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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

THD (Total Harmonic Distortion)
The ratio of the power of the fundamental frequency at the output of a device versus the total power of all the harmonics in the frequency band at the output of the device. Basically, all electronic audio devices introduce some distortion to audio passed through them. The simplest form of this distortion is the addition of harmonics to the outputted signal. THD represents the sum of all the harmonics added by a device as a percentage of the level of the signal being measured. The closer THD is to zero, the more "transparent" a device should sound (all other things being equal, which they never are...).

Various devices contribute differing types of harmonic content to a signal, this is part of what can give them their distinctive sounds. For example, tubes add different harmonics than transistors, different circuit designs emphasize different harmonics, etc. When engineers talk about the "sound" of a piece of equipment, this is a part of what they are referring to.


T-top

T-Zone Tempered Treble

Terminal Adapter (TA)

TA4F

Tab

Tablature

Tabletop

Tach pulse

Tail

Tailpiece

Tails Out

Take

Talkback

Tamo Ash

Tang

Tangential Room Mode

Tap

Tape

Tape Delay

Tape Head

Tape Pack

Taper

Tape Saturation

Tape Wound

Tapping

Tap Tempo

Tap Tempo

Tarnish

TB

TCP

TDIF

TDM

Tea Chest Bass

Technical Ground (a.k.a. technical earth ground)

Ted McCarty

TEF

Telecine

Telescoping Shield

Temperament

Template

Tempo

Tempo Map

Temporary Threshold Shift

Temp Score

Tenon

Tenor

Tension Rod

Terabyte

TeraFLOPS

Terminal

Terminal Strip (a.k.a. barrier strip)

Terminator / Termination

Test Tone

Tetrode

TFT

THD (Total Harmonic Distortion)

THD+N

"The Log"

Theremin

Thermal Noise

Thermal Recalibration

Thermionic Emission

Thimbles

Thin-Skin Nitro

Thinline

Third-Harmonic Distortion

Third Party

Thread

Three-Phase

Threshold

Threshold of Distortion

Threshold of Feeling

 Threshold of Pain

Through-composed

Throughput

Thru Box

Thumb Drive

Thumbnail

THX

Tick

Tiger

Timbre

Time-Based Effect

Time-delay Spectrometry

Time Aligned

Time Alignment

Time Base

Time Code

Time Code Address

Time Compression/Expansion

Timeline

Time Machine

Time Out

Time Signature

Tine

Tine Piano

Tinning

Tinnitus

Tivoli Vistalite

TNC

Table Of Contents (TOC)

Toccata

Tolerance

Tolex

Tom

Tom-tom

Tone

Tone Burst

Tone Control

Tone Stack

Tone Transfer

Tonewheel

Tonewoods

Tonguing

Tonic

Tonicization

Tonic Sol-Fa

Top

Top-note Priority

Top Boost

Top End

Top Wrapping

Toroid

Torrification

Torrified

Tortoiseshell

TOSLink

Touch Pad

Touch Screen

Touch Sensitive

Tower Computer

Trace

Tracheid

Track

Track-at-Once (TAO)

Trackball

Track Count

Tracking

Transconductance

Transcription

Transducer

Transfer Rate

Transformer

Transient

 Transient Response

Transimpedance Amp

Transistor

Transition band

Transmission Loss

Transondent

Transparent

Transport

Transportable Mix

Transport Controls

Transpose

Transwave

Trapeze Tailpiece

Trap Kit

Trash

Treble

Treble Bleed Capacitor

Trembucker

Tremolando

Tremolo

Tremolo Block

Tri-Amp

Triad

Triangle Wave

Trigger

Trigger Sync

Trim

Triode

Triode

Triple-Back

Triple Meter

Triplet

Tritone

Troubleshooting

TRS

True Bypass

True Bypass Looper

True Diversity

True Stereo

Truncate

Truss

Truss Rod

Truss Rod Cover

TS

TT

Tube

Tube Microphone

Tuchel

Tulip Poplar

Tune

Tune-O-Matic Bridge

Tuner

Tuner Button

Tuning

Tuning Fork

Tuning Gears

Tuning Key

Tuning Machine

Tuning Peg

Turnaround

Turnkey

Tusq

Tutorial

TVA

TVF

TVS

Tweed

Tweeter

Twisted Pair

Two's Complement

     
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