channel control module, coupled to the line-in speech detection module, muting the remote audio signal when the remote speech detection result indicates that the remote audio signal is not speech, thus, noise is removed from the remote audio signal; wherein the line-in channel control module comprises: a detection frequency module, counting the frequency that the remote speech detection result is true during a speech period of a speech period signal to determine a detection frequency, wherein the speech period is a period during which the speech period signal is true; the speech period control module, coupled to the detection frequency module, generating the speech period signal to control muting of the remote audio signal, extending the speech period if the detection frequency is greater than a frequency threshold, and shortening the speech period if the detection frequency is less than a frequency threshold; and an attenuation control module, coupled to the detection frequency module and the speech period control module, muting the remote audio signal according to the speech period signal.