Invention Application
US20150081286A1 LPC RESIDUAL SIGNAL ENCODING/DECODING APPARATUS OF MODIFIED DISCRETE COSINE TRANSFORM (MDCT)-BASED UNIFIED VOICE/AUDIO ENCODING DEVICE
有权
LPC残留信号编码/解码修改的离散COSINE变换（MDCT） - 统一的语音/音频编码设备
- Patent Title: LPC RESIDUAL SIGNAL ENCODING/DECODING APPARATUS OF MODIFIED DISCRETE COSINE TRANSFORM (MDCT)-BASED UNIFIED VOICE/AUDIO ENCODING DEVICE
- Patent Title (中): LPC残留信号编码/解码修改的离散COSINE变换（MDCT） - 统一的语音/音频编码设备
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Application No.: US14541904Application Date: 2014-11-14
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Publication No.: US20150081286A1Publication Date: 2015-03-19
- 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
- Priority: KR10-2008-0100170 20081013; KR10-2008-0126994 20081215; KR10-2009-0096888 20091012
- Main IPC: G10L19/125
- IPC: G10L19/125
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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