एकल-टोन मॉड्यूलेशन वाले एक FM ऑडियो सिग्नल का आवृत्ति विचलन (frequency deviation) 25 kHz और बैंडविड्थ 75 kHz है। कार्सन के नियम का उपयोग करके निर्धारित मॉड्यूलेटिंग सिग्नल की आवृत्ति क्या है?

Which of the following statements is FALSE about envelope demodulation?

The number of quantization levels in a PCM system is increased from 4 to 64. The transmission bandwidth required for the PCM signal increases by a factor of:

An audio signal comprising a single sinusoidal term s(t) = 3 cos(2π × 1000t) is quantized using Delta Modulation (DM) with a step size chosen to just avoid slope overload. What is the approximate signal-to-quantization noise ratio (SQNR) in the reconstruction bandwidth up to 1 kHz?