Put your own sounds into your FM-1

Drop WAV, MP3, OGG or FLAC files here, choose a slot (MY 1 to MY 4), and send them to your FM-1 over USB. The page makes them what KAWA stores: mono, 22 kHz, 8 bits, up to 1.66 seconds. Nothing leaves your computer.

This page needs install/websamples.js next to it (it did not load). Open the page from the repository or the website, not on its own.

BEFORE YOU SEND

KAWA 0.2 or later must be running on the FM-1 (the tracker screen), plugged into this computer with a USB data cable, in Chrome or Edge on a computer.
KAWA must be stopped: press PLAY so nothing is playing, and leave the FM-1 alone until the transfer ends. The FM-1 is silent while a slot is being written.
A slot that is sent to is replaced. If the cable is pulled or anything goes wrong, that slot stays empty: never half written. Send it again.

1 Your FM-1

Not connected. You can prepare your sounds first and connect when you send.

The FM-1 is not found? Choose its MIDI ports

MIDI output (to the FM-1) MIDI input (from the FM-1)

The page looks for a port named FM-1, Felucca or KAWA. If your system names it otherwise, pick it here, then connect again.

2 Your sounds

Drop sound files here, or choose them WAV, MP3, OGG, FLAC (what your browser can play). Several at once. Each goes to a slot; the first free ones are taken in order. Choose files

3 Send

What happens to a sound, and how to use it

It is mixed to mono and brought to 22 050 Hz (or 11 025 Hz if you choose Longer: twice as long, duller). WAV files are read by this page, exactly as install/kawa_samples.py does; other formats are decoded by your browser.
The silence before the sound is removed, the sound is normalised to 95 %, cut to the slot (36 608 bytes: 1.66 s at 22 kHz, 3.3 s at 11 kHz) with a very short fade at the end, and stored as 8-bit mu-law, like KAWA's own breaks. The waveform and Play show exactly that result.
Name: up to 11 characters (A-Z, 0-9, space and _ - . ! + #). It is what the FM-1 shows.
On the FM-1: a track's SOUND page (EDIT), engine SAMPLE, SOURCE = MY 1 to MY 4.
The samples live in the FM-1's flash: they stay when it is switched off, and are not part of a project file.
Without a browser: python3 install/kawa_samples.py put 1 kick.wav does the same.