Resynthesis

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Overview

The core of Evoke is its resynthesis processing. This process captures key features from the input signal, lets you manipulate those elements with the built-in controls, and then uses them to reconstruct a new version of the sound.

The Resynth View provides access to this resynthesis process, including creative character modes, detailed vocal modeling, auto-tuning, harmonization, and spectral shaping. Designed to blur the line between real and imaginary, it preserves the expressive nuances that make each voice unique and unlocks new possibilities for lead, backing, and textural vocal performances.

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What is Resynthesis?

Resynthesis is the process of analyzing a sound to capture its core elements, then reconstructing it with a synthesizer using that information. While the final result may sound similar to the input, it is an entirely new signal.

By breaking sounds down into the building blocks of pitch, spectral envelope, and timbre, each of these elements can be manipulated independently before being used to resynthesize the input.

This allows you to transform a sound in ways that aren’t possible with traditional processing, replacing or reshaping certain aspects of the signal while preserving others.

In Evoke, the input’s pitch is automatically detected and retuned, similar to traditional auto-tuning effects, unlocking everything from natural enhancement to hard-tuning and complex harmonies.

The spectral envelope is captured using a vocal modeling process that analyzes the voice’s frequency content and overall dynamics in detail. This allows Evoke to recreate the expressive nuances of the original performance while giving you the flexibility to reshape the tone in creative new ways.

Finally, Evoke combines all of this with a specially tuned synthesis engine that offers a wide range of timbres, allowing you to quickly explore character profiles ranging from natural choral effects to futuristic voices and textured sounds like liquid or static.

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1. Resynth Response

At the center of the Resynth View is the Resynth Response graphic, which displays the vocal-modeling filter used to resynthesize the input signal. Adjustments to controls such as Resolution and Formant are reflected here in real time.

You can also create custom Spectrum Filter shapes by clicking directly on the response graphic or by using the Spectrum Control Bar, which appears on hover. After creating a filter shape, adjust or modulate it with the Spectrum Controls.

2. Character Modes

The Character Modes dropdown provides options for how Evoke resynthesizes the input signal. Think of these modes as full synthesizer presets that inject different timbres into the resynthesis process. Choose from diverse vocal characters, from natural unison to synthetic and textural effects.

3. Resynthesis Controls

The Resynthesis Controls provide access to core resynthesis settings and can significantly shape the output’s character and tone.

On the left are the Character Controls, which adjust the timbre defined by the current Character Mode. Behavior varies by mode. Shape and Color act as mode-specific macro controls.

On the right are the Vocal Modeling Controls, which adjust the spectral envelope captured from the input signal. These controls include formant shifting as well as adjusting the resolution of the spectral envelope.

4. Harmonization Voices

Evoke’s Harmonizer Voices let you layer up to four resynthesized voices, each with its own tuning and mix controls. Use them to create lush choruses, octave stacks, and even robotic tuning effects.

5. Retuning Controls

The Retuning Controls provide essential auto-tuning parameters such as Retune Speed and Amount, along with a tuning display that shows retuning in real time.

6. Spectrum Controls

The Spectrum Controls provide immediate control over the Spectrum Filter, which you can customize by clicking the Resynth Response. Use them to quickly change the overall tone or create movement across the entire spectrum.

7. Freeze Controls

The Freeze Controls provide a way to hold the input signal’s current spectral envelope, so individual vowels or other sounds can be frozen in time.

Freezing can be automated by modulating the Freeze button or by enabling Retrigger Mode, which automatically freezes at intervals synced to BPM or set by a millisecond value.