A voice signal m(t) is to be digitized using a PCM encoding scheme. The bandwidth of the signal is 10 KHz, and the signal is to be quantized using a uniform quantization scheme for each of two ranges of the signal. Let m, be the peak value of m(1)], and let m be a sample of m(t). If |ms| < and if m 2 m then the quantization error should be less than 0.1% of the peak, mp, 2|ms|m, then the quantization error should be less than 0.4% of the peak. a) b) c) Determine a quantization scheme by listing all the threshold values; that is, specify the char- acteristics of the quantizer by giving the quantizer characteristics the output quantized level versus the input analog voltage level. What is the number of bits per sample if a binary encoding scheme is used. Determine the bit rate for the digitized voice signal assuming a 20% oversampling rate in order to facilitate the filtering.