Ridge Sound – Fold EQ

A New Dimension of Equalization and Creative Sound Design

Ridge Sound Fold EQ is an innovative 20-band equalizer designed for music producers, mixing engineers, mastering professionals, composers, and sound designers who want to explore new possibilities beyond traditional frequency shaping.

Unlike conventional EQ plugins that primarily adjust frequency and gain, Fold EQ introduces a unique Fold control that expands how each frequency band interacts with the audio signal. Its combination of traditional equalization, time manipulation, frequency shifting, FFT processing, transient control, and advanced modulation creates a versatile environment for both precision mixing and experimental sound design.

From subtle tonal adjustments to evolving textures, unusual resonances, and complex spectral effects, Fold EQ transforms equalization into a broader creative process.

Whether you’re processing vocals, drums, guitars, bass, synthesizers, or cinematic sound effects, Fold EQ provides a distinctive approach to shaping the character and movement of your audio.

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Go Beyond Traditional EQ

Traditional equalizers generally focus on frequency, gain, and bandwidth. Fold EQ expands this familiar workflow by introducing an additional dimension through its signature Fold processing architecture.

Each band combines conventional equalization capabilities with Fold processing, allowing you to explore how frequency regions interact with timing, spectral content, and other aspects of the signal.

This approach makes Fold EQ useful for more than corrective EQ. It can also create unusual filtering behavior, resonant textures, frequency-shifted sounds, transient-focused effects, and evolving tonal transformations.

With 20 processing bands, multiple band types, and flexible signal routing, Fold EQ gives you extensive control over both conventional mixing tasks and creative audio manipulation.

Four Fold Modes for Creative Processing

The Fold control offers four distinct modes, each providing a different approach to transforming your audio.

Time Mode

Time mode introduces timing-based processing that can move audio relative to its normal position, opening up possibilities for unusual temporal and spatial effects. FIR and Smooth approaches provide additional options for shaping the processing behavior.

Use Time mode to experiment with:

• Creative vocal processing
• Rhythmic audio textures
• Drum and percussion effects
• Unusual guitar treatments
• Experimental transitions
• Moving and layered sound textures

Frequency Shift Mode

Frequency Shift mode moves beyond conventional pitch-preserving equalization by introducing frequency-shifting effects. This can produce metallic, inharmonic, robotic, and other unconventional sonic characteristics.

Potential applications include synthesizers, bass, percussion, vocals, sound effects, and cinematic textures.

FFT Mode

FFT mode introduces spectral processing into the Fold workflow, enabling unusual frequency-dependent transformations and spectral effects.

It is particularly useful when conventional equalization is not enough and you want to create more experimental tonal changes, spectral textures, or distinctive sound-design elements.

Transient Mode

Transient mode provides another way to shape the attack characteristics of individual frequency regions. This can help you experiment with the impact and definition of drums, percussion, plucked instruments, and other transient-rich sounds.

Use it to explore kick attacks, snare character, guitar pick definition, rhythmic synthesizers, and creative percussion processing.

20-Band EQ with 11 Band Types

Fold EQ combines conventional equalization with more experimental filter designs, giving you a flexible environment for shaping individual frequency regions.

Its architecture includes 20 EQ bands and 11 available band types, including distinctive options such as Ripple, Brownian, and Runaway Resonator.

These different band types provide additional ways to approach tonal shaping, resonant processing, and unconventional sound creation.

Use the more traditional EQ options for everyday frequency adjustments, then explore the experimental filters when you want to introduce unusual resonances, movement, or distinctive tonal character.

One plugin can serve as both a practical equalizer and a creative sound-design instrument.

Advanced Modulation for Evolving Sound

Fold EQ is not limited to static EQ curves. Its modulation system allows parameters to change over time, creating processing that responds dynamically rather than remaining fixed.

Modulation Features

• Five customizable LFOs
• Four mappable macros
• Three envelope followers
• Advanced modulation matrix
• Modulation routing for supported parameters

Use these tools to create rhythmic filter movement, evolving tonal changes, animated resonances, and dynamic effects that develop throughout a performance.

For electronic music producers and sound designers, this modulation architecture offers additional creative possibilities for transforming otherwise static sounds into more expressive and continuously changing elements.

Flexible Parallel and Serial Signal Flow

Fold EQ provides both parallel and serial processing options, allowing you to approach complex audio transformations in different ways.

Parallel processing can help combine the original signal with processed components, while serial processing allows stages to operate in sequence. In serial mode, the processing order can be rearranged through a drag-based workflow.

This flexibility is useful when building more complex EQ and sound-design chains within a single plugin.

It also allows Fold EQ to fit into different production approaches, from subtle tonal enhancement to more involved experimental processing.

Creative Vocal Processing

Fold EQ can be used for conventional vocal equalization as well as more unusual vocal effects.

Start by shaping the tonal balance with traditional EQ bands, then introduce Fold processing to explore spectral changes, timing-based effects, frequency shifting, or transient detail.

Potential applications include:

• Airy and textured vocal layers
• Experimental vocal effects
• Robotic and metallic vocal treatments
• Creative vocal transitions
• Atmospheric background vocals
• Distinctive vocal sound design

For producers working with modern pop, hip-hop, electronic music, or cinematic vocals, Fold EQ provides an alternative approach to creating distinctive vocal textures.

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Advanced Drum and Percussion Sound Design

Drums and percussion contain a wide range of transient and spectral information, making them excellent sources for creative processing.

Fold EQ allows you to combine conventional frequency shaping with transient-focused processing and experimental Fold modes.

Use it to explore:

• Kick attack and tonal definition
• Snare character and impact
• Metallic percussion textures
• Moving hi-hats and rhythmic effects
• Aggressive drum processing
• Experimental percussion layers
• Creative rhythmic sound design

Whether you’re refining a drum mix or transforming percussion into a new sound-design element, Fold EQ provides additional ways to manipulate the character of your source material.

Transform Bass and Synthesizers

Electronic instruments can benefit from processing that changes not only their tonal balance but also their movement and spectral character.

Fold EQ’s frequency-shifting, FFT, time-based, and modulation capabilities can turn familiar basses and synthesizers into more experimental sound-design elements.

Use it for:

• Bass sound design
• Evolving synthesizer textures
• Inharmonic and metallic tones
• Ambient soundscapes
• Glitch-inspired effects
• Experimental electronic music
• Cinematic transitions and sound effects

For composers and sound designers, these capabilities provide a flexible way to create unusual textures that stand apart from conventional synthesizer processing.

Precision Mixing Meets Experimental Processing

Despite its creative architecture, Fold EQ can also be incorporated into more conventional mixing workflows.

Use its traditional equalization functions for tonal balance, frequency cleanup, and shaping individual instruments. Introduce Fold processing only where additional movement, spectral character, or creative transformation is needed.

This combination makes the plugin relevant to mixing engineers seeking practical EQ tools and producers looking for experimental processing in the same environment.

The amount of processing can be tailored to the task, from restrained tonal adjustments to more pronounced sound-design effects.

Technical Specifications and Compatibility

Product: Ridge Sound Fold EQ

Category: Audio Effects / Equalizer / Creative Sound Design

EQ Architecture: 20 bands with 11 band types

Fold Modes: Time, Frequency Shift, FFT, and Transient

Modulation: Five customizable LFOs, four mappable macros, three envelope followers, and a modulation matrix

Signal Flow: Parallel and serial processing

Plugin Format: VST3

Platform: Windows, including Intel-based systems, according to the supplied product specifications

Additional Information: Factory presets and PDF manual are listed among the included resources. A full demo without a time limit is also described by the developer.

For the latest operating-system requirements, host compatibility, licensing details, and product updates, consult the official product page.

Key Features of Ridge Sound Fold EQ

• 20-band creative equalizer
• Unique Fold processing architecture
• Four Fold modes: Time, Frequency Shift, FFT, and Transient
• Eleven band types
• Experimental Ripple, Brownian, and Runaway Resonator filters
• Parallel and serial signal-flow options
• Five customizable LFOs
• Four mappable macros
• Three envelope followers
• Advanced modulation matrix
• Time-based and spectral processing capabilities
• Frequency-shifting effects
• Transient-focused sound shaping
• Conventional EQ and experimental sound design in one plugin
• VST3 support for Windows, according to the supplied specifications
• Factory presets and PDF manual

Who Should Use Fold EQ?

Music Producers: Shape familiar sounds in new ways and introduce creative movement into your productions.

Mixing Engineers: Combine conventional frequency shaping with specialized processing for distinctive tonal results.

Mastering Engineers: Explore creative EQ and spectral transformations when a project calls for effects beyond standard equalization.

Sound Designers: Build unusual resonances, experimental textures, transitions, and evolving audio effects.

Electronic Music Producers: Transform synthesizers, basses, drums, and vocals into more dynamic and unconventional sound-design elements.

Film and Game Composers: Develop distinctive textures and audio effects for cinematic atmospheres, transitions, and soundscapes.

Why Choose Ridge Sound Fold EQ?

Ridge Sound Fold EQ takes equalization beyond its traditional role by combining a 20-band architecture with Fold processing, multiple filter types, advanced modulation, and flexible signal routing.

Its four Fold modes allow you to explore timing-based manipulation, frequency shifting, spectral processing, and transient-focused effects within a single plugin. At the same time, conventional EQ functionality keeps it relevant to everyday mixing and tonal shaping.

Whether you’re refining the frequency balance of an instrument, adding movement to vocals, reshaping drum transients, or building experimental synthesizer textures, Fold EQ offers a distinctive combination of precision equalization and creative audio manipulation.

For producers, engineers, composers, and sound designers who want to explore new approaches to EQ, Fold EQ provides an unconventional and flexible addition to a modern audio plugin collection.

Visit the official Ridge Sound website for product information, documentation, and the latest compatibility details.

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