Title:
オーディオ信号を処理する方法及び装置
Document Type and Number:
Japanese Patent JP2013505475
Kind Code:
A
Abstract:
A method comprising: receiving coding identification information indicating whether to apply a first coding scheme or second coding scheme to a current frame; when the coding identification information indicates that the second coding scheme is applied to the current frame, receiving window type information indicating a particular window for the current frame, from among a plurality of windows; identifying that the current window is a stop_start window based on the window type information, wherein the stop_start window follows one of a long start window, a short window and a window of the first coding scheme for a previous frame, wherein the stop_start window is followed by one of a long_stop window, a short window and a window of the first coding scheme for a following frame, wherein the stop_start window is determined from among a gentle-gentle stop_start window, a gentle-steep stop start window, a steep-gentle stop_start window and a steep-steep stop_start window; when the first coding scheme is applied to a previous frame, applying one of the gentle-gentle stop_start window and the gentle-steep stop_start window to the current frame; and, when the first coding scheme is applied to a following frame, applying one of the gentle-gentle stop_start window and the steep-gentle stop_start window to the current frame, wherein: the gentle-gentle stop_start window comprises an ascending line with first slope and a descending line with the first slope, the gentle-steep stop_start window comprises an ascending line with the first slope and a descending line with a second slope, the steep-gentle stop_start window comprises an ascending line with the second slope and a descending line with the first slope, the steep-steep stop_start window comprise an ascending line with the second slope and a descending line with the second slope, and, the first slope is gentler than the second slope.
Inventors:
Oh-Oh
Li Chang Hong
Change
Song Jung Ok
Li Chang Hong
Change
Song Jung Ok
Application Number:
JP2012529683A
Publication Date:
February 14, 2013
Filing Date:
September 17, 2010
Export Citation:
Assignee:
LG ELECTRONICS INC.
Industry-Academic Corporation Foundation, Yonsei University
Industry-Academic Corporation Foundation, Yonsei University
International Classes:
G10L19/022; G10L19/00; G10L19/02; G10L19/18; G10L19/20; G10L25/45
Domestic Patent References:
| JP2012505423A | 2012-03-01 | |||
| JP2011627453A | ||||
| JP2012505423A | 2012-03-01 | |||
| JP2011627453A |
Other References:
JPN7013002390; Ｎｅｕｅｎｄｏｒｆ、外１５名: 'Ａ ｎｏｖｅｌ Ｓｃｈｅｍｅ ｆｏｒ Ｌｏｗ Ｂｉｔｒａｌｅ Ｕｎｉｆｉｅｄ Ｓｐｅｅｃｈ ａｎｄ Ａｕｄｉｏ Ｃｏｄｉｎｇ - ＭＰＥＧ ＲＭ０' Ａｕｄｉｏ Ｅｎｇｉｎｅｅｒｉｎｇ Ｓｏｃｉｅｔｙ Ｃｏｎｖｅｎｔｉｏｎ Ｐａｐｅｒ ７７１３ , 20090507
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura