DEEALOG by Livdeo

video displays
for museums

with synchronized multilingual
audio broadcasting on smartphones

by Livdeo

In-sync inclusive storytelling solution for video displays and digital signage

Real-time audio / video synchronization

For each on-site broadcast screen, nearby users choose the audio track to listen to on their own smartphone.

Multilingual audio broadcasting

Several languages are available for each broadcast screen. The visitor chooses the language he wants to listen to.

Smart video players

DEEALOG HD/4K video players display video playlists on-site video screens and communicate in real time with the smartphones nearby.

Scheduling of video playlists

Each player has its own video playlist.

The video players and playlists are managed on the Deealog BackOffice (cloud)

No internet connection

No internet connection is required for users' smartphones

No application to download

Access to the DEEALOG by Livdeo in-sync app instantly, without prior download from a "store".

Real-time audio / video synchronization

Real-time audio / video synchronization

from broadcast screens to nearby smartphones

Video information screens become points of interest for visitors.

Visitors are notified on their own smartphones about the broadcasting nearby screens.

At any time the visitor can choose to listen to the soundtrack associated with a screen, in his own language.

Real-time audio / video synchronization
Multilingual audio broadcasting

Multilingual audio broadcasting

The visitor listens to the audio track in his own language

Each video displayed in a broadcast screen has several audio tracks, multilingual or with levels of specific speeches for different audiences (adults, children, impaired people, etc)

After selecting a nearby video display on his smartphone, the visitor then selects the audio track to listen to, in his own language.

Synchronized audio is played directly on the visitor's smartphone.

When a new video track plays, the corresponding audio tracks are automatically broadcasted to nearby smartphones.

Multilingual audio broadcasting

The DEEALOG mobile app

as PWA or native app

The DEEALOG mobile app

DEEALOG Progressive web app (PWA)

The use of the PWA DEEALOG mobile app requires no prior downloading from a "App Store".

Visitors connect to the DEEALOG network and access the application instantly from their smartphone's web browser.

As a result, the broadcast screens near the visitor appear on their smartphones.

DEEALOG app native: iOS / Android

The use of the native mobile app DEEALOG requires a pre-download from Apple / Android stores.

The app uses the 3G / 4G network to connect to DEEALOG video players.

The broadcast screens near the visitor appear automatically in the DEEALOG application.

Mobile apps accessible to all visitors

The two versions, PWA and native, app provides a guarantee of optimal adoption by visitors.

Foreign visitors not having a 3G / 4G connection access the app as a PWA from the DEEALOG network.

Centralized administration

Centralized administration

of the Visitor App and broadcast screens

  • Visit app creation
  • Video playlists creation
  • Playlist allocation to on-site video players
  • Automatic video transcoding
  • Video support with multi-track audio
  • Audio tracks might be loaded seperatly for each language
  • Screens indoor positionning on multi-level maps

Centralized administration

DEEALOG by Livdeo Video Players

standalone, interconnected, 4K / HD, with centralized administration


Scenario writing and playlist administration.

Automatic sync of playlists from the back office.

Automatic play on start.

and statistics

Video players are monitored in real time.

Visitor usage statistics are available in the BackOffice.

Compatibility with
AndroidTV / AppleTV

Android TV or Apple TV compatible "connected" broadcast screens do not require any additional video players.

The video player is integrated into the screen as an Android or AppleTV app.

HD / 4K broadcasting

Video players guarantee a HD or 4K video playback.

Standalone video players

Video players are autonomous in their operation.

They can also be controlled remotely from the BackOffice or from a mobile application DEEALOG Monit on-site

Technical specifications

  • Ethernet and Wifi network connectivity
  • Bluetooth connectivity
  • HDMI video output
  • Storage space from 16 GB