Patent ID: 8332058

Claim:
A process for transmitting digitized audio data of high quality and with a short delay, the method comprising: using a channel filter to shape a high frequency spectrum of the digitized audio data transmission; and a step of processing the digitized audio data in blocks, where an audio bandwidth is proportional to a symbol rate; wherein the channel filter shapes the high frequency spectrum to have no attenuation in a first frequency range of about 100 to 300 kHz useful bandwidth; wherein the channel filter shapes the high frequency spectrum to have a stop-band attenuation of more than 60 dB in a frequency range outside the first frequency range; wherein, in a bandwidth of about 150 to 250 kHz: the symbol rate is approximately in a range between 130 and 220 kHz; and a rolloff factor (α) is in a range between 0.1 and 0.5; and wherein the bandwidth is calculated in accordance with the formula: BW=(1+α)· f sym .