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Oppo’s new audio chipset offers 12Mbps, 24-bit/192 kHz Bluetooth lossless quality

By Liu Hongzuo - on 14 Dec 2022, 6:00pm

Oppo’s new audio chipset offers 12Mbps, 24-bit/192 kHz Bluetooth lossless quality

Oppo introduces MariSilicon Y at Inno Day 2022.

Following the technical success of developing the MariSilicon X NPU back in 2021, Oppo has now taken its R&D chops to its first love, audio. Specifically, wireless and lossless Bluetooth audio.

At Oppo’s Inno Day 2022, the Chinese tech brand unveiled the new MariSilicon Y, an audio system-on-chip (SoC) specifically built for providing wireless, lossless audio via Bluetooth to mobile devices and personal audio products.

Oppo's artist rendition of the MariSilicon Y audio SoC.

The MariSilicon Y Bluetooth Audio SoC is built on the N6RF semiconductor process, supporting a data rate of up to 12Mbps and a dedicated NPU (neural processing unit) capable of 590GOPS (giga-operations per second), on top of a self-developed Pro Bluetooth Pack for Bluetooth audio transmission.

All that translates to 24-bit/192kHz lossless audio transmitted via Bluetooth, but that’s also only possible with Oppo’s proprietary Ultra Resolution Lossless Codec (URLC). According to Oppo, the bitrate contains 6.5x of sound information when compared to conventional CDs, and URLC’s 12Mbps data rate exceeds that of LDAC, LHDC, AAC, and AptX (although all these high-fidelity codecs are also supported on MariSilicon Y for better compatibility).

Oppo's comparison chart of MariSilicon Y's playback capabilities next to conventional Bluetooth alternatives.

Another key feature of MariSilicon Y is Personalised Spatial Audio, made possible by its NPU. While it’s also proprietary to Oppo, Personalised Spatial Audio takes conventional spatial audio one step further, by letting users reposition specific musical elements (drums, vocals, bass, instrument) to create a “live” listening experience specific to the user’s taste – all on-device, on-chip. This was made possible with two sub-technologies: Music Extraction (which isolates these elements) and Spatial Rendering (the ability to adjust those elements).

Oppo didn’t specify if MariSilicon Y will appear on their mobile devices and earbuds, or share if it’s currently sold to other manufacturers. However, it did say that the chipset enables lossless Bluetooth audio in compatible earbuds and headphones.

Source: Oppo (newsroom)

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