Patent ID: 6404891
Filing Date: 2002-06-11
Classification: H03G,H04B

Abstract:
An audio distribution system, comprising:a central transmission station for transmitting an audio signal in a digital serial transmission link; a reception station comprising: a receiver for receiving the audio signal on the digital serial transmission link; an error detector for detecting errors in transmission of the audio signal on the digital serial transmission link, the error detector comprising: a counter for maintaining a count representative of the rate of the detected transmission errors, and to modify the count in a first direction responsive to a transmission error detected by the error detector and in a second direction responsive to an absence of a transmission error detected by the error detector; and a count smoothing means for producing a smoothed value related to a moving average of the count; and a volume controller for dynamically adjusting volume of the audio signal as a function of the rate of the detected transmission errors, the volume controller operating to dynamically adjust the volume of the audio signal based on the smoothed value whereby rapid volume fluctuation is avoided.