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Consider the sampling of real signal
a) Typically a speech signal that can be understood over a telephone shows frequencies from 100 to 5 Khz. What would be the sampling frequency fs(sample/sec) what would be used to sample speech without aliasing? How many samples would you need to save when storing an hour of spech? If each sample is presented by 8 bits, how many bits would you have too save for an hour of speech?
b) A music signal typpically displays frequencies from 1 up to 22 Khz. What would be the sampling frequency fs that would be used in a cd player?
c) If you have a signal that combines voice and musical instruments, what sampling frequency would yoou use to sample the signal? How would the signal sound if played at different frequency lower than the Nyquist sampling frequency?
In animation programs, special effects are achieved by changing the properties of objects. What instruction is used to change the opacity and color properties of objects in the Zeus example world?
How does a transistor switch compare to a mechanical switch In other words, a mechanical switch when it is ON has a zer impedance. What about the transistor switch
The network is used for voice communications. Is it possible for one mobile unit to connect to another mobile unit directly? What advantage is there in connecting through the hub?
Writing the mathematical equations of a DC motor develop the complete model to derive the open loop transfer function between the operating speed and applied voltage.
Design a digital circuit that can be attached to a school bill which can work automatically from 7:00 AM to 12:45 PM, and it has the following features: 1- Rings for 5 seconds. 2- Start ringing 7:00 AM to announce for the field gathering. 3- Rings 7:..
In a certain n-type region of a semiconductor in thermal equilibrium, there is a hole concentration with the following spatial distribution: po(x)=103(1 9×103x)cm 3 for0 x 10 4 withxincm Assume that in this region, the electron mobility and hole mob..
In a balanced three-phase wye-wye system, the load impedance is 10+j10 ohm. The source has phase sequence abc and the line voltage Vab= 220
what is context based arithmetic coding?and it is calculated .
Determine (a) the required step up voltage ratio for satisfactory performance; (b) the voltage ratio of a standard buck-boost transformer that most closely meets the requirements of the load with the buck-boost transformer installed.
Find the phasors corresponding to the following signals. (a) v(t) = 21 cos(4t-15o) V (b) i(t) =-8 sin(10t+70o) mA 2 (c) v(t) = 120 sin (10t -50o ) V (d) i(t) = -60cos(30t +10o) mA
If the motor is driving a load whose torque requirement remains constant at 3Nm, independent of speed. Calculate the armature voltage Va to be applied in steady state, if the load to be driven at 1500RPM.
An AB latch operates as follows: If A = 0 and B = 0, the latch state is Q = 0; if either A = 1 or B = 1 (but not both), the latch output does not change; and when both A = 1 and B = 1, the latch state is Q = 1. Construct the state table and derive ..
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