发明名称 |
Method and apparatus for processing an audio signal using window transitions for coding schemes |
摘要 |
An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part. |
申请公布号 |
US9082399(B2) |
申请公布日期 |
2015.07.14 |
申请号 |
US201313960220 |
申请日期 |
2013.08.06 |
申请人 |
Industry-Academic Cooperation Foundation, Yonsei University |
发明人 |
Oh Hyen-O;Lee Chang Heon;Kang Hong Goo;Song Jung Wook |
分类号 |
G10L21/00;G10L19/00;G10L19/04;G10L19/022;G10L19/18;G10L19/005;G10L25/45 |
主分类号 |
G10L21/00 |
代理机构 |
Ladas & Parry, LLP |
代理人 |
Ladas & Parry, LLP |
主权项 |
1. A method for processing an audio signal, comprising:
receiving, by an audio processing apparatus, coding identification information indicating whether to apply a first coding scheme or a second coding scheme to a current frame of the audio signal, 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; applying a current window to the current frame based on the window type information, wherein, when the first coding scheme is applied to a previous frame, the current window is determined to be one of a short window, a long stop window, or a stop start window, wherein the long stop window and the stop start window have an ascending line which width is N/4, the long stop window has a descending line which width is N, and the stop start window has a descending line which width is N/8, and wherein the N is the frame length. |
地址 |
Seoul KR |