Two ways to hear your samples
Choose NIBBI for the original sound or S950 for a vintage sampling flavor. Both playback engines are available in TAPE and TEMPO, so you can choose the sound and the workflow separately.
Play it your way
MELO spreads one sample across the keyboard. HITKIT puts different one-shots under your fingers for drums and sound collages.
Find the sweet spot
Trim the start and end, change speed and direction, and shape attack and release. Make a short hit or let a texture unfold.
Give it atmosphere
Add delay and reverb, push saturation and tape warble, or sweep the filter to place the sound in your track.
Choose the texture
Set the internal sample rate from 7.5 to 48 kHz. Lower rates darken the sound; higher rates keep more top-end detail. New settings apply on the next hit.
Shape it while it plays
Turn the S950 filter down to soften the top end, even on a held note. Its 0–99 control runs from dark to open, with no adjustable resonance.
Compare without committing
Switch between NIBBI and S950 to hear the difference. Your source audio stays intact, and the output level is matched automatically.
In TAPE, click the effects knob to reach S950 filter. Turn to adjust cutoff; hold Shift and turn to change sample rate. In TEMPO, these controls live on the Pitch knob’s S950 filter page.
Inside the S950
S950 playback is not a filter preset. We modelled the sampler’s converters, its MF6 switched-capacitor filters and its BA6110 amplifier from the service-manual parts and the manufacturers’ datasheets and checked each against independent circuit simulation. Point at any part below to see what it does.
The sample rate is 2.5 times the bandwidth you choose, 7.5 kHz to 48 kHz. An MF6 switched-capacitor filter guards the converter, with its corner set by the same timers, then a pair of hold capacitors feed a comparator and a 12-bit successive-approximation converter whose steps are 2.4 mV. Each result is stored as a 16-bit sample word.
Swipe the circuit to see all of it.
The diagrams are our own simplified redraws, not the original drawings. Every figure is a nominal component model from datasheet and schematic values, checked against independent mathematics and SPICE; no individual sampler was measured, and the converters’ noise, the filters’ clock feedthrough and the amplifier’s overload are deliberately not invented.
Two instruments in one
TAPE lets a performance grow in layers. TEMPO turns notes and slices into interlocking patterns. Choose a mode below to explore its controls. Both work with NIBBI or S950 playback.
Capture an input with the sample button, or drop in an audio file. Shift opens sound banks, saving, resampling, and alternate knob controls. Turn a recording into something you can immediately play.
Change sample speed and direction, then set its start and end points. The Start and End knobs also access Attack and Release: keep a hit short and percussive, or soften it into a sustained texture.
Cycle the effects knob through delay/reverb, saturation, and filtering. Shift adds delay time, tape warble, or filter resonance. With S950 selected, the filter page controls S950 cutoff and sample rate instead.
Record the first pass to set a loop, then use Record/Dub to layer more playing. The wheel changes playback speed and direction; with playback paused, it scrubs through the recording. Play/Pause controls the loop independently of the keys.
Volume sets what you hear; the Input page sets recording gain. Shift adjusts final compression. Monitoring and routing options let you record the incoming sound, send it through effects, or resample NIBBI’s own output.
MELO plays one sample at different pitches across the two-octave keyboard. HITKIT puts separate samples on the lower keys. Choose a melodic sound or drum bank with Shift, then play with the screen, computer keys, or MIDI.
Slow the tape and its pitch falls with it. Speed it up for a brighter, tighter phrase, or reverse its direction. Overdub at a new speed, then return the wheel to hear the layers take on different shapes.
Put effects before the looper to record their sound into a layer. Put them after the looper to process the loop as it plays. Resample the result into a new playable sound and start another idea from there.
Try this / a moving ambient loop
Sample a chord. Add a soft attack and some Space. Record a short phrase, slow the tape, then overdub a few higher notes. Return to the original speed and listen to how the layers fit together.
Where NIBBI comes from
NIBBI began with code shared by CHOMPI Club and Chase Bliss. Their instrument—and the decision to open its firmware—made this independent adaptation possible.
The original CHOMPI hardware was created by CHOMPI Club, which is owned by Chase Bliss.
Temecula DSP is not affiliated with or endorsed by CHOMPI Club or Chase Bliss. NIBBI is our own independent product, developed from modified open-source CHOMPI firmware.
Photo credit: CHOMPI Club.
Chelsea and Tobias’s interest in experimental music grew into community and education projects, then into CHOMPI: a tactile sampler built around exploring sound. The first instruments shipped in December 2023. Read their history →
CHOMPI launches on Kickstarter.
The campaign began on March 28, 2023. A total of 2,289 backers pledged $1,240,290 against a $30,000 goal, helping bring the instrument to life. The original campaign →
CHOMPI Club joins Chase Bliss.
Chelsea and Tobias joined the team, bringing the instrument and its community into a shared home. The announcement →
TEMPO opens another direction.
The original TAPE approach gained a rhythmic counterpart: a firmware built around patterns. The firmware story →
The source is handed to the community.
As production ended, the team released the firmware and hardware files so others could study, modify, and build on them. The open-source release →
What Temecula DSP did
We took the open-source CHOMPI firmware and modified it to run as NIBBI: a desktop plugin, standalone app, and browser instrument. Its TAPE and TEMPO foundations come from that project. We adapted the controls for a screen, added DAW integration and MIDI mapping, and added the S950 playback option.
The CHOMPI GitHub repository contains the original TAPE 2.0, TEMPO 1.0, and WAVE 1.0 sources alongside hardware files. The CHOMPI name, logo, and artwork are excluded from its open-source license.
The Story of CHOMPI · by Chase Bliss
Meet the people behind the original hardware. This film tells CHOMPI’s story; it is not a NIBBI demo or endorsement. Watch on YouTube ↗
Good to know
Start in your browser, then take NIBBI into your music-making setup.
Yes. Download NIBBI for macOS or Windows, or play it in your browser. Both NIBBI and S950 playback are included.
NIBBI and S950 choose the sound of sample playback. TAPE and TEMPO choose how you work: freeform tape looping or chromatic and sliced patterns. You can use either playback engine in either workspace.
Your source audio stays intact. S950 prepares its playback sound in the background. You can switch back to NIBBI to compare; sample-rate changes take effect on the next hit, while filter changes respond during playback.
Yes. Import audio files or record from an input, then play with MIDI, computer keys, or the on-screen keyboard. MIDI Learn lets you assign knobs and buttons and save controller mappings.
NIBBI includes VST3, AU, and AAX plugin formats, plus a standalone app. DAW sessions save sample edits, imported and recorded audio, and your tape loop with the project. The user guide covers input routing for recording in your host.
Start with a factory sound or bring your own. NIBBI is free—pick a mode and see where it takes you.
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