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# Exercises

1. A pulse train consists of Hann windows (raised cosines), end to end, without any gaps between them. What is the resulting spectrum?

2. To synthesize a formant at 2000 Hertz center frequency and fundamental 300 Hertz, what should the values of and be (in the terminology of Figure 6.8)?

3. How would you modify the block diagram of Figure 6.8 to produce only odd harmonics?