How Does An Auracast Transmitter Work With Your TV Setup?
An Auracast transmitter integrates with TVs to broadcast audio wirelessly via Bluetooth LE Audio technology, enabling multiple listeners to connect compatible headphones simultaneously. The transmitter pairs with the TV's audio output (HDMI, optical, or analog), encodes the sound into encrypted Auracast streams, and broadcasts it within a localized range. Users scan for available Auracast channels through their headphones' app or built-in controls, select the TV's broadcast, and receive synchronized audio without disturbing others.
Audikast 4 Bluetooth LE Audio Auracast Transmitter for TV
How does Auracast differ from traditional Bluetooth audio sharing?
Auracast uses Bluetooth LE Audio's broadcast mode for one-to-many transmission, unlike classic Bluetooth's device-paired limitations. While traditional methods require manual pairing per listener, Auracast allows unlimited participants within range to join via open or password-protected channels. Pro Tip: Avantree's transmitters maintain 20ms audio sync latency, crucial for lip-syncing in TV/movie playback.
Traditional Bluetooth TV transmitters create isolated connections – one transmitter per headphone. With Auracast, a single Avantree Audikast 4 transmitter can service an entire living room's headphones simultaneously. This works through synchronized isochronous channels that maintain timing across devices, preventing echo effects common in legacy systems. For example, a sports bar using Auracast could broadcast eight different games to separate channels, each with 48kHz/24-bit quality. Warning: Older TVs may need HDMI-ARC extractors for Auracast compatibility.
| Feature | Auracast | Traditional Bluetooth |
|---|---|---|
| Max Listeners | Unlimited | 1-2 devices |
| Setup Time | Instant join | Manual pairing |
| Audio Latency | <30ms | 100-300ms |
What hardware is needed for TV Auracast setup?
A complete system requires an Auracast transmitter (like Avantree's DG60 Aura) connected to the TV and compatible receivers. The transmitter converts audio into LE Audio packets, while receivers decode them. Pro Tip: Ensure your transmitter supports LC3 codec for optimal quality/range balance.
Modern setups use HDMI-ARC equipped transmitters that auto-sync with TV operations. The Avantree DG60 Aura connects via USB-C, drawing power while transmitting 15-hour continuous audio up to 100 feet. Its adaptive frequency hopping prevents interference from Wi-Fi 6 networks – critical in dense urban environments. For older TVs without digital outputs, models like the Audikast 4 include optical/analog inputs with automatic signal detection.
| Component | Function | Avantree Example |
|---|---|---|
| Transmitter | Encodes/broadcasts audio | DG60 Aura |
| Receiver | Decodes audio streams | Aura Focus Earbuds |
| Control App | Channel management | Avantree HT App |
How secure are Auracast TV broadcasts?
Auracast offers military-grade encryption via AES-128 when configured privately. Public channels remain open, while password-protected ones require SHA-2 authenticated access. Avantree's systems include automatic channel rotation to prevent eavesdropping – a feature particularly valuable for confidential business presentations through TV systems.
In home environments, the transmitter's NFC pairing initiates encrypted sessions where only approved devices can join. Corporate implementations add RADIUS server integration for user authentication logging. For example, a hospital using Avantree's healthcare-grade transmitters could restrict patient room audio to assigned staff headphones while maintaining HIPAA compliance.
Avantree Expert Insight
FAQs
Yes – transmitters with analog/Optical inputs like Audikast 4 convert any audio source. For modern TVs, HDMI-ARC provides the cleanest signal path.
Do all listeners need the same headphones?No, any LE Audio-compatible device works. Avantree's system mixes LC3 and legacy codecs for cross-device compatibility.
How many channels can one transmitter handle?Up to 32 simultaneous streams at 48kHz. Avantree transmitters auto-manage bandwidth allocation based on connected devices.