    Analog delay Echoplex EP-2 Digital delay   systems function by sampling the input signal through an analog-to-digital converter, after which the signal is passed through a digital signal processor that records it into a storage buffer, and then plays back the stored audio based on parameters set by the user.
<meaning-changed>     Analog delay Echoplex EP-2 Digital delay   systems function by sampling the input signal through an analog-to-digital converter, after which the signal is passed through a digital signal processor that records it into a storage buffer, and then plays back the stored audio based on parameters set by the user.
 Dedicated machines for creating tape loops were introduced, such as the Ace Tone EC-1 Echo Chamber. Tape echo machines contain loops of tape that pass over a record head and then a playback head. With the Roland RE-201, introduced in 1973, Japanese engineer Ikutaro Kakehashi refined the tape delay to make it more reliable and robust, with reduced tape wear and noise, wow, and flutter, additional controls, and additional tape heads for more delays. By adjusting the controls and tape speed, musicians could create pitch-shifting and oscillated effects. The RE-201 was a success, used by acts including Brian Setzer, Bob Marley, Portishead and Radiohead. Analog delay Echoplex EP-2 Digital delay systems function by sampling the input signal through an analog-to-digital converter, after which the signal is passed through a digital signal processor that records it into a storage buffer, and then plays back the stored audio based on parameters set by the user.