Comparison
| BT Classic Audio | BT Low Energy Audio | |
|---|---|---|
| Introduced with | BT v1.0 | BT v5.2 |
| Profiles | – A2DP (Advanced Auto Distribution Profile) – AVRCP (Audio/Video Remote Control Profile) |
– BAP (Basic Audio Profile) – MCP (Media Control Profile) |
| Codecs | SBC, AAC | LC3 |
| Multiple streams | No | Yes |
| Broadcast support | No | Yes |
- Currently the audio streaming happens via BT Classic.
- The BT versions are backward compatible.
- BT Classic and BT Low Energy (introduced with BT v4.0) are incompatible (have different profiles).
AVRCP
| Version | Features |
|---|---|
| 1.0 | – Playback control (e.g. play, pause, stop, next, prev) |
| 1.3 | – Playback status (e.g. playing, paused, stopped, position) – Track metadata (e.g. title, artists, album, length) |
| 1.4 | – Media browsing (over multiple media players) |
| 1.5 | – Specification corrections for the version 1.4 |
| 1.6 | – Additional track metadata (coverart) |
The feature support isn’t guaranteed with the AVRCP version only. The smartphone manufacturer and the used media player can restrict them on top.