How to use Chppr

Quick start

1. Add audio. Drop a file, record audio, capture browser audio, or load the demo sample.
2. Choose a source region. In Beat, open Sound → Source, then find the drum break, vocal phrase, melody loop, or texture you want to test.
3. Press Slice. The selected region becomes chops on the active track, then Chppr moves to Sound → Slices for editing.
4. Open Play. Check whether the pads feel like an instrument before spending more time on the idea.
5. Open Sequence or FX. Build a Pattern, shape the track with effects, then choose an export, download a project file, or publish a Beat Card.

What sounds work well in Chppr?

Chppr is easiest to learn with sounds that have clear starts: drum breaks, melody loops, vocal phrases, one-shots, and texture recordings. Long songs can work, but a short loop or phrase is faster to judge.

Find sounds to chop

Screen map

The easiest way to understand Chppr is to separate the app into three ideas: sources, tracks, and the Footer workflow.

Tracks and sources

This is the mental model that prevents most first-use confusion.

Source

The original audio you add to Chppr. It can be an uploaded file, a recording, captured browser audio, or the demo sample.

Track

A working layer. Each track stores its own source selection, sliced region, pads, pattern, pitch, and playback settings.

Track A-D

Four layers for sketching a beat. You can keep one track simple, then use another track for a different source or a different chop idea.

Sources view

The source icon opens a list of loaded sources. It is useful when you want to add, preview, remove, or check which tracks use a source.

Sound, Play, and Sequence

These three areas are one workflow, not separate features. Slice first, play the result, then arrange a pattern if the chops are working.

How to slice

1. Pick the active track, open Beat, then choose Sound → Source.
2. Choose a source from the source selector.
3. Select the useful region on the waveform.
4. Press Slice to assign the region to the active track. Chppr then opens Sound → Slices.
5. After slicing, use Sound → Slices to edit boundaries, normalize, or reslice that track.

How to play pads

After slicing, open Beat in the Footer and choose Play. Each pad triggers a slice from the active track. This is where you check whether the sample feels good under your fingers before sequencing it.

How to sequence

Open Beat in the Footer, then choose Sequence after a track has slices. Add steps to trigger pads over time. Use this to sketch a Pattern, then choose an available export when you are ready to keep it. Open FX when you want to shape the track with effects.

Using multiple tracks

Tracks do not have to mean finished song stems. They are lightweight scratch layers. You can use them for different roles while you test an idea.

• Track A: drum break or main groove.
• Track B: vocal chop or short hook.
• Track C: melody loop, texture, or field recording.
• Track D: alternate chop, extra percussion, or a quick comparison idea.

If a track has no slices, Play and Sequence will be empty. Open Beat, choose Sound → Source, and create slices for that active track. Use Sound → Slices after that to edit them.

Save, export, and share

Chppr has several outputs because different moments need different files.

Save project

Downloads a local .chppr project file so you can reopen the session later. This does not require an account.

Export slices

Downloads the chopped pad sounds as WAV files. Use this when you want to bring one-shots into Ableton, FL Studio, Logic, or another DAW.

Export patterns

Downloads sequenced loops as WAV files. Use this when the pattern is the part you want to keep.

Loop mix / Arrangement / Press Recording

These cards are always visible and become available when ready: Loop mix exports the current Pattern cycle, Arrangement exports a completed BeatArc arrangement, and Press Recording exports the selected Press performance.

Beat Card

Publishes a browser-playable card by packaging the project and saving it to cloud storage. Publishing can start an anonymous session and is subject to anonymous publishing limits. Only publish audio you have the right to distribute.

The Export tab always shows five cards: Loop mix, Arrangement, Press Recording, Export patterns, and Export slices. Cards become available when their prerequisites exist. An unavailable card itself shows only its label and description; select it to open a dialog with the reason and next action: build a Pattern, create an arrangement, record in Press, or slice a Sample. Local audio is processed in your browser while you work. Audio is packaged and uploaded only when you publish a Beat Card. Remote and YouTube sources cannot currently be packaged; if publication fails, try an uploaded file or the demo sample.

Open Chppr and export an idea

BeatArc, Key Sync, and Sources

After the basic slice-to-pad flow makes sense, these views help you shape or manage the idea.

Mobile guide

Chppr works best when you treat mobile as a quick sketch surface. Add audio, use the Footer to open Beat, then use Sound → Source for a small region and Slice it. Use Sound → Slices to edit it, Play to test pads, Sequence for a Pattern, or FX to shape the track.

For a focused phone and tablet overview, read the mobile sample chopper for phone and tablet page.

• Use shorter regions first. Long files are harder to manage on a small screen.
• If you cannot see pads or the sequencer, make sure the active track has slices.
• Use Save project before leaving if you want to keep editing later.
• If you need detailed arrangement, export WAV and finish the idea in a DAW.

Troubleshooting