Patent ID: 7092382
Filing Date: 2006-08-15
Classification: H04L,H04M

Abstract:
1. A method for improving the quality of an audio transmission, comprising: asynchronously transmitting audio data including samples of an audio signal in data packets from a transmitting communication system via a packet-oriented communication network to a receiving communication system; and detecting an information item relating to the transmission of data packets; and converting the audio data such that their sampling rate is altered by digital filtering, wherein the sampling rate being altered based on the detected information item, in such a manner that due to the altered sampling rate, a quality of service of the audio transmission is optimized with regard to a current transmission situation indicated by the detected information item, the transmission of the data packets is monitored by the receiving communication system and the information item relating to this transmission is transmitted to the transmitting communication system and the audio data are converted by the transmitting communication system based on the information item transmitted, and the received audio data are converted after having been read out of an input buffer provided for compensating data packet delay variations, in which the read-out speed of the input buffer is controlled by a change in an audio data rate due to the conversion.