Credits & acknowledgements

Kiwipulse stands on the work of others. Thank you.

Bundled drum library

Kiwipulse bundles curated, modified subsets of four free sample libraries.

Salamander Drumkit

The Modern Acoustic and 70s Rock kits — and the acoustic samples in the pool they draw from — are a curated, modified subset of the Salamander Drumkit (the "Black Pearl" kit) by Alexander Holm, used under the Creative Commons Attribution 3.0 licence (CC-BY 3.0).

Harder hits play a different, brighter recording — that natural velocity-to-timbre is the kit's, not a synthetic effect.

Salamander Drumkit by Alexander Holm — licensed CC-BY 3.0 — modified for Kiwipulse.

MuldjordKit

The recorded hits and bodies labelled MJ come from MuldjordKit by Lars Muldjord (https://www.muldjord.com), a rock/metal kit originally made for DrumGizmo, in the stereo edition assembled by Roberto for FreePats. Used under Creative Commons Attribution 4.0 (CC-BY 4.0).

MuldjordKit by Lars Muldjord — licensed CC-BY 4.0 — modified for Kiwipulse.

Timpani and World Percussion

The timpani and the hand percussion (congas, bongos, darbuka, cajón, claves, castanets, tambourine, maracas, shaker, hand clap) come from the FreePats Timpani and World Percussion banks, released into the public domain under CC0 1.0.

The world percussion was recorded by Xavimart (Javier), Gonzalo and Roberto from Xavimart's own collection of instruments; the claves and congas, and the whole timpani bank, are drawn from the Versilian Community Sample Library by Versilian Studios LLC. CC0 asks nothing of us — they are credited because the recordings took real effort.

What Kiwipulse changed

A curated selection of hits and velocity layers; silence trimmed; most samples folded to mono; converted to 16-bit; long timpani and cymbal tails shortened with a fade.

Each of these recordings is also split into a HIT and a BODY — the attack, and the ring it decays into — cut where the recording's high-frequency contact noise stops decaying. The two halves add back up to the original exactly, so a hit played with its own body sounds like the untouched recording. Splitting exists so you can play a hit with someone else's body: a rock kick's beater on a timpani's ring.

Framework

Kiwipulse's interface and audio plumbing are built with JUCE.