How to turn one WAV recording into a playable multisample instrument

The file has to be cut into one-note pieces, each piece tuned to the right key and looped, then mapped across the keyboard. The hard part is doing it accurately for every note. Xampler takes the single WAV, finds the gaps between notes, splits them, detects each note's pitch, places a loop, and assigns it to the correct key automatically — then exports a ready instrument.

Either works. One file per note is the classic way, but a single recording with short silences between notes is fine too — that's often faster to record. What matters is a clear gap between notes so they can be split. Xampler handles both: drop a folder of per-note WAVs, or one multi-note WAV, and it maps them the same way.

By detecting the pitch of each sample from the audio itself — the actual frequency — not from the file name. Once it knows the pitch, it knows the root key, and it tiles the samples across the keyboard so each plays in its range. This is why you don't have to name your files in a special way (a common sticking point with other converters that read the note from the filename).

You don't need every key. Sampling every third or fourth note and letting the sampler pitch-shift between them is usually enough for a convincing instrument — fewer for simple sounds, more for ones that change a lot across their range. The gaps get filled by pitch-shifting the nearest sample. Xampler maps whatever you give it and stretches each sample across to the next.

No — the silences are actually what lets it split the notes apart. As long as each note is separated by a quiet gap, the splitter can find the boundaries. Xampler detects the note onsets and trims to each note, anchoring the start at the attack so you don't lose the beginning of the sound.

Yes — it runs in the browser, so the operating system doesn't matter and there's nothing to install. The processing happens on your own machine (the audio isn't uploaded anywhere), so it works the same on Windows, Mac or Chromebook. That's the main practical difference from desktop auto-samplers, which are Windows/Mac installs.

The splitter needs a clear quiet gap to separate notes. If two notes run into each other with no silence, they may be treated as one. The fix is to leave a short gap when recording, or to split that section manually. Xampler anchors each detected note at its onset, so as long as there's a gap it keeps them apart.

Yes. Auto-mapping gives you a working instrument, but you can fine-tune in the editor — move loop points, change a note's key, set the start. The automatic pass handles the tedious bulk; you keep control over the details. Then export when it sounds right.

Nothing, from the tool's point of view — a folder of separate note WAVs and one multi-note recording both become the same multisample. The single-WAV path just saves you exporting each note as its own file first. Xampler accepts both and produces the same SFZ / SF2 / KMP instrument.