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Q4. A public Address system (PA system) is an electronic sound amplification system which ha a microphone, amplifier and loudspeakers. In the amplifier, the sound signal will be injected inte an adjustable filter bank so that the amplifier can only respond to either low frequency (bass), medium frequency (voice) or high frequency (treble) as shown in Figure Q3. H(w) Table Q3 Sound Type Frequency Range 20HZ – 250HZ 300HZ -- 4kHz 6kHz – 20kHz Bass Bass Voice Voice Treble Treble Figure Q3 If the input signal x(t) = cos400nt + cos2000nt + cos12000nt, find the Fourie Transform of x(t) and sketch its amplitude spectrum

Q4. A public Address system (PA system) is an electronic sound amplification system which ha a microphone, amplifier and loudspeakers. In the amplifier, the sound signal will be injected inte an adjustable filter bank so that the amplifier can only respond to either low frequency (bass), medium frequency (voice) or high frequency (treble) as shown in Figure Q3. H(w) Table Q3 Sound Type Frequency Range 20HZ – 250HZ 300HZ -- 4kHz 6kHz – 20kHz Bass Bass Voice Voice Treble Treble Figure Q3 If the input signal x(t) = cos400nt + cos2000nt + cos12000nt, find the Fourie Transform of x(t) and sketch its amplitude spectrum

Introductory Circuit Analysis (13th Edition)
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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Q4. A public Address system (PA system) is an electronic sound amplification system which has a microphone, amplifier and loudspeakers. In the amplifier, the sound signal will be injected into an adjustable filter bank so that the amplifier can only respond to either low frequency (bass), medium frequency (voice) or high frequency (treble) as shown in Figure Q3. H(») Table Q3 Bass Sound Type Frequency Range Bass 20HZ -- 250HZ x()- Voice Voice 300H - 4kHz Treble Treble 6kHz – 20kHz Figure Q3 If the input signal x(t) = cos400nt + cos2000nt + cos12000nt, find the Fourier Transform of x(t) and sketch its amplitude spectrum
Transcribed Image Text:Q4. A public Address system (PA system) is an electronic sound amplification system which has a microphone, amplifier and loudspeakers. In the amplifier, the sound signal will be injected into an adjustable filter bank so that the amplifier can only respond to either low frequency (bass), medium frequency (voice) or high frequency (treble) as shown in Figure Q3. H(») Table Q3 Bass Sound Type Frequency Range Bass 20HZ -- 250HZ x()- Voice Voice 300H - 4kHz Treble Treble 6kHz – 20kHz Figure Q3 If the input signal x(t) = cos400nt + cos2000nt + cos12000nt, find the Fourier Transform of x(t) and sketch its amplitude spectrum
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