密纹唱片数字化有关技术问题的探讨

Discussion of the Digitation of Dense-line Gramophone Readers

音频数字化是音像资料数字化领域里的重要组成部分,音频中的唱片历史悠久发行量大,保留着很多珍贵的时代录音,越来越受到后人的关注,其数字化方式方法也很特殊,本文简要地回顾了唱片的历史,介绍其录音特性,给出密纹唱片录音参数的国际标准,重点研究密纹唱片数字化采集过程中的频率响应均衡问题和音频采集卡参数测试概况。

Frequency digitization composes an important part in the field of digitization of the audio-visual data.Gramophone records have a long-standing history and their distribution numbers have been big.Therefore,gramophone records have kept a lot of valuable record of the time and attracted more and more concern from the latter generations.The method of digitizing the records is also very special.We have briefly reviewed in this article the history of gramophone records,introduced their characteristics with reference to the international standards for the recording of dense-line records.We have specially studied the balance problem of frequency corresponding in the process of collecting the digitized dense-line gramophone records and studied the general situation of the test of frequency collective card.