Microphone pickup patterns g
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Microphones can be designed to pick up sound from certain directions while rejecting sound from others. The main pickup patterns are omnidirectional, which picks up sound equally from all directions; cardioid, which is most sensitive to sound from the front; hyper or super cardioid, which is even more directional; and bi-directional, which is sensitive to sounds from the sides. Different patterns are suited to different recording needs like group pickup or reinforcement for one or two people.
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1) Sound is measured in decibels (dB) using a VU meter, and sound louder than 0 dB becomes distorted.
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Microphone is one of the essential tools in broadcasting. Hence, getting familiar with it is a must for all broadcasters.
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There are several microphone patterns that determine the directionality of sound pickup. Omni-directional microphones pick up sound equally from all directions, making them good for interviews where mic angle is variable. Cardioid microphones are most sensitive to sound from the front and pick up less from the sides and back, reducing feedback and ambient noise. Bi-directional microphones pick up sound equally from the two sides but not the front or back. Mid-side stereo techniques use a bi-directional mic together with a cardioid mic to allow control over the left-right stereo image during mixing. Hypercardioid and shotgun microphones have a tight, directional pickup pattern that focuses on sound from directly in front
Microphone ppt
The document discusses two main types of microphones used in recording: dynamic microphones and condenser microphones. It provides details on dynamic microphones, which do not require a power supply, are fairly low cost, and can handle high sound pressure levels, making them suitable for vocals, drums, guitar amps, and other general purposes. Applications of dynamic microphones include use in home studios and for loud instruments like electric guitar or bass and drums due to their ability to withstand high sound pressure levels.
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Microphone pickup patterns g
- 2. Pickup Patterns Microphones can be designed to be sensitive to sounds from given directions while they reject sounds from others. The directional characteristics, or pickup patterns, are defined by noting the direction from which a microphone is optimally sensitive to sound waves. The most common patterns are omnidirectional, cardioid, hyper or super cardioid, and bi-directional.
- 3. Omnidirectional Omnidirectional microphones pick up sound from all directions equally - with a slight preference for sounds coming from the direction in which they are pointed. Omni-directional microphones are typically used for recording and group pick-up.
- 4. Cardioid Cardioid microphones have a heart-shaped pickup pattern and are sensitive to sounds predominantly from the front of the microphone diaphragm. They love sound from the direction in which they are pointed and reject sound coming from the sides and rear.
- 5. Hyper or super cardioid Hyper or super cardioid microphones are even more directionally sensitive. They are sensitive to sound coming from one direction, and are typically used for sound reinforcement for one or two people.
- 6. Bi-directional Bi-directional microphones are Sensitive to sounds from the sides 180 degrees apart, while rejecting sound from all other directions
- 7. Shotgun Microphones Shotgun mics have a narrow range that can pull in sound from a distance in one direction. When you can’t get right up to the subject and want to block sound from all other directions
- 8. Identifying a Microphone's Pickup Pattern A manufacturer will often provide a polar pattern of a microphone, which plots the sensitivity of a given microphone based on its sensitivity to specific frequencies coming from all directions.
- 9. Identifying a Microphone's Pickup Pattern Many mics have an icon on the side which indicates the type of pickup pattern.