build / 2026 / daily-build + music-production Backspill stretches a generated impact across a tape-like waveform stage, with length, tone, and bloom cuts ready for 48 kHz WAV export.

build

Backspill: Pull a Transient Backward Into the Drop

A local reverse-transition resampler for bass producers who need a shaped pre-hit WAV without opening another plugin.

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Backspill is for bass producers building tension before a kick, snare, bass stab, or full-drop transient. Load a local hit or use the generated fixture, then pull it backward into a transition that lands exactly where the source began.

Three cuts shape the result. Length sets the lead-in, tone removes brittle high-frequency spray, and bloom controls how aggressively the reversed signal rises toward impact. Source and result audition natively in the browser. Export writes a mono 48 kHz, 16-bit PCM WAV ready to drag into Ableton Live.

The audio never leaves the machine. The committed validator checks the RIFF/WAVE container, PCM encoding, channel count, sample rate, bit depth, frame count, and byte length.