Apple’s AirPods Max beta firmware supports the L3C Bluetooth codec for better sound, which could also be a key feature of the second-generation AirPods Pro.
Leak ShrimpApplePro predicted that AirPods Pro 2 would support L3C ahead of WWDC 2022. In a post on Twitter today, the leaker notes that codec support was discovered in the AirPods Max beta.
Ahead of WWDC22, I posted an exclusive leak in my Telegram group that the 2nd Gen AirPods Pro will support the L3C lossless codec. And guess what, in the beta firmware for AirPods Max can activate LC3! Many thanks to my member @marajobsession for discovering it!
After enabling this the quality seems to improve, at least compared to my member
The sound quality of the 2nd Pro will improve more, I think it comes from the new SiP when the driver is always the same size (no massive redesign like AirPods 2 to 3 to have a big change of drivers)
Some of the technical properties of LC3 include:
● It is a block-based transformation audio codec
● It provides a wide range of usable bit rates
● It supports 10ms and 7.5ms frame interval
● It supports the following bit depths: 16, 24 and 32 bits per audio sample
● It supports unlimited audio channels
● It supports the following sample rates: 8 kHz, 16 kHz, 24 kHz, 32 kHz, 44.1 kHz and 48 kHz
The Bluetooth SIG states “The new LC3 provides higher quality at the same data rates as SBC, or even better quality at a much lower data rate. Providing high quality even at low data rates, LC3 will bring considerable flexibility to developers, allowing them to make better design trade-offs between key product attributes, such as audio quality and power consumption.”