The process of recovering the audio signal from the modulated wave is known as

Options

A. amplification
B. rectification
C. modulation
D. demodulation

Answer

To solve the question, we need to identify the term that describes the process of recovering the audio signal from a modulated wave. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand Modulation
- Modulation is the process of varying a carrier wave in order to transmit information. This is commonly used in communication systems to send audio signals over distances.

### Step 2: Identify the Need for Recovery
- When a signal is modulated, the original audio signal is transformed into a different form for transmission. To retrieve the original audio signal, a process is required.

### Step 3: Define Demodulation
- Demodulation is the process of extracting the original information-bearing signal from the modulated carrier wave. It is essentially the reverse of modulation.

### Step 4: Conclusion
- Therefore, the process of recovering the audio signal from the modulated wave is known as **demodulation**.

### Final Answer
- The correct answer is **demodulation**.

---