Design a circuit which removes the entire audio frequency range (approximately 20 Hz to 20 kHz,...
Q7) A frequency of 46 kHz is higher than the normal audible range of 20 Hz to 20 kHz for a human being. Consider a continuous-time signal x(t) - cos(2mfot) where fo 46 kHz. Sample the signal using a sampling rate of fs 48 kHz. A) Derive a formula for the discrete-time signal x[n] that results from sampling x (t) B) Using only analysis of x[n] in the discrete-time domain, determine the discrete-time frequency to which the continuous-time frequency of...
1. Read the laboratory supplement entitled “Frequency Response". 2. Read the remainder of this handout. 3. In Multisim, build the circuit shown in Figure 1 with C=0.22 uF and R = 2.2 k12. This circuit looks like a simple voltage divider except that one of the resistors is replaced by a capacitor. Il Figure 1: RC network. F Set up Vin to be a 1 Vpp sinusoid with 0 VDC Offset using a function generator. 2. Connect the oscilloscope in...
A person with normal hearing can hear sound waves that range in frequency from approximately 20 Hz to 20 kHz (1 kHz=1 kilohertz=103 Hz). Assuming the same medium, when compared to a 20 Hz sound wave, a 20 kHz sound wave has A. a shorter wavelength and a faster propagation speed. B. a shorter wavelength and a slower propagation speed. C. none of these. D. longer wavelength and a faster propagation speed. E. a longer wavelength and a slower propagation...
The range of human hearing extends from approximately 20 Hz to 20,000 Hz. Find the wavelengths of these extremes at a temperature of 28.0°C. 20 Hz______m 20,000 Hz_____m
04: A- An arm-strong-type FM system is to handle in the audio range 100-300 Hz first generates FM signal with B = 0.2 and fo= 200K Hz the design output is required to have a carrier frequency to 40MHz and peak frequency deviation of 5KHz, using one frequency multiplier and one frequency mixer to design a system configration to accor the desired objective, determine the following parameters (fm. 4. fafcz), then draw the circuit?
The range of human hearing extends from approximately 20 Hz to 20000 Hz. a. Find the wavelength for 43.2 Hz at a temperature of 34.7 ?C. Assume the velocity of sound at 0?C is 331 m/s. Answer in units of m b. Find the wavelength for 1960 Hz at a temperature of 34.7 ?C. Answer in units of cm
Design a “rumble” filter for audio. It should pass frequencies greater than 20 Hz. Assume the source impedance is zero (that is, the voltage supply is perfect) and 10K minimum load impedance (which means the load could be variable and have a much higher impedance). Make a figure showing the expected output of the filter designed.
Dolphins emit sound bursts that range in frequency from 1 Hz to 120 kHz. Say that a dolphin is using a sound burst consisting of these frequencies as a form of sonar, like bats. Let the burst last for a time interval of 10 ms, after which it listens for 100 ms. Say that the logarithmic intensity (loudness) of the dolphin's sound is 50 dB as measured at 1 m away. Dolphins can hear sounds that are 2 dB below...
Design a low pass filter with a cutoff frequency of 1 kHz +/- 100 Hz and a gain of 16.0 dB +/- 1.0 dB in the passband. The R2 and C components of the filter control the cutoff frequency, and are inversely proportional to the cutoff frequency. So decreasing the resistance or capacitance will increase the cutoff frequency. The R1 and Rf components determine the gain of the amplifier. Increasing the value of Rf will increase the gain. Increasing the...
The circuit shown in Figure Q4-1 includes an audio source and the equivalent circuit of a loudspeaker that you have been asked to analyse. 4. a) Assuming the speaker is to operate at a single frequency of 200 Hz and is5 driven by a cosinusoidal signal with peak amplitude of 20 V; determine the equivalent impedance of the speaker When connected to the audio source, calculate the current flow i() When testing the loudspeaker detailed in Q4a) i), you can...