Described as a “vocal performance station”, Klevgrand’s latest plug-in combines pitch-correction with harmony generation and a MIDI-playable voice module, and includes an array of onboard modulation functions. The engine that powers Altitude is said to deliver pitch-correction that rivals the most respected names in the industry, but has been designed to do far more than just simple corrective work, and offers a powerful set of tools that open the doors to some interesting new sounds.
Heading up the set of tools is a pitch-correction module that promises to deliver high-quality results with formant-aware processing. Alongside it’s corrective tools, the module also includes a Doubler setting with two distinct virtual double-tracking modes, a stereo-widening tool and a format-shifter that’s capable of generating some obvious, hard-hitting effects.
A Harmonies section then makes it possible to generate up to three harmony parts to complement the incoming melody. The section ensures that results remain locked in key, and offers per-part Vibrato, Humanize and Auto-formant Correction parameters — the section is also equipped with doubler and stereo-width controls. Next, a Play section allows vocals to be played like an instrument, either live using a MIDI controller or via a DAW track.
Alongside its main features, Altitude is also equipped with a comprehensive set of modulation tools. A dedicated panel offers access to three modulators that can each target up to eight different parameters, with a set of typical waveshapes joined by a 16-step sequencer-style modulation track.
Key Features
- High-quality Pitch Correction: Formant-aware processing.
- Three-voice Harmoniser: Smart scale options for musically-aware harmony voicings.
- Play Module: Make your voice playable via MIDI input.
- Low-latency Mode: Well suited to live performance.
- Dual Doubler Modes: Plus stereo widener for each module.
- Three Independent Modulators: Each control up to eight target parameters.
- Flexible LFO Shapes: Sine, saw, square or custom step sequencer up to 16 steps — DAW-sync’d or free-running.
- Natural Vibrato Module: With fade-in, rate and depth control.
- MIDI Scale Mode: Ideal for live key changes or punch-in pitch-correction.
- In-depth Features: Microtuning, multi-out support, detection range options.
- Large Preset Collection: From regular to otherworldly
Compatibility
Altitude is supported on PCs running Windows 10 or later, and Macs running macOS 10.13 and above. VST, VST3, AU and AAX plug-in versions are available.
Pricing & Availability
Altitude is available now, and is currently (2 June 2026) being offered at an introductory price of $89.99, reduced from its full cost of $149.99. It is also available via Klevgrand’s rent-to-own plan, where it costs $9.99 per month for 15 months.
