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本文用计算机模拟方法研究了与激光唱片（ＣＤ）或数字录音磁带（ＤＡＴ）相兼容的录音和重放系统展宽其频带宽度和动态范围的可能性。以两倍于１６（或更高）比特的ＣＤ或ＤＡＴ的采样频率进行了模／数变换的宽带信号分成两个边带。上边带信号用ＡＤ－ＰＣＭ方式进行编码，并被嵌入１６比特数据的最低有效位；而以抵消高频抖动的１５比特的噪声整形量化进行编码的下边带信号，具有比ＣＤ或ＤＡＴ更宽的有效动态范围。本文对产生良好抵消高频抖动的方法进行了研究。
In this paper, the possibility of widening the bandwidth and dynamic range of a recording and playback system compatible with a compact disc (CD) or digital audio tape (DAT) using computer simulation has been investigated. A wideband signal that has been A / D-converted at twice the sampling frequency of CDs or DATs of 16 (or higher) bits is split into two sidebands. The upper sideband signal is encoded by the AD-PCM method and is embedded into the least significant bit of 16-bit data. The lower sideband signal encoded by 15-bit noise shaping quantization that cancels the high-frequency jitter has a wider bandwidth than the CD or the DAT Effective dynamic range. This article studies the methods that produce good cancellation of high frequency jitter.