DVP Tools / Beat Lab

Boom Bap Sampler NYC

An MPC-style sampler and step sequencer that runs entirely in your browser. Load a kit or chop your own samples, lay them across 16 velocity-sensitive pads, build patterns with swing and ratchets, and export finished beats as WAV, stems, or MIDI. Straight from the boroughs — no install, no account.

Open the sampler Quick start Controls

Quick start

Make a beat in three moves

Hit POWER ON STUDIO first — browsers require one click before audio can start. Then:

Load sounds

Pick a free kit (CR-78, LinnDrum, R-8, Acoustic, Breakbeat) from the LOAD KIT menu in the Chop Shop, or drag your own audio onto a pad. Samples load across the 16 pads.

Chop & tune

Drop a loop in the Chop Shop and hit AUTO CHOP to slice it on transients (or EQUAL CHOP). Set start/end, then shape each pad's pitch, filters, drive, and envelope.

Sequence & export

Tap steps into the 16-step grid, add SWING, chain banks A–H into a song, then EXPORT WAV, stems, or MIDI — or save the whole project locally.

Controls

Everything on the board

Pads & performance

16 pads play with the keys 1 2 3 4 / Q W E R / A S D F / Z X C V or any MIDI controller (with MIDI Learn).

16 LEVELS spreads one pad across the grid in pitch.
NOTE REPEAT retriggers in time for rolls.
Per-pad volume, pan, pitch, drive, LP/HP filters, attack/release, reverse, mute groups, mute/solo.

Chop Shop

A full waveform editor: drag-to-set the chop region, scrub the preview line, and audition before committing.

AUTO CHOP (16) — transient-detected slices across pads.
EQUAL CHOP — 16 even slices.
LOAD KIT — drop in a free drum kit.

Step sequencer

16 steps × 8 pattern banks (A–H). Per-step velocity, probability, ratchets, and micro-timing in the step inspector.

◀ SHIFT / SHIFT ▶ rotate the whole pattern.
CHAIN plays banks in sequence as a song.
COUNT-IN gives you a bar before recording.

Master FX

The master bus shapes the whole kit:

REVERB & DELAY sends for space and bounce.
3-band EQ, VINYL warble + noise, 12-BIT crunch.
DJ FILTER — one-knob SP-404-style sweep (MIDI CC1 mappable).

Mixer

The MIXER button opens all 16 channels at once — level faders plus mute/solo per pad, so you can balance the kit without hopping between pads.

Save & export

Your work, your files:

SAVE — named projects + autosave to the local vault.
EXPORT WAV — render the pattern/chain to audio.
EXPORT STEMS — one WAV per pad for mixing in a DAW.
EXPORT MIDI — the pattern as a .mid file.
BOUNCE TO PAD — resample the mix back onto a pad.

Pro moves

Get the boom-bap feel

Swing it

Push SWING to 56–62% for that head-nod shuffle. Layer in per-step micro-timing to drag or rush individual hits like a live drummer.

Chop a soul loop

Drop a sample, AUTO CHOP, then replay the slices in a new order on the pads and record the performance with OVERDUB.

Vinyl & grit

Flip on VINYL and a touch of 12-BIT, then roll the DJ FILTER left for that dusty, lo-fi, sampled-from-wax character.

Take it to a DAW

Build the loop here, then EXPORT STEMS + EXPORT MIDI and finish the arrangement in your DAW of choice.

Local & private

Everything runs in your browser — samples, projects, and renders never leave your machine. Sample-heavy beats can outgrow browser storage, so use EXPORT PROJECT FILE to keep big sessions safe.