Multi-core DSP raises in-vehicle sound levels for immersive experience
The AK7709VQ is a multi-core digital signal processor (DSP) by Asahi Kasei Microdevices (AKM). It enables the real time, large scale computational processing required to provide an immersive sound experience for passengers, said the company.
According to the company, the AK7709VQ DSP boosts the potential for a natural and immersive in-vehicle sound experience. It has a processing capability of 7,000 MIPS (millions of instructions per second) and 2.75Mbyte of integrated memory. The AK7709VQ performs real time, high resolution audio processing for multi-channel speaker arrays, enabling a quiet cabin with immersive music playback. The two integrated HiFi 4 DSP cores support third party software. The DSP’s features high sample rate multi-microphone voice processing, which allows for hands-free and in-car communication. The built-in audio hub function includes 20 channels of asynchronous hardware sample rate conversion (ASRC) and supports flexible digital I/O to and from many digital sources and endpoints.
AKM has also developed a sound design demo board combining the AK7709VQ DSP with the company’s AK4499EXEQ digital audio converter to demonstrate immersive in-vehicle sound. It is already in demo cars at the company’s Garage Labs in Tokyo, Shanghai and Shenzhen and will be available in Garage Labs in North America and Europe in the fourth quarter of 2023, assured the company.
Asahi Kasei Microdevices (AKM) is a Japan-based company, which operates an electronic components business of the Asahi Kasei Group’s Materials sector. AKM combines compound semiconductor technology used in magnetic sensors with the ASIC/analogue circuit technology used in silicon semiconductors for products used across a wide range of markets, including mobile communication devices and consumer products, as well as automotive electronics devices, household equipment, and industrial equipment.
