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Design a DTMF high-band bandpass filter similar to the low-band filter design in Problem $14.43 . \mathrm{Be}$ sure to include the fourth high-frequency tone, $1633...

Question

Design a DTMF high-band bandpass filter similar to the low-band filter design in Problem $14.43 . \mathrm{Be}$ sure to include the fourth high-frequency tone, $1633 \mathrm{Hz}$, in your design. What is the response amplitude of your filter to the highest of the lowfrequency DTMF tones?

Design a DTMF high-band bandpass filter similar to the low-band filter design in Problem $14.43 . \mathrm{Be}$ sure to include the fourth high-frequency tone, $1633 \mathrm{Hz}$, in your design. What is the response amplitude of your filter to the highest of the lowfrequency DTMF tones?



Answers

If a violin string vibrates at 440 Hz as its fundamental frequency, what are the frequencies of the first four harmonics?


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