从档案留声机记录中去除划痕和脉冲噪声

Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics Pub Date : 1900-01-01 DOI:10.1109/ASPAA.1991.634138

S. Vaseghi

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引用次数: 0

摘要

摘要描述了从存档留声机技术中去除划痕和脉冲噪声的摘要算法。脉冲和脉冲刮痕去除方法都是基于检测-插值滤波方案。这是由于观察到划痕和脉冲噪声只破坏了信号的一小部分，因此仅检测和局部处理那些被污染的信号段是有利的。这避免了不必要的修改和无噪音样品质量的妥协。噪声检测和信号插值方法都是基于声学音频信号的线性预测编码(LPC)建模。

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Removal of Scratches and Impulsive Noise from Archive Gramophone Records

L Summary Algorithms are described for the removal of scratches and impulsive noise from archived gramophone tecordhgs. Both the impulsive and the: scratch removal methods are based on a detection-interpolation filtering scheme. This is motivated by the observation that scratches and impulsive noise corrupt only a fraction of the signal, and therefore it is advantageous to detect and locally process only those signal segments which are contaminated. This avoids unnecessary modification and compromise in the quality of noiseless samples. The noise detection and the signal interpolation methods are based on linear prediction Coding (LPC) modelling of acoustic audio signals.

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Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics

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