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AKM is now sampling the AK7749, a DSP-integrated codec that enables in-vehicle hands-free voice processing without the need for a dedicated microcontroller.
Asahi Kasei Microdevices Corporation (AKM) has developed the AK7749, an DSP-integrated codec for automotive hands-free applications. The AK7749 features an automatic mode-switching function supporting multiple usage scenarios, as well as a full range of digital and analog input/output interfaces. The AK7749 is sampling now.
Voice applications have often required complex system design in order to provide features such as voice recognition and anomaly detection. This complexity is due to the need for a dedicated microcontroller, in addition to an audio device, to implement mode switching, data reading, and additional software functions.
The AK7749 features a built-in DSP that can automatically switch modes in response to specific usage scenarios. Its multiple digital and analog I/O interfaces are routed to an integrated audio hub, enabling flexible switching and routing that would traditionally require a microcontroller.
Additionally, the AK7749 supports AKM's beamforming technology, which has been developed over the past 20 years, as well as pre-processing for hands-free communication, voice recognition. This software suite enables clear calls in the cabin, and is well-suited to a variety of mic/speaker modules including automotive telematics communication units.
The AK7749 can also be used to easily add voice features to various in-vehicle devices, such as driving recorders.
Microcontroller-less automatic mode switching performed according to usage scenarios
Full range of digital and analog interface specifications optimal for voice applications
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