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Microphones

Microphones. Sound-a-licious-ness. Every Tool Has It’s Place. Types. Microphones come in all sorts of shapes and sizes, but they all have a specific use. Make sure you have the right tool for the job. Sound Recording.

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Microphones

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  1. Microphones • Sound-a-licious-ness.

  2. Every Tool Has It’s Place

  3. Types Microphones come in all sorts of shapes and sizes, but they all have a specific use. Make sure you have the right tool for the job.

  4. Sound Recording • Films and Television programs often record sound on a device independent of the camera. • They use a slate to sync sound, and then match up sound in post. • High End devices uses crystals.

  5. Microphone Types • There are three basic types • Dynamic • Condenser • Electret Condenser

  6. Dynamic • Have a moving coil surrounded by a magnet that picks up wavelengths of sound and causes the coil to vibrate. • Used a lot by musicians, and recording artists • Very rugged and resistant to hand noise • Do not require a power source

  7. Condenser Mic • Used extensively for motion picture sound recording. • Tend to be more sensitive, fragile and expensive. • Use a capacitor circuit to generate electricity from sound. The sound moves a plate, and the changes in the plates movement reproduce the sound.

  8. Electret Microphone • Most common mic in the world • Used for everyday appliances and gadgets (like cellphones, or laptops, headsets) • Very cheap to manufacture • “Function over form”

  9. Pick Up Patterns • Each microphone has specific type of pick-up pattern, which is a configuration of directions in space in which it is sensitive to sound.

  10. Omni Directional • Pick up sounds in every direction • Great general all around mics • Not spectacular in any one area • Will pick up the person behind the mic or camera

  11. Cardioid • Have a heart-shaped pick-up pattern • Tend to be very front heavy, with secondary sounds on the side • Least sensitive to space behind the mic

  12. Hyper Cardioid • Sometimes referred to as a Shotgun Mic • Strong focus on a narrow space in front • Good for picking up sound at a distance • Very little focus on the sides (no spread) • Can be sensitive behind the mic

  13. Cables • Most audio uses XLR Cables (balanced) • Takes the two signal wires and wraps them in a third wire • Protects it from interference • Can use several hundred feet at once

  14. How to Wrap

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