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The two obvious options here are Fine and Wide, which give you 40 Hz and 400 Hz of shifting potential, respectively. At the top left of these you'll find the range selector, which lets you choose from four different frequency shifting modes. The four smaller knobs/selectors surrounding it tailor the behavior of the frequency shift in different ways. The eye is immediately drawn to the large frequency shifter knob, which is distinguished from the other controls not only by its size but also by its retro styling. Taking a look at the Echobode VST UI, you'll see a very similar design to the RE version. A frequency shifter, on the other hand, adds or subtracts a set frequency amount to all of the overtones of a signal passing through it, and the result can vary from subtle phasing at low shift amounts to metallic or inharmonic effects at higher amounts. One important distinction to make here is that a frequency shifter is different than a true pitch shifter, which alters frequency content by a set ratio in order to maintain the harmonic content of the music. The name Echobode is a rather clever reference to these two main components: "echo" for the delay and "bode" (pronounced boh-dee) for the frequency shifter, which was originally invented by Harald Bode. If you're not familiar with Echobode, the easiest way to understand it is to see it as a delay with a frequency shifter inserted within its feedback loop. Having enjoyed a few years of RE exclusivity, this unique effect was reintroduced to a broader audience this past April, when a brand new version was released in VST/AU format. One of the best examples of an RE original is Echobode, a frequency shifting delay originally released by Sonic Charge. On the other side of the fence were plug-ins created from scratch to take advantage of the new platform. The first included the obvious ports of existing VST/AU plug-ins like KORG's PolySix, migrated into compatibility with some minor changes. When the Propellerhead group introduced the Rack Extensions (RE) plug-in standard for Reason in 2012, the industry's initial offerings fell into two categories.