This document contains a lecture on production audio and sound. It includes links to various videos about microphones, acoustic properties of rooms, double system recording, wind noise reduction, foley, sound design, and post production audio techniques. The document covers topics such as microphone types and their uses, polar patterns, dynamic range, signal to noise ratio, diegetic and non-diegetic sound, and how sound interacts with different surfaces.
6. Music for One Apartment and Six
Drummers (short version)
http://www.youtube.com/watch?v=oEx7c-bgzKQ
7. Music for One Apartment and Six
Drummers (long version)
http://www.youtube.com/watch?v=sVPVbc8LgP4&feature=relmfu
8. Sound
Sound waves are vibrations.
Microphones convert vibrations to electrical signals.
Receivers and speakers convert electrical signals
to vibrations.
Vibrations are sound waves.
13. Sound
Acoustics
When sound hits a
• Hard surface (plastic, glass, tile, stone, metal)
more sound is REFLECTED – higher
frequencies are reinforced – sound is brighter
and sharper. LIVE
• Sounds bounce back. The larger the space,
the greater the reverberation.
14. Sound
Acoustics
When sound hits a
• Soft surface (curtains, couches, rugs) more
sound is ABSORBED, in particular higher
frequencies – sound is more mellow, even dull
or muted. DEAD
15. Sound
Acoustics
Surroundings are too “live”
• Move mic closer to subject
• Pull curtains or drape blankets
• Add thick rugs or cushions
• Use upholstered furniture
• Add acoustic panels
16. Sound
Acoustics
Surroundings are too “dead”
•Move mic further from subject
•Open curtains, increase hard surface space
•Remove rugs or cushions
•Remove upholstered furniture and use un-
upholstered furniture
•Add board, plastic, floor panels
•Add artificial reverberation (reverb) in post
24. Sound
Microphones – Dynamic (Handheld)
• Rugged workhorses
• Resist distortion from loud sounds
• Decent sound quality
• No electrical power required
25. Sound
Microphones – Condenser
• Produces very high audio quality
• Can be small
• Needs battery or phantom electrical power
• Examples – shotgun, lavalier, miniature.
44. Sound
Dynamic Range
Noun: The range of acceptable or possible volumes of
sound occurring in the course of a piece of music or a
performance.
The ratio of the largest to the smallest intensity of
sound that can be reliably transmitted or reproduced
by a particular sound system, measured in decibels
Audio Level / Gain / Amplification – Exposure
Dynamic Range – Exposure Latitude
Automatic Gain – Automatic Exposure
High Volume Distortion – Overexposure
Low Volume Noise - Underexposure
65. Sound
Foley
What is Foley Sound by Sound Ideas http://youtu.be/OONaPcZ4EAs
Foley Sound Effects For Film http://youtu.be/D5CK0HH6xBk
Learn ADR and Foley Sound! http://youtu.be/ktr-a5fSl-k
Foley Sounds In Premiere Pro CS5 – Demo http://youtu.be/lKCjw1lqJWg