IK Multimedia ReSing Choir turns one vocal into an editable choir of up to five AI singers per section with chord-aware harmonies. $149.99 intro to 31 Dec 2026.
Plugin comparison
IK Multimedia ReSing Choir vs Klevgrand Altitude Harmony
Specs, price and the Dubspot Score, side by side — with our verdict on which effect to buy.
Independent score / workflow fit / buying signal
Contenders
The side-by-side
Klevgrand Altitude Harmony tunes vocals and stacks up to three in-key harmonies, with Clones, Droid, Vibrato and Tremolo effects. $29.99 intro from $49.99.
Technical matrix
Specs compared
| Signal | IK Multimedia ReSing Choir | Klevgrand Altitude Harmony |
|---|---|---|
| Price | $149.99 (intro, until 31 Dec 2026) | $29.99 intro (from $49.99) |
| Dubspot Score | — | — |
| Formats | Standalone, macOS, Windows | VST, VST3, AU, AAX, macOS, Windows |
| Type | Standalone AI ensemble vocal generator (64-bit) | Real-time vocal tuner and harmonizer |
| Singers | Up to 5 per section; up to 10 sections per project | — |
| Parts | Source, Unison, Harmony +1/+2/+3 and -1/-2/-3 | — |
| Editing | Chords Lane, Harmonize slider, piano roll, Cut tools, Vibrato, Transition | — |
| Humanization | Auto-character, Timing (5 positions), Variation, Detune, per-singer Pan, Reverb | — |
| Export | Section mixdown, dry processed stems, or both | — |
| macOS | Apple M1 or Intel Core i5, 8 GB RAM, macOS 13.7 or newer, 9 GB disk | — |
| Windows | Core i5 or equivalent, 8 GB RAM, Windows 10 (64-bit) or newer, 9 GB disk, ASIO sound card | — |
| Licensing | Perpetual, no subscription; internet for authorization | — |
| Harmony voices | — | Up to 3, above or below the lead, on scale steps 2, 4 and 6 |
| Scales | — | 15 presets plus custom scale |
| Effects | — | Clones, Droid, Vibrato, Tremolo (tempo-synced) |
| Latency modes | — | Quality, Low latency (zero latency) |
| Formats | — | AU, VST, VST3, AAX (64-bit) |
| Systems | — | macOS 10.13+ (Intel or Apple Silicon), Windows 10+ |
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