Building on the legacy of the H910 pitch shifter, the H949 was Eventide’s first de-glitched pitch-shifter. Produced from 1977 – 1984, it introduced MicroPitch which used a proprietary single-sideband modulation technique for precise control of small pitch shifts. The H949 also offered unique flange, reverse and randomized pitch effects.
Here’s how it was described when first introduced:
“a combination digital delay line, pitch changer, and all-around special effects unit. The TIME REVERSAL feature is entirely new. When used as a variable-speed tape recorder, the Harmonizer® is capable of shortening or lengthening a piece of program material to fit a given time slot without altering the pitch.”