3. Consider the analog audio signal x(t) = 4 cos 1000 nt + 2 sin 2000 nt -5 cos 8000 t (a) What is the Nyquist rate for this signal? (Hint: w = 2nf) (b) Suppose you wish to transmit this audio signal as stereo sound through a 2 Mbit/s connection in real time. Using a sampling rate F, = 3000 samples/s, what is the maximum average number of bits you can use to represent an audio sample? (c) You want to use a sampling frequency of 64 kHz, and also want use 16 bit/sample/channel representation. What is the minimum compression ratio you need in order to transmit the stereo audio signal?

3. Consider the analog audio signal x(t) = 4 cos 1000 nt + 2 sin 2000 nt -5 cos 8000 t (a) What is the Nyquist rate for this signal? (Hint: w = 2nf) (b) Suppose you wish to transmit this audio signal as stereo sound through a 2 Mbit/s connection in real time. Using a sampling rate F, = 3000 samples/s, what is the maximum average number of bits you can use to represent an audio sample? (c) You want to use a sampling frequency of 64 kHz, and also want use 16 bit/sample/channel representation. What is the minimum compression ratio you need in order to transmit the stereo audio signal?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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