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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9

Feedback
Literally the return of a portion of the output of a process or system to the input. In our discourse (of audio and video production) we mostly encounter feedback when an open microphone is picking up sound from a nearby loudspeaker that is also being used to amplify sound from the same microphone. This forms what is known as a feedback loop. The sound of the room enters the microphone and is then amplified by the speaker. This amplified sound then becomes part of the sound of the room entering the microphone, which causes it to get amplified by the speaker again. If too much of this "feedback" occurs the signal will "run away" and quickly degrade into an oscillation at some frequency. This sound is the "squeal" we've all come to know and hate and is what we typically call feedback (though technically feedback occurred well before the squeal happened). It is also possible to produce electronic feedback. Routing the output of a mixer or effect unit back to its input is a sure way to do this. In fact, many effects are based on using this phenomenon creatively, the most obvious one being an echo with multiple repeats. Feedback and "feedback loops" are also used in all kinds of electronic circuits to achieve specific results. Old analog oscillators are based on electronic feedback.

F-Hole

F-spacing

Factory Preset

Fade

Fade In

Fadeout

Fader

Fairlight CMI

Fake Book

Falsetto

Fan-out

Fan Strutting

FAQ

Farad

Faraday Shield (or Faraday Cage)

Far Field

FAT

Fat-32

FDDI

Feathering

Feedback

Feedback Compressor

Feedback Eliminator

Felt

Fender "Woodies"

Fender Bass

Fender Blender

Ferrite

Ferro Fluid

Ferrule

Field Effect Transistor (FET)

Fibre Channel

Fiddleback Maple

Fidelity

Field

Field Coil

Field Coil

FIFO

Figure/Figuring

Figure 8

Figured Koa

Filament

File

File Server

Fill

Film Capacitor

Filter

Filter Capacitor

Filter Slope

FilterTron

Finale

Finalize

Finder

Fingerboard

Fingering

Fingerstyle

FireWire

FireWire 400

FireWire 800

 FireWire Repeater

Fir Filter

Firmware

First Wavefront Law

Fixed Bias

Fixed Bridge

Fixed Hard Drive

Fixed Head

Fixed Point

Flam

Flame Maple

Flamenco

Flange/Flanging

Flash

Flash Card

Flash Drive

Flash Frame

Flat

Flat-picking

Flat Response

Flat Sawn

Flat Top Guitar

Flatwound

Fleck

Fletcher-Munson Curves

Flick Action Console

Flitch-Matching

Float/Floating

Floating Bridge

Floating Pickup

Floating Point

Floating Sound Unit

Floating Unbalanced Line

Floating Vibrato

Floor Tom

Floppy Disk

Florentine Cutaway

Flutter

Flutter Echo

Flux

Fly

Fly Point

Frequency Modulation (FM)

FM Synthesis

FOH

Foil Shield

Fold-Down

Foldback

Folder

Foley

Fool

Footboard

Footswitch

Forearm Cut

Formant

Format

Formatted Capacity

Former

Fortepiano

 Forward-shifted Bracing

Forward/Reverse Bias

Found Sound

Four-on-the-Floor

Fourier Analysis

FPGA

FPU

Fractal

Fragmentation

Frame

Frame Count

Frame Rate

Free Field

Free Lossless Audio Codec (FLAC)

FreeMIDI

Free Reed

Free Reed

Freeware

Freeze

Frequency

Frequency Agile

Frequency Doubling

Frequency Range

Frequency Response / Frequency Range

Frequensator

Fret

Fretboard

Fret Buzz

Fret Crown

Fret Dress

Fretless Wonder

Fret Tang

Frondose

Front Address

Front Loaded

Front of House

Fs

FSB

FSF (Free Software Foundation)

FSK

FTP

Full Code

Full Duplex

Full Normal

Full Range

Full Scale

Full Space

Full Track

FUN

Function Generator

Fundamental

Funky Drummer

Fuse

Fusion

Fusion Zone

Futurama

Fuzz

Fuzz Face

     
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