WIDE-BAND SPEECH AND AUDIO CODING
WIDE-BAND SPEECH AND AUDIO CODING
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DOI：
10.1109/35.256878
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发表时间：
1993-11-01
影响因子：
11.2
通讯作者：
NOLL, P
中科院分区：
文献类型：
--
作者：
NOLL, P
描述了宽带语音和音频信号的典型参数，包括每个信号的数字化版本、潜在应用和可用的传输介质。回顾了在音频编码中利用的人类听觉感知的事实以及在编码器评估和设计中发挥重要作用的质量测量。讨论了宽带语音和音频信号的有效编码技术，重点是现有标准。本书详细介绍了国际标准化组织 (ISO/MPEG) 运动图像专家组制定的音频编码标准，因为它将用于许多应用领域，包括纯音频信号的数字存储、传输和广播以及视频电话、视频会议和电视广播等视听应用。概述了正在进行的研究和标准化工作。<>
Typical parameters of wideband speech and audio signals, including digitized versions of each, potential applications, and available transmission media, are described. Facts about human auditory perception that are exploited in audio coding and quality measures that play an important role in coder evaluations and designs are reviewed. Techniques for efficient coding of wideband speech and audio signals, with an emphasis on existing standards, are discussed. The audio coding standard developed by the Moving Pictures Expert Group within the International Organization for standardization (ISO/MPEG) is covered in some detail, since it will be used in many application areas, including digital storage, transmission, and broadcasting of audio-only signals and audiovisual applications such as videotelephony, videoconferencing, and TV broadcasting. Ongoing research and standardization work is outlined.<>