″Nothing ever happens.Nothing happens at all.The needle returns to the start of the song,and we all sing along like before.″
— ″NOTHING EVER HAPPENS,″ DEL AMITRI, WAKING HOURS (A&M RECORDS, 1989)
The delay line is the single most important signal processor used for manipulating the time axis of an audio signal. In concept, it could not be simpler: delay all signals fed to the device. Audio goes in. It waits the designated amount of time. Audio comes out. Simple on the surface, this process becomes the building block for a vast range of effects, and is a required processor in all recording studio environments.
This chapter begins with some theory, summarizing delay technologies frequently used in recording studios and describing the basic ...