Phonographic sound extraction using image and signal processing
Phonographic sound extraction using image and signal processing
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使用图像和信号处理提取唱片声音
DOI：
10.1109/icassp.2004.1326820
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
R. Ingold
中科院分区：
文献类型：
--
作者：
Sylvain Stotzer;O. Johnsen;Frédéric Bapst;Christoph Sudan;R. Ingold
称为VisualAudio的光学检索和存储技术提供了一种从模拟磁盘中提取声音信息的方法，而无需任何机械接触。过程很简单：我们用一个专用的模拟摄像机拍摄磁盘的每一面，我们把胶片作为我们的工作拷贝存储起来，当需要的时候，我们扫描胶片并处理图像，以便提取声音。这种技术可以用来从旧唱片中恢复声音，这些唱片的形状非常糟糕，以至于无法使用常规的转盘。一个工作原型已经建成，并已检索的声音从几个记录。我们提出了这个系统的信号处理问题，特别是，信噪比分析。
The optical retrieval and storage technique called VisualAudio provides a way to extract sound information from an analog disk without any mechanical contact. The process is straightforward: we take a picture of each side of the disk using a dedicated analog camera, we store the film as our working copy, and when needed, we scan the film and process the image in order to extract the sound. This technique can be used to retrieve the sound from old records that are in such a bad shape that no regular turntable can be used. A working prototype has been built and has retrieved the sound from several records. We present the signal processing issues of this system and, in particular, a signal-to-noise ratio analysis.