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AssigneeMitel Knowledge Corporation
InventorsMaziar Amiri, Graham Thompson
Estimating the term…
A beamformer for outputting an enhanced signal to a speech recognition system, comprising a microphone array for receiving audio signals from a plurality of microphones, a steering module connected to the microphone array for calculating audio parameters related to the location of a talker, the steering module being subject to an inherent initial delay in calculating the parameters, a buffer module connected to the microphone array for delaying the audio signals by at least the inherent initial delay; and a beamforming part connected to the buffer module and the steering module for directing the microphone array toward the talker in response to receiving the audio parameters from the steering part, such that an enhanced signal is output for application to a speech recognition system.
For use with a beamformer having a steering part for calculating, after an inherent initial delay, audio parameters related to the location of a talker in a handsfree telephony environment, and a beamforming part for directing a microphone array toward said talker in response to receiving said audio parameters from said steering part, such that an enhanced signal is output for application to a speech recognition system, the improvement comprising delaying application of audio signals received from said microphone array to said beamforming part of said beamformer by an amount at least as much as said initial inherent delay, whereby said beamformer outputs an enhanced signal to said speech recognition system.
A beamformer for outputting an enhanced signal to a speech detection system, comprising:
Dependencies are inferred from the claim text.