t
- T1
- T2
- T3
- table of contents
- Tacet
- Tactus
- tag
- Tag
- Tagged Image File Format
- Tails out
- talkback
- Talkback
- tally light
- tape archive
- Tape manipulation
- Tape recorder
- tape transport
- TAR
- TB
- TBC
- TCP
- TCP/IP
- TDMA
- TDR
- technology without an interesting name
- telecommunications
- telemedicine
- telephony
- telephoto
- television standards
- template
- Tempo
- temporal
- temporal compression
- tera-
- terabyte
- terminal strip
- terminate
- terminated line
- Ternary form
- Tertian harmony
- Tessitura
- text
- text editor
- text file
- texture
- Texture
- texture map
- TFT
- THD
- THD+N
- theremin
- thin film transistor
- Third / 3rd
- Thorough bass
- thread
- Threaded-Neill-Concelman
- three-finger salute
- three-point lighting
- thumbnail
- Tie
- TIFF
- tilde
- tiled windows
- tilt
- timbre
- Timbre
- time base corrector
- time code
- time code generator
- time code reader
- Time Division Multiple Access
- Time Domain Reflectometer
- timeout
- Time signature
- Time to Live
- tip-ring-sleeve
- tip-sleeve
- titler
- TNC
- TOC
- Toccata
- toggle
- token ring
- Tonal
- Tonality
- tone control
- Tone row
- Tonic
- toolbar
- torus
- total harmonic distortion
- total harmonic distortion plus noise
- touch screen
- track
- tracking
- transaction
- transceiver
- transcode
- transducer
- transfer rate
- transistor
- transistor-transistor logic
- Transmission Control Protocol
- Transmission Control Protocol/Internet Protocol
- transmission rate
- transparency
- transponder
- transport protocol
- Transpose
- Transpositionally equivalent
- Treble clef
- triad
- Triad
- Trio sonata
- Triple counterpoint
- Triplet
- tripod
- Tritone
- Tritone relationship
- Trojan horse
- troubleshoot
- TRS
- TrueType
- truncate
- truth table
- TS
- TTL
- turntablist
- Tutti
- TWAIN
- tweak
- tween
- Twelve-tone music
- twisted pair
- twos complement