A low-delay transform domain approach to trellis coded quantization

作     者：Sanchez, V Rubio, AJ LopezSoler, JM delaTorre, A Peinado, AM 

作者机构：Dpto. de Electrónica y Tecnología de Computadores Facultad de Ciencias Universidad de Granada 18071- Granada Spain 

出 版 物：《SPEECH COMMUNICATION》 (语言通信)

年 卷 期：1997年第21卷第3期

页      面：141-153页

核心收录：

学科分类：05[文学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：speech coding transform domain trellis coded quantization low-delay discrete cosine transform 

摘      要：In this paper we propose a new transform domain coding technique called transform trellis coded quantization (TTCQ) that is based on the trellis coded quantization technique recently proposed where Ungerboeck s amplitude modulation trellises and set partitioning ideas are used for source coding. We combine the proposed technique with a transform domain formulation far small frame sizes obtaining a transform domain scheme suitable for low-delay speech coding. We have applied this scheme to the coding of 7 kHz wideband speech, studying its performance for several discrete transforms and comparing it with a predictive version of the trellis coded quantization technique for different bit rates and number of states in the trellis.