Velvet Vocoder vs Additive Synth

VV17 turns your iPhone and iPad into a real-time vocal studio — auto-tune, harmony, and vocoder in one app. Sing or speak into your device and VV17 corrects your pitch to any key and scale as you go. Turn on harmony and it stacks up to four in-key voices under your lead, TC-Helicon style. Switch to Vocode mode and play a MIDI keyboard to drive the tuning by hand — your lead locks to the nearest held note while the others become live harmonies. FEATURES • Real-time auto-tune with adjustable correction amount and speed, from natural to hard-tuned • Automatic diatonic harmonies — stacked in-key thirds, 1 to 4 voices • Infinite mode swaps the harmony stack for a shimmering harmonic series • Vocode mode: control the tuner live from held MIDI notes • Classic vocoder / talkbox synth layer driven by your voice • Choose your key and scale, or explore just-intonation temperaments • Vocal FX: spread, humanize, sibilance, and response controls • Presets to get you started, including lush choir and modern hard-tune rigs • Works standalone or as an Audio Unit (AUv3) plugin inside GarageBand, AUM, Cubasis, and other hosts All processing happens on your device. No account, no sign-up, no data collection.

WHAT IT IS Additive is a synthesizer that builds each sound up from harmonics instead of using a filter to cut it down. You can set every harmonic individually, then shape how it moves over time: some can pulse together while others drift, shimmer, or move in the opposite direction. This gives you control over every part of the spectrum and a large range of sounds, from shimmering pads and bell-like plucks to deep resonant basses. Start with a preset, generate a sound with Random, or build your own from the ground up. WHAT IT DOES * Harmonic bank: set up to 50 harmonic bands by drawing them, picking a shape, or generating a random spectrum. Every band is yours to change. * Custom movement for every harmonic: give each band its own modulation depth, phase, and rate, so the movement happens inside the sound. * Cutoff and resonance, uncoupled: Bands and Slope set the cutoff, while Bulk is a resonant peak you can place anywhere in the spectrum, independent of where cutoff sits. * Morph: draw two spectra and move between them by hand, with an LFO, or with an envelope. A note can begin as one sound and become another. * Modulation: four LFOs with nine shapes, including ones you can draw yourself, plus tempo sync and four envelopes. * Voicing: Character, Detune, Chorus, Drive, and Stereo take the harmonics from pure sine waves to analog-leaning, distorted, or otherworldly. * Play the spectrum: assign brightness, movement, Morph, or anything else to the XY pad and the Z slider, and explore the movement inside the spectrum yourself. * Presets and Random: more than 100 presets cover basses, pads, textures, plucks, leads, bells, organs, keys, brass, and drones. Random generates a whole new sound, and you can adjust every detail to make it your own. * FX: delay, reverb, drive, compression, and EQ are built in, so your sounds leave Additive finished. * AUv3 and standalone: load Additive as an instrument in your host, or play it directly in the app with the on-screen keyboard and arp. * Four themes: Hardware, Cobalt, Dark, and Light. REQUIREMENTS * iPad with iPadOS 15 or later * An AUv3 host for the plugin, for example AUM (the standalone app needs none)