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Audio Post Production Knowledge Base
Welcome to TriggerTone — the searchable online guide to audio post production terminology.
For more than a century, those who work with audio have developed a vocabulary all their own - a lexicon where cans are worn over your ears, clipping has nothing to do with coupons, bias never refers to favoritism, sweetening contains no sweetener, a matrix does not star Keanu Reeves, and "wow" is one thing you never want to hear.
TriggerTone signals the start of your search through the multitude of terms used in audio post. Curious why motor boating has sunk your track or how an anomaly with a name as innocuous sounding as flutter could cause so many rejections? The definitions herein were written for professionals not necessarily familiar with the physics of sound or the mind numbing details of an audio engineering textbook. Rather, the goal of TriggerTone is to provide concise, clear interpretations of terms as they relate to audio post embellished with sound clips and illustrations where helpful.
The gate is open; soon your head will be filled. To get you started, please remember that in the world of sound you do not need to layback to laydown, and you absolutely can not eat the pancakes.
Browse the most popular viewed terms.
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Sync-pop |
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17.5mm Film |
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Lt/Rt |
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Foley |
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Optical Sound Track |
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DAT |
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restoration
post production
sound theory
home equipment
synchronization
Quadrophonic Stereo
The term Quadrophonic, or Quadraphonic, either are correct, was coined in the early 1970s to describe a four-channel sound presentation used in the recording and broadcast industries.
The speaker placement is frontLeft, frontRight, rearLeft and rearRight (fL,fR,rL,rR), with the listener sitting 
Noise Floor
The inherent noise of a recording medium, a noise floor typically sounds like hiss and differs with the makeup of different types and qualities of tape and film.
For example, a consumer grade cassette tape has a higher noise floor than a professional 1/4” tape, and a high quality digital
Magneto Optical Disk
A magneto optical disk, or MOD, is a digital data storage medium. Like a hard drive, CD, DVD, and flash drive, it reads and writes digital data. MODs are removable media, separate from the drive mechanism, that are housed in a protective case.
In post-production, MODs primarily serve three