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Rockchip RK2108 Smart Audio Dock Converts Tablets into Smart Displays

Last April, Rockchip published a roadmap to 2020 with processors such as RK3588 Cortex-A76/A55 or RK3530 quad-core Cortex-A55 SoCs. Part of the roadmap was also Rockhip RK2108 Arm Cortex-M4 microcontroller with an Audio DSP which did not get as much coverage. The company has now announced RK2108 based smart docks that convert tablets into smart display / speakers so that they can be waken-up and controlled by voice commands. Rockchip RK2108 audio MCU supports A/D audio interface, MIPI DSI/MCU LCD interface and USB2.0 interface, and comes with the following key features: Built-in audio DSP  for voice/audio signal processing Audio pre-processing, active noise reduction, AEC, etc… for improved voice recognition Customizable wake-up words and offline instructions Ultra-low power consumption in both standby and operating modes The RK2108 smart dock pictured above connects to compatible Android tablets over USB or Bluetooth, and turns those into smart display products that can handle voice […]

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Amlogic S912 vs Amlogic A311D/S922X-B Benchmarks Comparison

A few days ago we compared Amlogic A311D to Rockchip RK3399 since both the top-of-the-line processors from Amlogic and Rockchip are currently available. Rockchip RK3588 will even be faster, but we need to wait until Q1 2020 at least before it becomes available, and delays are not unheard of, so I’d expect it may take about one year before I can get my hands on a sample. Another comparison is against Amlogic S912, the previous high-end processor from the company. Amlogic A311D and S922X-B are newer and will be faster but it’s interesting to find out just how much. Note the Amlogic S922X found in ODROID-N2 is clocked at a lower speed compare to A311D/S922X-B, so performance will be somewhat lower. Since I recently benchmarked Khadas VIM3 with Amlogic A311D processor, I decided to dust off my old Khadas VIM2 Amlogic S912 development board, fit it a large heatsink, install […]

Khadas Edge2 Arm mini PC
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Amlogic A311D and S922X-B Processors Support 8K VP9 Video Decoding

We’ve already written about future processors that will support 8K video decoding, such as Rockchip RK3588 that is expected to launch in early 2020. But I’ve just read claims that Amlogic A311D and S922X-B processors could also decode VP9 8K at 30 fps. So let’s have a look at Amlogic A311D datasheet first: Amlogic Video Engine (AVE-10) offloads the Cortex-A53 CPUs from all video CODEC processing. It includes dedicated hardware video decoder and encoder. AVE-10 is capable of decoding 4Kx2K resolution video at 75fps with complete Trusted Video Path (TVP) for secure applications and supports full formats including MVC, MPEG-1/2/4, VC-1/WMV, AVS, AVS+, AVS2 RealVideo, MJPEG streams, H.264, H265-10, VP9 and also JPEG pictures with no size limitation. The independent encoder is able to encode in JPEG or H.265/H.264 up to 1080p at 60fps There’s only mention of 4Kx2K decoding at up to 75fps, and further down in the document, […]

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Allwinner Tablet SoC Roadmap 2019 – 2020

Both Rockchip and Amlogic have some pretty interesting processors coming down the pipe with for example Rockchip RK3588 Cortex A76/A55 or Amlogic S922D Cortex A73/A53 SoCs both featuring an neural processing unit (NPU) for AI workloads acceleration at low power. The companies also have updated entry-level quad Arm Cortex-A55 processors with RK3530 and S905X3 models which are planned to launch later this year. But this made me wonder what was going with Allwinner since the company got really quiet, except for the “launch” of renamed processors for a specific business unit. That’s the only company among the three to have yet to announce a Cortex-A7X 64-bit Arm processor. The good news is that the company has released a roadmap of sort for their A-Series processors for tablets. The less good news is that very few details are available for the processors except for one: Allwinner A50 – Quad core Cortex-A7 […]

Khadas VIM4 SBC