# Sounds

> 42 instrument engines (synths you play), 7 free (downloaded with no account or email), the rest £4.99 each or in the Everything plan.

Free synths: https://sournd.com/download/free/macos (macOS) or https://sournd.com/download/free/linux (Linux), one archive with every free engine and synth; an AI agent can use the MCP tool `get_free_download`. Every instrument is also in https://sournd.com/catalog.json (category `instrument`).

- [Braidel](https://sournd.com/sounds/braidel/index.md): A four-voice paraphonic keyboard voice: braided oscillators through one warm low-pass, with a dark, wobbling echo behind it.
- [Brazier](https://sournd.com/sounds/brazier/index.md): A modern six-voice analogue poly: saw and pulse per voice, a resonant low-pass after a clean high-pass, and a wide stereo chorus.
- [Bristle](https://sournd.com/sounds/bristle/index.md): A bright, buzzy two-voice synth with snappy percussive envelopes and a biting two-pole filter that screams when the resonance goes up.
- [Cantilla](https://sournd.com/sounds/cantilla/index.md): Sings vowels by frequency modulation: formants locked in place as the pitch glides, a two-axis vowel pad, throat, breath, vibrato and ensemble. Vowels only: no words, lyrics or likeness of any voice.
- [Cavitas](https://sournd.com/sounds/cavitas/index.md): A breathy, eerie pad voice: a vowel-like tone with air in it, closed down by a smooth low-pass, like an old sampler playing a choir.
- [Chitinel](https://sournd.com/sounds/chitinel/index.md): A powerful virtual analogue voice: saturation between the filter stages keeps the bass under high resonance, with a second band-pass filter in parallel.
- [Crankshaft](https://sournd.com/sounds/crankshaft/index.md): A punchy virtual analogue lead: a hard-synced oscillator swept by its own envelope, a bright resonant low-pass and a short glide.
- [Crystelle](https://sournd.com/sounds/crystelle/index.md): A glassy digital pad voice: a breathy, bell-like partial layer over a resonant digital low-pass, with chorus and a soft echo trail.
- [Duskfall](https://sournd.com/sounds/duskfall/index.md): A grand, expressive eight-voice poly: two detuned layers per voice, high-pass into low-pass, slow swelling filter and pressure that opens the tone as you lean in.
- [Fanfara](https://sournd.com/sounds/fanfara/index.md): A bold eight-voice brass poly: two wide-detuned saws per voice through an open, fizzy two-pole low-pass for stabs and big chords.
- [Fibrel](https://sournd.com/sounds/fibrel/index.md): A clean, modern hybrid poly: pristine digital oscillators into a warm analogue-style low-pass with drive, for bright pads and leads.
- [Forgewren](https://sournd.com/sounds/forgewren/index.md): A fat three-oscillator mono for bass and lead: punchy exponential envelopes, a warm four-pole low-pass that thins its lows as the resonance climbs, and a little drift.
- [Gridwork](https://sournd.com/sounds/gridwork/index.md): A semi-modular style mono: three oscillators, noise and a resonant four-pole low-pass for leads, basses and odd effects.
- [Herald](https://sournd.com/sounds/herald/index.md): A silky eight-voice poly: saw and pulse per voice, smooth envelopes and a warm four-pole low-pass that self-oscillates cleanly.
- [Hessian](https://sournd.com/sounds/hessian/index.md): A punchy hybrid voice: a short, clicky transient on every note over a grainy digital tone and a warm low-pass, for plucks and stabs.
- [Hobstone](https://sournd.com/sounds/hobstone/index.md): A warm five-voice analogue poly: two detuned oscillators per voice, a creamy four-pole low-pass and exponential envelopes for pads, brass and keys.
- [Howlmere](https://sournd.com/sounds/howlmere/index.md): A raw, snarling mono: a high-pass into a driven two-pole low-pass whose resonance howls and distorts as you open it.
- [Ingotry](https://sournd.com/sounds/ingotry/index.md): A solid two-oscillator mono: saw and square into a resonant four-pole low-pass with snappy envelopes, for tight basses and clean leads.
- [Inlay](https://sournd.com/sounds/inlay/index.md): A rich digital voice built from layered tones and a choice of digital filters, here a resonant low-pass after a notch, for strings, pads and evolving keys.
- [Knotwork](https://sournd.com/sounds/knotwork/index.md): A wild, unstable mono for drones and effects: wandering oscillators, noise and a squelchy low-pass that breaks into distortion before it sings.
- [Lullwick](https://sournd.com/sounds/lullwick/index.md): A soft-edged six-voice poly: a pulse-led oscillator, a smooth low-pass that tracks the keyboard and a slightly faster stereo chorus for keys and leads.
- [Nimbel](https://sournd.com/sounds/nimbel/index.md): A clean one-oscillator poly wrapped in a wide, shimmering stereo chorus: the chorus is the sound, for pads, chords and gentle keys.
- [Parada](https://sournd.com/sounds/parada/index.md): A lavish eight-voice poly: two detuned oscillators per voice, a liquid switchable low-pass and envelopes with a huge range, from plucks to slow swells.
- [Polisk](https://sournd.com/sounds/polisk/index.md): A polished, modern three-oscillator mono with two low-pass filters side by side for a wide, glossy lead that still growls when pushed.
- [Psalmery](https://sournd.com/sounds/psalmery/index.md): A fully polyphonic, organ-like voice: every key sounds, with a buzzy resonant band in parallel with a smooth master low-pass, for strings and choirs.
- [Quillwren](https://sournd.com/sounds/quillwren/index.md): A clean workstation-style keys voice: an additive tone with a non-resonant low-pass that only darkens, never whistles, so the motion comes from the tone itself.
- [Rillstorm](https://sournd.com/sounds/rillstorm/index.md): A heavy two-oscillator mono with a sub, saturation that keeps the bottom end under high resonance, and a second voice for two-note lines.
- [Russetine](https://sournd.com/sounds/russetine/index.md): A warm, friendly six-voice poly: one oscillator and a sub per voice, a musical four-pole low-pass and a lush ensemble chorus.
- [Sackcloth](https://sournd.com/sounds/sackcloth/index.md): A gritty hybrid voice: rough, aliased-sounding digital tones smoothed by a warm analogue-style low-pass, for characterful keys and basses.
- [Sawtide](https://sournd.com/sounds/sawtide/index.md): A huge stacked-saw voice: seven detuned saws spread around a centre saw, a resonant low-pass and stereo chorus, for anthemic leads and pads.
- [Scurrow](https://sournd.com/sounds/scurrow/index.md): A restless hybrid voice: a phase-modulated digital tone into a chirpy, unstable two-pole filter that gets vocal and aggressive but never quite sings on its own.
- [Sequina](https://sournd.com/sounds/sequina/index.md): A bright three-operator FM voice: a sharp, glassy attack that decays fast, for electric pianos, bells and slap basses.
- [Sinuate](https://sournd.com/sounds/sinuate/index.md): A crisp digital voice with no filter at all: the tone itself is bent from a pure sine towards a buzzing edge by its own envelope, for bright basses, keys and brass.
- [Sproutkin](https://sournd.com/sounds/sproutkin/index.md): A simple, bouncy one-oscillator mono with a sub: saw and pulse into a smooth four-pole low-pass, made for basslines and chirpy leads.
- [Squallo](https://sournd.com/sounds/squallo/index.md): A punchy six-voice poly with a moving pulse width, a sub and a compressed stereo chorus, for big rave stabs, organs and basses.
- [Squidgeon](https://sournd.com/sounds/squidgeon/index.md): A squelchy one-oscillator bass voice: an envelope-swept four-pole low-pass with gritty resonance, slides between notes and an accent that bites on hard hits.
- [Swarmora](https://sournd.com/sounds/swarmora/index.md): Coupled oscillators that pull into tune: a detuned swarm of sines per note that pull draws into one pitched tone and chaos breaks into rough motion.
- [Tangelle](https://sournd.com/sounds/tangelle/index.md): Six sine operators in a fully patchable feedback network that weaves between two topologies, held at the edge of chaos by a loop governor.
- [Vapora](https://sournd.com/sounds/vapora/index.md): A lively six-voice poly for stabs and plucks: saw and sub through a resonant low-pass, a free-running wobble and a warm stereo chorus.
- [Varnisha](https://sournd.com/sounds/varnisha/index.md): A bright, polished digital voice: stacked oscillators an octave apart into a clean resonant low-pass, for sparkling pads and keys.
- [Velluto](https://sournd.com/sounds/velluto/index.md): A velvety six-voice poly with a two-pole state-variable filter that keeps its bass at any resonance, shape-blending oscillators and stereo chorus.
- [Wanderwave](https://sournd.com/sounds/wanderwave/index.md): An evolving digital pad: tones that morph slowly under a tempo-locked stepping filter, with chorus and a dotted echo, for moving textures.