Invention Grant
US09378749B2 LPC residual signal encoding/decoding apparatus of modified discrete cosine transform (MDCT)-based unified voice/audio encoding device
有权
基于修正离散余弦变换（MDCT）的统一语音/音频编码装置的LPC残余信号编码/解码装置
- Patent Title: LPC residual signal encoding/decoding apparatus of modified discrete cosine transform (MDCT)-based unified voice/audio encoding device
- Patent Title (中): 基于修正离散余弦变换（MDCT）的统一语音/音频编码装置的LPC残余信号编码/解码装置
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Application No.: US14541904Application Date: 2014-11-14
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Publication No.: US09378749B2Publication Date: 2016-06-28
- Inventor: Seung Kwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jin Woo Hong , Jeongil Seo , Chieteuk Ahn , Hochong Park , Young-cheol Park
- Applicant: Electronics and Telecommunications Research Institute
- Applicant Address: KR Daejeon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejeon
- Agency: Nelson Mullins Riley & Scarborough LLP
- Agent Anthony A. Laurentano
- Priority: KR10-2008-0100170 20081013; KR10-2008-0126994 20081215; KR10-2009-0096888 20091012
- Main IPC: G10L21/00
- IPC: G10L21/00 ; G10L19/125 ; G10L19/22
Abstract:
Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
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