Altitude

The deal

$89.99 at Plugin Boutique (down from $149.99). Sale ends August 31, 2026.

What it is

Altitude is a real-time vocal performance station from Klevgrand that combines formant-aware pitch correction, three-voice harmonization, and voice modulation in a single plugin. It runs at zero latency on the pitch correction engine, making it useful for both live performance and studio production. The harmonization engine automatically adjusts to musical keys, avoiding dissonant intervals while adding lush vocal layers.

Who it's for

Producers and engineers who record, produce, or perform with vocals - whether they need subtle pitch correction, thick stacked harmonies, or creative MIDI-controlled vocal effects. It's especially well-suited to pop, R&B, and electronic producers who want a full vocal toolkit in one plugin.

Key features

• Formant-aware pitch correction with zero latency for transparent correction or hard-tuned effects
• Three-voice harmonizer automatically stays in key and avoids dissonant intervals, with MIDI-controllable scale support
• MIDI-playable voice module lets you perform and arrange vocals like a synthesizer
• Three independent modulators target up to eight parameters each for rhythmic vocal effects and textures