METHOD AND APPARATUS FOR RECREATING DIRECTIONAL CUES IN BEAMFORMED AUDIO

摘要

A method and apparatus are disclosed to recreate directional cues and in a conventional beamformed monophonic audio signal. In an example embodiment, the apparatus captures sound in an environment via the microphone array which includes a left reference and a right reference microphone. A monophonic audio signal is generated using conventional beamforming methods. A conventional monophonic beamformed signal lacks directional cues which may be useful for multiple output channels. By applying the phase offset data of the audio signals at the left and right reference microphones, directional cues may be created for audio signals for the left and right output channels respectively.

主权项

1. A method for recreating directional cues in beamformed audio, the method comprising:
receiving audio signal via the microphone array; receiving audio signal via the reference microphones in the array; beamforming the received audio signals to generate beamformed monophonic audio signal; and generating audio signals with directional cues by applying the phase offset information of the reference microphones to the beamformed monophonic audio signal.