diapason

How it works

What is diapason?

A shared radio: one sound on every phone and speaker in the room, all on the same beat.

Listen

Enter the room's 6-character code (or scan the DJ's QR): sound starts on the Join tap. Keep the screen on.

Private room

A private room doesn't show on the landing; only people with the code (or the password if you set one) can join.

Frequent questions

Yes, that is the whole point. Plug each phone into a speaker, Bluetooth or wired, and diapason keeps them all in sync. A handful of small speakers fills the room as one big system, with no echo between them.

Safari needs a gesture: tap Listen again. Keep the screen on, the sync follows.

About an audio stream's worth: comparable to web radio. Wi-Fi recommended for hours-long sessions.

diapason waits a heartbeat so every phone and speaker lands on the exact same instant. That tiny delay is what keeps them together instead of echoing.

A private room is never listed or suggested. With a password, joining requires it; without, only the code opens it.

Pick “diapason” in Spotify's device list (Connect). Any other service: broadcast a link or your device's audio.

Legal

diapason is a shared radio: the DJ's sound plays on every phone in the room. This page says who publishes it, what it processes, and who answers for what plays.

Notice

diapason is published by a private individual, on a non-professional basis. Under French law (LCEN, art. 6 III 2), the editor's identity is held by the host and is not published here.

Hosting: a virtual private server; the host's name and address are given on request at the address below.

Contact: contact@diapason.fm

Privacy

No account, no cookie, no tracker, no analytics. Your language, theme and nickname stay in your browser's storage, on your device.

The server sees what any web server sees: your IP address and browser, in technical logs kept only as long as needed to run and secure the service. It relays the sound and the room's state; it records nothing you hear or say.

In a room, your nickname, chat messages and votes are visible to the people in that room and travel between their devices. The sync measurements your device posts carry the room code and timing numbers, nothing that identifies you.

The landing shows a flag for your country: your browser asks get.geojs.io, a third party, from your IP; the server never sees it. A DJ can choose to show their station's city, at about one kilometre of precision, never finer.

A bug report you send carries the last diagnostic numbers, the local log, the version, the room code and your browser, with passwords and tokens blanked before it leaves your device. It is kept 30 days, then deleted.

When a DJ broadcasts a link, the music comes from that service (YouTube, SoundCloud, Spotify…) under its own terms.

To ask what is held about you, or to have it deleted, write to the contact address.

Terms

diapason is free and provided as is, without warranty: it can stop, change or go away at any time.

The DJ answers for what plays in their room: they must hold the rights to broadcast it to their audience, and respect the terms of the service it comes from. diapason relays the sound and keeps no copy.

A room used for something unlawful or abusive can be closed without notice.

French law applies.