What Stereo Means :-

How then comes the virtualization ??

What do we need for the transmission?• We need two different signals L(left) &R(right) to be modulated, transmitted, receivedand demodulated duly without getting distorted

We need :----

a.An input signalb.Two preemphasizersc.A DSB-SC modulatord.A frequency doublere.A pilot signalf. A summerg.An FM modulator

Why do we need L + R & L – R??

A mono phonic receiver will work with only the L+R component and there will no loss of AUDIO(so the signal will have the backward compatibility)

We need :----

a. An input signal (through a LIMITER DISCRIMINATOR)

b. A Low Pass Filter(0-15 KHz)c. A Bandpass Filter(19 KHz)d. A Bandpass Filter( 23 – 53 KHz)e. A pilot signalf. A Frequency Doublerg. A Synchronous Detectorh. Two Deephasizers

Preemphasizer refers to a system

process designed to increase, within a band of frequencies, the magnitude of some (usually higher) frequencies with respect to the magnitude of other (usually lower) frequencies in order to improve the overall signal-to-noise ratio by minimizing the adverse effects of such phenomena as attenuation distortion or saturation of recording media in subsequent parts of the system.

Deemphasizer refers to a system process designed to decrease, within a band of frequencies, the magnitude of some (usually higher) frequencies with respect to the magnitude of other (usually lower) frequencies in order to improve the overall signal-to-noise ratio by minimizing the adverse effects of such phenomena as attenuation distortion or saturation of recording media in subsequent parts of the system.

QUESTIONS ARE WELCOME