Smart Voice Processors from STMicroelectronics introduced
STMicroelectronics has introduced a digital audio processor for multi-microphone applications. ST's new Smart Voice product family claims to combine superior processing performance with unparalleled scalability and programmability to bring dramatic sound-quality improvements to mobile phones, tablets, gaming devices and video security systems.
The Smart Voice audio processors is supposed to unleash the powerful capabilities of digital MEMS microphones in multi-microphone arrays, especially for ST's MEMS microphones, enabling features like acoustic echo cancellation, noise suppression, or beam-forming, which are invaluable with the increasing use of cell phones and other consumer devices in noisy and uncontrollable environments. Multi-microphone systems are also expected to address next-generation audio applications, such as 3D sound processing, sound-source localization, virtual microphones, and audio zooming. A technology breakthrough, ST's newest digital audio processor is said to be based on an optimized hard-wired acoustic processing engine that offloads intensive computing tasks from the main application processor. It is believed to handle up to 6 digital microphone inputs with dynamic array re-configuration and dedicated channel processing. The device also claims to integrate a high-quality scalable acoustic processing core with a tunable 10-band equalizer, a peak limiter, and gain and volume controls.
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