2. A digital signal processing system with analog audio signalinput in the range of 0-20 Khz uses oversampling techniques and asecond order sigma delta modulator to convert the analog signalinto a digital bit stream at a rate of 3.072 Mhz.
i) Explain how the digital bit stream may be converted in to adigital multibit stream for x(n).
ii) Determine the overall improvement in signal to quantizationnoise ratio made possible by oversampling and noise shaping andhence estimate the effective resolution in bits of thedigitizer                                                                                                Â
