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Unformatted text preview: order of these filters? What will be their advantages or disadvantages in comparison with the designed Butterworth filter? 3. The signal Signal_5 which is available in Wave format at the myWPI web site for the course, is a DoubleTone MultiFrequency signal for a sevendigit telephone number. Design a discretetime system to recognize this telephone number. Describe your design and implement it to find out the phone number that the Signal_5 signal represent. 4. Assuming the dynamic range of (1,1), quantize the F 1 signal (in Project 1) for L=2 (one bit), L=4 (two bits), and L=8 (three bits). Plot the quantized signal and the error signal versus time for each case. What is the maximum error in each case? Compute the ratio of the energy of the original signal to the energy of the quantization error for each case. Listen to the quantized signals and discuss the relationship between the number of bits used to represent the digital signal and the audio quality of signal....
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 Spring '09
 HAKIM

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