DISPLAY APPARATUS AND ECHO CANCELLATION METHOD THEREOF

摘要

A display apparatus is provided. The display apparatus includes a display, a video receiver, and a processor. The display is configured to display an image. The video receiver is configured to receive an input signal of an impulse response. The processor configured to divide the input signal into sub-bands, apply primary echo-cancellation to the input signal by using sub-band signals corresponding to the sub-bands, estimate a residual echo based on acoustic echo path information obtained in the primary echo-cancellation with regard to each of the sub-bands, and perform secondary echo-cancellation to remove the estimated residual echo from the primary-echo-canceled input signal.

主权项

1. A display apparatus comprising:
a display configured to display an image; a video receiver configured to receive an input signal of an impulse response; and at least one processor configured to divide the input signal into a plurality of sub-bands, apply primary echo-cancellation to the input signal by using a plurality of sub-band signals corresponding to the plurality of sub-bands, estimate a residual echo based on acoustic echo path information obtained in the primary echo-cancellation with regard to each of the plurality of sub-bands, and perform secondary echo-cancellation to remove the estimated residual echo from the primary-echo-canceled input signal.