Auracast™ is a groundbreaking Bluetooth feature built on LE Audio (Low Energy Audio). It enables one device to broadcast audio to multiple receivers simultaneously, revolutionizing how we experience sound in public and social settings.

How Auracast Works

• Broadcaster: Sends the audio stream (e.g., phone, TV, speaker).
• Assistant: Helps users discover available streams—similar to scanning for Wi-Fi.
• Receiver: Plays the audio (e.g., headphones, speakers).

Users can join a stream manually or via QR code or link. Auracast supports both public and encrypted private broadcasts, with latency often under 40 milliseconds thanks to the LC3 codec.

Where Auracast Shines

• Public Spaces: Hear announcements in airports or stadiums through your headphones.
• Group Listening: Sync audio with friends while maintaining individual volume and device preferences.
• Accessibility: Offers clearer sound for people with hearing impairments in museums, lecture halls, and more.
• Home Entertainment: Connect multiple speakers for immersive movie nights or parties.
• Fitness Centers: Tune into specific workout instructions or music streams without background noise.

Device Compatibility

Devices must support Bluetooth 5.2 or later and the Public Broadcast Profile (PBP). Not all Bluetooth 5.2 devices support Auracast yet.

Soundcore’s Rave 3S is currently the only speaker in their lineup with Auracast support. PartyCast speakers are not compatible.

Auracast Roles

• Transmitters: Smartphones, TVs, sound systems.
• Assistants: Apps or built-in features that help users find and join streams.
• Receivers: Headphones, earbuds, speakers, hearing aids.

Auracast in Action: Soundcore Rave 3S

The Rave 3S is a 200W Bluetooth party speaker with built-in Auracast. Link multiple units with a single tap for synchronized sound. Two speakers offer stereo output; three or more switch to unified mono for large spaces.

FAQs

• How is Auracast different from Bluetooth? Traditional Bluetooth pairs one-to-one. Auracast broadcasts one-to-many, ideal for public and group listening.
• How do I connect to Auracast? Use an assistant app or Bluetooth settings to scan and join available streams.
• How many devices can connect? In theory, unlimited—if they’re within range and compatible.
• What’s the range? Up to 100 meters in open spaces; typically 20–30 meters indoors.
• Auracast vs. PartyCast? Auracast is a Bluetooth SIG standard with broader compatibility and broadcast-based pairing. PartyCast is Soundcore’s proprietary system with manual pairing.