Inventors

Jang Inseon, Lim Woo-Taek, Ahn Chung Hyun, Cha Jihun

Application No.

14172998 (2014.02.05)

Publication No.

20150149166 (2015.05.28)

Registration No.

9336796 (2016.05.10)

Country

UNITED STATES

Project Code

13PR3100, Development of Broadcasting System based on Personalized Emotional UI/UX, Ahn Chung Hyun

Abstract

Provided is an apparatus for detecting a speech/non-speech section. The apparatus includes an acquisition unit which obtains inter-channel relation information of a stereo audio signal, a separation unit which separates each element of the stereo audio signal into a center channel element and a surround element on the basis of the inter-channel relation information, a calculation unit which calculates an energy ratio value between a center channel signal composed of center channel elements and a surround channel signal composed of surround elements, for each frame, and an energy ratio value between the stereo audio signal and a mono signal generated on the basis of the stereo audio signal, and a judgment unit which determines a speech section and a non-speech section from the stereo audio signal by comparing the energy ratio values.

KSP Keywords

Audio signal, Calculation unit, Energy ratio, Non-speech, Ratio value, Stereo audio, stereo audio signal