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Tag - pitch shifting

ValhallaUberMod: The MOD Parameters

Chorus, Pitch Shifting, theory, Valhalla DSP, ValhallaÜberMod

ValhallaÜberMod allows the user to dial in different chorus, ensemble, and glitch shifting modulations through the use of the MOD controls. By clicking on the MOD button at the upper right of the GUI, the 5 modulation parameters…

ValhallaShimmer Tips and Tricks: Shimmering

Pitch Shifting, Plugins, reverb, theory, Tips and Tricks, Valhalla DSP, ValhallaShimmer

ValhallaShimmer was designed to get a variety of big reverb sounds, with the option of adding pitch shifted feedback to the decay. The “Shimmer” in the title refers to the classic shimmer effect, as used by U2, Brian…

ValhallaShimmer: a bit of history

Pitch Shifting, reverb, theory, Valhalla DSP, ValhallaShimmer

ValhallaShimmer has its roots in the earliest digital reverberation algorithms, as described by Mannfred Schroeder in 1961. Schroeder, in his earliest AES paper on the subject, described a “colorless” reverberator, based upon cascaded diffusor (allpass) delays. At the…

Introducing ValhallaShimmer

Pitch Shifting, Plugins, reverb, Upcoming work, Valhalla DSP, ValhallaShimmer

I am happy to announce my first commercial plugin, ValhallaShimmer: ValhallaShimmer is an algorithmic reverberation plugin. It is designed to produce BIG sounds, from concert halls, to the Taj Mahal, to the halls of Valhalla. There are several…

Another clip from my upcoming plugin

Pitch Shifting, reverb, Upcoming work, Valhalla DSP

The following clip shows some of the different modes of my upcoming plugin, ValhallaShimmer: A brief summary of what is going on: The clip begins with harp recorded in a fairly echo free environment At 0:24, the mix…

Feedback, anti-feedback, and complexity in time-varying systems

frequency shifter, Pitch Shifting, theory, ValhallaFreqEcho

“For my birthday I got a humidifier and a dehumidifier. I put them in the same room and let them fight it out.” – Stephen Wright When I was researching the Eventide H910 Harmonizer, I found it curious…

Shimmer: Modulation, auto-correlation, and decorrelation

DSP Philosophy, Pitch Shifting, reverb, theory

In my previous post, I discussed the Eno/Lanois shimmer sound, and how it is based around a pitch shifter and a digital reverb placed in a global feedback loop. It is worth exploring what is going on in…

Eno/Lanois Shimmer Sound: How it is made

Pitch Shifting, theory, Tips and Tricks

The basic foundation of the Brian Eno / Daniel Lanois shimmer sound is fairly simple: Create a feedback loop, incorporating a pitch shifter set to +1 octave, and a reverb with a fairly long decay time. By controlling…

Eno/Lanois Shimmer effect: Early examples

Good Music, Pitch Shifting, theory

The collaboration of U2 with Brian Eno and David Lanois was the first introduction to a wide listening audience of the reverb with swelling octave overtones that has come to be referred to as “shimmer.” However, the effect…

Pitch Shifting: The H949, and “de-glitching”

Pitch Shifting, theory

In 1977, Eventide released the H949 Harmonizer: The H949 built upon the harmonizing features of the H910, and added more memory (for longer delays), randomized delay, reversed delays, flanging, and a micropitch mode for small pitch shift intervals.…