A speech signal is being encoded using 8 bits per sample and then sampled at a rate of 26 kHz. The resulting binary data are then transmitted through 8-level Pulse Amplitude Modulation over an AWGN baseband channel. The bandwidth required for transmission is, (a) 36 kHz (b) 34.67 kHz (c) 39.56 kHz (d) 32.81 kHz Answer