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现场采访、语音录音是新闻报道工作中的重要手段。目前使用的磁带式采访机体积、功耗较大、录音时间较短、语音编辑亦较困难。“便携式数字采访机”运用先进的 DSP器件实现高效 AMBE算法 ,将语音信号压缩编码后 ,采用半导体器件作为语音信号存储载体 ,进行语音信号的录放。它无需任何机械装置 ,彻底克服磁带式采访机的缺点。本文简要介绍 AMBE算法及编解码器件 AMBE- 10 0 0特点 ,重点在其应用。包括“便携式数字采访机”开发的必要性、系统构成及单元功能、器件选择、功能特点等 ,并对其应用进行了展望。
Live interviews, voice recording is an important means of news reporting. Currently used tape-based interview machine size, power consumption, recording time is shorter, voice editing is more difficult. “Portable Digital Interviewer” uses advanced DSP devices to realize efficient AMBE algorithm. After compressing and encoding voice signals, the semiconductor device is used as a voice signal storage carrier for voice signal recording and playback. It does not require any mechanical devices to completely overcome the shortcomings of the tape-based interview machine. This article briefly introduces AMBE algorithm and codec device AMBE-10 0 0 features, focusing on its application. Including the necessity of development of “portable digital interview machine”, system composition and unit function, device selection, function features and so on, and its application is forecasted.