ValhallaFreqEcho MkI is a free frequency shifter, combined with an analog-style echo, plug-in for Windows and Mac OS X.
The MkI release adds a GUI as well as the ability to sync the delay time to the tempo. The sonic results encompass barberpole flanging and phasing, dub echoes that constantly rise or fall in pitch, the classic detuning of frequency shifting, and a variety of psychedelic, evolving self-oscillation patterns that will spin around and through your skull.
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