Credits & licenses

SlapDrum stands on the work of these people and projects. Thank you.

Live sound kit

The Live kit uses recordings from DRSKit 2.1 by the DrumGizmo project: a kit by Jes Eiler of DRSDrums, recorded and prepared by Deva and Lars Muldjord. Licensed under Creative Commons Attribution 4.0 International.

Changes: selected kick, snare, closed hi-hat and tom hits; mixed the 13 microphones to mono with polarity alignment; trimmed, faded out, resampled to 48 kHz and normalized.

Motion sensor code

Native port of the Apple Silicon SPU sensor path from these MIT-licensed projects:

• olvvier/apple-silicon-accelerometerIOKit HID reading, Q16 XYZ decoding, Butterworth filter. MIT, © 2026 olvvier.
• jaskirat1616/mactap-appNative reports, tap detection and typing guard. MIT, © 2026 Jaskirat Singh.
• taigrr/spankThreshold, cooldown and audio dynamics reference. MIT, © 2026 Tai Groot; © 2026 olvvier.
• Galileo01/slap-your-laptopReport format checks, warm-up, impulse vs. vibration. MIT, © 2026 Hugh Madden.

The Studio, 808 and Lo-fi kits are synthesized by SlapDrum and contain no third-party samples. Full license texts ship inside the app.