Listeners, QR codes, and remote control

How to send selected translation languages to phones on the local network or through an Internet link.

Choose network destinations

In «Translation», connect each required language to «Local network», «Internet», or both. These are independent outputs: removing one does not stop the other. Each running language uses one paid translation session regardless of the number of listeners or network destinations.

Where to find QR codes

In the «Outputs» column on the diagram you will find the «Local network» and «Internet» rows. Each available link has two buttons: the QR icon opens «Full screen», and the chain icon copies it via «Copy link». Hover over a button to see its tooltip. The link and QR belong to that specific network output.

In the fullscreen view, press «Save PNG» to save the image for a presentation or printing. Escape returns to the diagram. Showing the QR, saving the PNG, and copying the link neither start nor stop translation. A saved image does not extend the link's validity: after it is revoked or replaced, save a new QR.

Local network

Connect the operator's computer and listener phones to the same trusted network. In the «Local network» row, press the QR icon or copy the link for the audience. The listener opens it in a browser, chooses a language connected to that output, and starts playback. If there are no QR and link buttons, check the local network availability and the message under the output. Guest Wi-Fi isolation may block connections; ask the venue network administrator instead of disabling the firewall.

Listen · Volume

Translation text

Original · Translation · Back to live translation

Internet listeners

A connected bblx account and the language's connection to «Internet» prepare the room before translation starts. Once the room is created, separate QR and link buttons appear in that row. If they are not there yet, check the account connection, the network destination, and the message under the output. Internet listeners do not need to share a Wi-Fi network with the operator.

Until the selected language is live, the listener page shows a waiting state. Stopping translation keeps the room and QR for the next start. Removing the last Internet connection on the diagram closes the room and revokes the link; adding it again creates a new QR. Quitting the program or switching accounts also closes the room.

Internet audio uses the supported browser transport automatically. If UDP/WebTransport is unavailable, the listener may use the supported WebSocket path. Lock-screen playback support depends on the phone and the mode offered by the listener page.

What the counters mean

Under each network output, the number of connections is shown. The Internet counter tracks connections to the audio stream, not merely open pages; different tabs may count separately. When data is unavailable, a connection state is shown. The counter does not confirm that a person actually hears audio: test each language on a real phone before the event.

Remote control

The «Remote control» block sits at the bottom of the diagram, separate from the audience outputs. Its QR and link pair a phone or tablet browser on the same trusted local network and provide control over translation and audio routing. This is neither a listener link nor an account connection. The remote opens the same diagram; the audience QR codes are at the network outputs.

The gear icon next to the remote opens «Paired devices». Via «Generate a new pairing link», replace the link for new connections: previously paired devices keep their access. To disconnect them, choose «Revoke access for all devices» and confirm. These operations do not replace the listener audio link.

Security and operation

The listener link grants audio-only access, with no control or account access. Share it with the audience, and the remote QR and link only with trusted organizers. Do not publish active remote QR codes in presentations or screenshots. Before doors open, test every required language and phone; keep the operator's wired monitoring independent of listener phones.