JellyFish

A browser-based singing/karaoke practice tool. It records your voice through the microphone (Web Audio API), lets you pick a song to sing along with (lyrics shown + backing track played), and optionally saves a WAV of your performance.

Copyright notice: this project was built for personal educational use. The song/media files (*.mp3, *.license.txt) and lyrics included in this repo are not re-distributable and may violate copyright. Replace them with your own licensed/royalty-free tracks before sharing or deploying.

Features

• Mic recorder — record, pause/resume, and stop; download your take as .wav right from the browser.
• Song selection — pick one of the songs configured in index.php to load lyrics + backing audio via getsongs.php.
• Effects/clips — optional background tracks via getclips.php (add your own royalty-free files).
• User-land license tracking — each track can carry a N-license.txt license file to track usage rights.

Run it

JellyFish needs a small HTTP server so the PHP endpoints + audio files resolve on your browser page.

# PHP built-in server (simplest)
php -S localhost:8000
# open http://localhost:8000

Or deploy the folder to any Apache/nginx + PHP host.

Browsers only allow microphone capture on localhost or HTTPS — use the local server above or add an HTTPS cert for remote access.

How it works

File	Purpose
index.php	UI: song + effect selectors, recorder controls
app.js	Recorder logic (record/pause/stop, WAV download)
recorder.js	Recorder library (makes WAV blobs)
lib.js	AJAX helpers for song/effect requests
getsongs.php	Returns lyrics + <audio> for the chosen song
getclips.php	Returns an effect/background track
upload.php	(optional) saves your recording to uploads/
main.js / sound_meter.js	Optional input-level meter (unused by default)

Adding your own songs

1. Copy a royalty-free audio file into the repo (e.g. 7.mp3).
2. Add a matching license note in 7-license.txt (or delete the file if you own it).
3. Add an <option value="7">…</option> in index.php and a case 7 block in getsongs.php with the lyrics.

Privacy

Recording happens entirely in your browser (Web Audio). Nothing is uploaded unless you re-enable the upload.php flow in app.js — by default recordings are only downloadable to your own device.

License

Code: MIT. Media and lyrics are NOT licensed here — see the notice at the top of this README.