In a PA system, a _____ is used to adjust the amplitude of different frequencies to achieve the desired quality of sound output.
PA System Component for Sound Quality Adjustment
A Public Address (PA) system aims to deliver clear and balanced sound. To achieve the desired sound quality, it's often necessary to adjust the loudness (amplitude) of specific frequency ranges within the audio signal.
Understanding the Equaliser's Role
The device specifically designed for this purpose is an equaliser. An equaliser allows control over the amplitude of different frequency bands:
- It can boost (increase) the amplitude of certain frequencies (e.g., bass or treble).
- It can cut (decrease) the amplitude of others.
This adjustment process helps to compensate for room acoustics, microphone characteristics, or artistic preferences, ultimately refining the overall sound output.
Evaluating Other Options
- Amplifier: Increases the overall signal strength but does not selectively adjust frequencies.
- Filter: Primarily used to pass or block specific frequency ranges, not finely adjust amplitude for quality.
- Attenuator: Reduces the overall signal level uniformly across frequencies.
Therefore, an equaliser is the correct component used to adjust the amplitude of different frequencies for desired sound quality in a PA system.
Similar Questions
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- What are the speakers that handle the higher range of audio frequencies called?
- A 3.1 sound system has _____.
- What is the full form of DTS?
- When a sound is produced, what travels through the medium?
- A tuning fork is struck harder. Which of the following increases as a result?
- During the propagation of sound in air, rarefaction is the region where:
- Megaphones, loudhailers, horns and musical instruments like trumpets and shehnais are designed to:
- For an echo to be heard clearly, the reflecting surface should be at least how far from the listener? (Take speed of sound ≈ 340 m/s)
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Important Questions from Sound
Which one among the following components is used as an amplifying device?
- What is required for the generation of a sound wave?
Which phenomenon is responsible for the echo of sound wave?
We hear an echo due to
Quality of a musical note depends on
