ADAT
| An S-VHS tape, which is also used for ADAT | |
| Media type | Magnetic cassette tape | 
|---|---|
| Encoding | Lossless real-time | 
| Read mechanism | Rotating head | 
| Write mechanism | Rotating head, helical scan | 
| Developed by | Alesis | 
| Usage | Professional digital audio | 
| Extended from | S-VHS | 
| Released | 1991 | 
Alesis Digital Audio Tape, commonly referred to as ADAT, is a magnetic tape format used for the recording of eight digital audio tracks onto the same S-VHS tape used by consumer VCRs, and the basis of a series of multitrack recorders by Alesis. Although originally a tape-based format, the term ADAT later also referred to hard disk recorders like the Alesis ADAT HD24. In 2004, recognizing the ADAT for "beginning a revolution of affordable recording tools," it was inducted into the first-ever TEC Awards TECnology Hall of Fame.