SCRATCH STREAM

SCRATCHSTREAM

Scratch live radio like a record.

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FEATURES

01

Scratch Anything

Live radio streams, MP3s from your library, or bundled samples. If it makes sound, you can scratch it.

02

Touch to Scratch

On-screen vinyl disc with circular gesture control. Drag to scratch, tap center to cue. Works on any phone.

03

Griffin PowerMate

USB hardware knob with LED ring feedback. Spin to scratch, click to cue, hold to cut. The premium experience.

04

Cue Points

Hear something amazing on the radio? Click to stamp a cue point. Click again to snap back and scratch it to death.

05

Freeze Loop

Mark in, mark out. Freeze a segment and scratch it endlessly while the live stream keeps buffering ahead.

06

Speed Detents

Half-speed for slowed+reverb vibes. Double-speed for chipmunk chaos. Tap to lock, scratch stays relative.

DEMO

VIDEO COMING SOON

STATIONS

Built-in college radio. Tap a station and scratch.

KPSU
91.7 Portland
KEXP
90.3 Seattle
KAOS
89.3 Olympia

UNDER THE HOOD

C++ DSP engine with lock-free ring buffers. Variable-rate playback via Oboe (Android) and Core Audio (iOS). Velocity-based scratch physics with sliding window estimation. Sub-5ms audio latency.

C++ / NDK OBOE LOCK-FREE SPSC EXOPLAYER JETPACK COMPOSE USB HID