Stream Pro (Available for Pre-Order)

Description

Any audio. Tiny pieces. Infinite textures.

Stream Pro is a complete granular synthesis platform: evolving textures, playable polyphonic instruments, and immersive 3D spatial audio — all in one plugin. Granular synthesis breaks audio into grains of 1–100 ms and reassembles them: time-stretch without changing pitch, pitch-shift without changing time, and turn any recording into something entirely new.

Formerly XStream. Same plugin, new name. Your .xstream presets, settings, and licenses carry over unchanged.

Pre-Order Direct from ILIO  |  Read the Manual

VST3 · AU · Standalone — macOS · Windows · Linux

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Two Modes, Infinite Possibilities

Single Mode — Turn Any Sound into Evolving Textures

• Record, Overdub, and Replace capture modes
• Independent pitch and time control
• Bipolar speed & direction (−2x to +2x) with freeze
• One-tap buffer undo — recording over a take is no longer fatal
• Session persistence: your buffer and settings restore automatically

Multi Mode — Play Your Samples Like an Instrument

• Full polyphonic MIDI tracking — up to 8 voices
• Per-voice ADSR envelopes with a draggable visual editor
• Colored voice markers show every playhead at a glance
• Genuinely stochastic per-grain jitter
• Efficient Stroma engine keeps polyphony light on CPU

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3D Spatial Granular Synthesis

Powered by Steam Audio’s binaural HRTF processing, the Spatializer places each voice in true 3D space for headphone listening — or scatters grains across the stereo field in classic ping-pong style.

• Binaural HRTF processing — drag voice nodes on the XY pad; in Multi mode, every note occupies its own position in the soundstage.
• Ping-pong grain distribution — successive grains alternate hard-left and hard-right, with a pulse rate that tracks grain size.
• BOIDS flocking — voice nodes cluster, burst apart, and regather in ever-changing spatial patterns, no manual animation required.
• Motion & DAW automation — record and loop per-voice movement paths, and automate spatial position and the binaural-to-ping-pong blend from your DAW.

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Movement Without Automation Lanes

Modulation Matrix

• Four LFOs, seven shapes — from sine to sample-&-hold
• Free-run 0.01–20 Hz, or tempo-synced from 4 bars to 1/16T
• Sixteen routing slots; stack LFOs or fan one out to many destinations
• Offset design — your knob stays home; Range mode sweeps a parameter between two exact points

Texturizer Effects

• Soft saturation for warmth and grit
• Per-voice Moog-style lowpass/bandpass filter
• Stereo delay with time, feedback, and mix
• Swap whether space or effects comes first in the chain

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Expressive from the First Note

• Fully MPE-capable — profiles for Seaboard, GeoShred, and Sensel controllers, with adjustable pitch-bend range, pressure, and velocity sensitivity.
• Everything is mappable — the MIDI editor auto-discovers every parameter; right-click any control for instant MIDI Learn. Sustain pedal and mod wheel ship pre-mapped to granular defaults.
• Presets that travel — a single .xstream file captures everything: parameters, envelopes, spatial state, MIDI maps — with documented workflows for sharing sounds between machines.

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Free Companion Apps

Run them full-screen on a second display and connect over virtual MIDI.

• Parameter Space — an octagonal control surface where each voice is a draggable polygon: global, per-voice, and hybrid modes, synced with the plugin in real time.
• Spectral Space — your audio as a cloud of segments clustered by timbre. Hover to audition, click to jump, drag to scrub — and record evolving trajectories through it.
• Leap Motion Controller — hands-in-the-air control of Stream Pro parameters.

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By the Numbers

• Grain size: 1–500 ms
• Voices: 8
• LFOs: 4 · Modulation routings: 16
• Playback speed & direction: ±2x with freeze
• Grain windows: Triangle, Gaussian, Noise

System Requirements

• macOS 10.13 or later (Intel & Apple Silicon)
• Windows 10 or later (64-bit)
• Linux x64 (Ubuntu 20.04+)
• 4 GB RAM minimum, 8 GB recommended
• VST3, AU, or Standalone host

Support

• Manual: Complete user manual with video tutorials
• Sales and general product support: support@ilio.com
• Everything else: connect@deltasoundlabs.com
• Bugs: Report an issue on GitHub

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Hear what your audio is hiding.

Load a sample. Pull it apart. Put it somewhere new.

Pre-Order Direct from ILIO