Active Noise Control Quiz

What is the primary goal of the Active Noise Control System?

• Increase noise level

• Minimize residual noise

• Amplify unwanted noise

• Enhance ambient noise

What is the abbreviation for Active Noise Control?

• NCA

• ANC

• ACN

• NAC

What is the role of the cancelling loudspeaker in the ANC system?

• Pick up residual noise

• Generate primary noise

• Detect noise signal

• Create anti-noise

What is the purpose of the error microphone in the ANC system?

• Provide feedback

• Transfer anti-noise

• Minimize residual noise

• Analyze noise signal

What is the function of the Reference microphone in the ANC system?

• Transfer feedback

• Pick up residual noise

• Analyze primary noise

• Generate anti-noise

Which component of the ANC system is responsible for creating anti-noise?

• Sensor

• Cancelling loudspeaker

• Error microphone

• Reference microphone

What is the purpose of the sensor in the ANC system?

• Detect noise

• Generate anti-noise

• Analyze noise signal

• Transfer residual noise

What is the significance of the sampling frequency in the ANC system?

• Measures residual noise

• Controls anti-noise generation

• Affects signal detection

• Determines noise level

How does the ANC system reduce noise?

• By cancelling unrequired noise

• By amplifying residual noise

• By generating more noise

• By increasing noise level

What is the main principle behind Active Noise Control?

• Frequency modulation

• Amplitude amplification

• Wave superposition and wave cancellation

• Phase inversion