Editing Automatic double tracking (section)

===Other users of ADT===
Townsend's technique, and minor variations on it, quickly caught on with other artists and [[record producers]]. Former Beatles engineer [[Norman Smith (record producer)|Norman Smith]] used ADT extensively on [[Pink Floyd]]'s debut album ''[[The Piper at the Gates of Dawn]]'', recorded at Abbey Road in 1967. As well as using it for more conventional simulated double tracking, Smith made much use of the technique to split [[Syd Barrett]]'s vocals between the stereo channels. In some cases, Smith (or possibly Barrett himself) used such extraordinarily wide ADT in this way as to give the slightly disorientating impression of not so much double tracking but two quite separate voices on either channel wildly out of time with each other – the best example of this is perhaps on "[[Bike (song)|Bike]]". Similar effects were later used on some of Barrett's solo works, perhaps indicating his fondness for this unusual use of ADT. Pink Floyd themselves continued to use ADT on most, if not all, of their subsequent albums up until the 1980s, with one notable use being on "[[Alan's Psychedelic Breakfast]]", where a part of the drum track is treated with ADT.  
In the US, [[Simon and Garfunkel]] began to use ADT on stereo mixes of their songs to split vocal tracks between the channels, examples of which include "[[Mrs. Robinson]]" and "[[Cecilia (Simon & Garfunkel song)|Cecilia]]".

[[Gary Kellgren]], [[Jimi Hendrix]]'s engineer, used ADT extensively on all of Hendrix's albums. He frequently split vocal, guitar, and even drum parts between the stereo channels.

As the music industry's hunger for technological advances increased, new devices were created to make it easier and faster to achieve the same results.  Thus, the industry saw analogue delay devices created and brought to market that no longer needed tape machines to achieve the ADT effect.{{which|date=August 2023}}  They used electronic circuits instead. Much later on, these analogue delays were augmented by digital delay units. There has since been a thriving market among guitarists and other musicians for guitar pedals, or [[effects unit]]s, reproducing chorus and delay that owe their development to ADT. Nowadays, the ADT and similar effects are available as computer software plugins.