The traditional beamforming methods are presented and the challenges that arise when applying a traditional beamformer to acoustical indoor applications are discussed. Finally, Kardome’s location-based speech enhancer is presented and its applicability to extracting the desired speech portion in a noisy, multi-speaker, and reverberant environment is demonstrated in a natural VUI application.

Kardome™ is an innovative microphone that provides a spatial focus on the desired speaker in acoustically challenging environments such as vehicles. Unlike other microphones, which are based mostly on directional beamformers, Kardome™ provides a location-based speech enhancer, which focuses the microphone on the location of the desired source rather than toward the direction of the source.

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