This article brings you the latest sale information on “Altitude,” the vocal performance station from Klevgrand, a developer known for its distinctive plugins.
We also cover a quick overview and how to activate the plugin after purchase, so be sure to use it as a reference.
This article will be updated as new sales begin.
1. Altitude Latest Sale Information
Altitude is currently part of the following sale.
Plugin Boutique Exclusive Coupon Sale: Until August 31, 2026
At Plugin Boutique, entering the coupon code “ALTITUDE26” on the cart screen gets you 50% OFF. This offer runs until August 31, 2026.
2. What is Klevgrand “Altitude”?
Altitude is a “vocal performance station” for singers, producers, and live performers. It delivers pitch correction, smart 3-voice harmony, voice modules playable via MIDI, and advanced modulation — all in real time with ultra-low latency.
- Pitch correction: a high-precision, high-quality engine that stands alongside the industry’s leading tools
- Harmony: smart 3 voices that automatically follow the key
- Play: turn your voice into an instrument you can play with MIDI
- Movement: modulation ranging from subtle fluctuations to bold sound design
1. High-Quality Pitch Correction with Formant Support
At the core of Altitude is a solid pitch correction engine. Formant-aware processing achieves fast, natural correction with ultra-low latency, keeping the sound musical even at extreme settings.
With two doubler modes and a widener, you can make leads thicker, or shift formants boldly for classic hard-tune effects — everything from transparent finishing to characterful sounds.
2. Smart 3-Voice Harmony That Follows the Key
Up to three harmony voices sing in the correct key along with the lead, automatically avoiding unwanted dissonance so chords always move musically. Each voice is processed individually for a more natural, lifelike sound.
Each voice features vibrato, a humanizer, and automatic formant correction (all optional). With doubler, widener, and individual mix levels, it blends quickly into any mix.
3. The “Play Module” — Perform Your Voice Like an Instrument
With the Play module, you can perform your own voice in real time with a MIDI keyboard, or arrange harmonies and melodies using MIDI data in your DAW. Control the mood with attack/release and the tone with width, doubler, and formant shift, with auto-correction support as well.
4. Free and Flexible Modulation
Three independent modulators (each with up to 8 targets) bring rhythmic movement and evolving textures to pitch, formant, harmony intervals, pan, volume, and more.
Each modulator runs at a fixed rate or syncs to your DAW tempo. Choose sine, sawtooth, or square waveforms, or draw your own shapes with the step editor of up to 16 steps. From gentle morphing to extreme sci-fi-style textures, it’s all up to you.
5. Natural, Breathing Vibrato
The vibrato module is designed to feel “alive.” The rate and depth vary from voice to voice, so voices fluctuate independently like real singers. With fade-in, vibrato rises naturally after a note is held.
6. Smart Scale That Stays Musical
Notes that work in a melody don’t always work the same way in harmony. Altitude’s scale system lets you toggle the notes used by each harmony voice individually, so harmonies always stay musical regardless of how the melody moves.
The scale can be controlled via MIDI, making it ideal for live performances that span songs in different keys, or for single-note punch-in correction. In addition to a rich set of preset scales, you can create your own scales with microtuning.
Where You Can Use It
- Hard-tune effect: classic auto-tune / pitch-correction sounds in an instant
- Live harmony: real-time 3 voices that follow a single input
- Thicker leads: enhance vocals with doubler, widener, and formant control
- Voice as an instrument: perform and arrange harmonies from a MIDI keyboard
- Transparent finishing: punch-in correction on specific notes only, without touching anything else
- Rhythmic textures: from subtle movement to experimental modulation
3. Installation & Activation
Authorizing Klevgrand products is completed in the following 4 steps.
- Enter your redeem number (the number you received from the retailer, etc.) at https://klevgrand.com/redeem
- Create or sign up for a Klevgrand account
- Log in to Klevgrand and download/install the product from My Products
- Launch it and enter the serial number (listed in My Products)
4. Where to Buy Altitude
You can purchase Altitude from the following stores.