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DAT-数字音频磁带录音机(Digital Audio Tape-recorder)已被看做是下一代音频技术的主流而受到关注。在日本,一些主要厂家发展了各式各样的研究成果。两年前,就DAT规格制式的统一问题,召集有关专家进行了座谈。两年来,又先后邀请各厂第一线技术人员进行了多次讨论,从而制定出现行的DAT总体技术指标。本文就现今制定的DAT规格制式做一梗概介绍,并对S/R(固定磁头式和旋转磁头式)两种制式进行了比较,最后展望了DAT今后的发展趋向。
DAT-Digital Audio Tape-recorders have drawn attention as the mainstream of next-generation audio technologies. In Japan, a number of major manufacturers have developed a wide range of research results. Two years ago, on the issue of the unification of the DAT format, convened experts to hold discussions. In the past two years, the technical personnel at the frontline of each plant have been invited to conduct discussions for many times so as to formulate the overall technical indicators of DAT. In this paper, a general introduction to the DAT standard format developed today is made, and the S / R (fixed head type and rotary head type) standards are compared. Finally, the future development trend of DAT is forecasted.