Invention Grant
- Patent Title: LPC residual signal encoding/decoding apparatus of modified discrete cosine transform (MDCT)-based unified voice/audio encoding device
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Application No.: US17895233Application Date: 2022-08-25
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Publication No.: US11887612B2Publication Date: 2024-01-30
- 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: Rabin & Berdo, P.C.
- Priority: KR 20080100170 2008.10.13 KR 20080126994 2008.12.15 KR 20090096888 2009.10.12
- Main IPC: G10L19/087
- IPC: G10L19/087 ; G10L19/125 ; G10L19/22 ; G10L19/26
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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