Cardioid Microphone: Uni-directional Nature
A cardioid microphone is defined by its pickup pattern, shaped like a heart.
- This pattern means the microphone is most sensitive to sounds coming from the front.
- It significantly reduces the sensitivity to sounds coming from the rear.
Because it primarily captures sound from only one direction, the cardioid microphone is classified as a uni-directional microphone.
Distinguishing Microphone Patterns
Understanding the different pickup patterns helps distinguish:
- Omni-directional: Captures sound equally from all directions.
- Bidirectional: Captures sound equally from the front and the back.
- Uni-directional: Captures sound predominantly from a single direction (like the cardioid pattern).
- Gun Microphone: Refers to a highly directional shotgun microphone, a subtype of uni-directional, but "cardioid" specifically describes the heart-shaped pattern.
The cardioid's sensitivity profile fits the definition of a uni-directional microphone.
Important Questions from Science and Technology
Which of the following is India's first privately developed rocket launched by ISRO recently?
As of January 2020, which of the following countries had NOT independently launched a human into space?
In April 2019, scientists in ________ produced the world’s first 3D printed heart using human tissue.
In January 2020, China tested the world’s first high-speed driverless bullet train between Beijing and ________.
ISRO’s Polar Satellite Launch Vehicle (PSLV) successfully launched a remote sensing satellite of which country on 28th February 2021?
