有效的三次样条采样率转换

SBT/IEEE International Symposium on Telecommunications Pub Date : 1990-09-03 DOI:10.1109/ITS.1990.175643

J. de Carvalho, J. Hanson

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引用次数: 5

摘要

提出了一种基于局部三次样条插值的数字音频信号两级分数采样率转换的有效方法。第一阶段(上变频器)是计算最优的，使用多相网络。第二阶段(下变频)通常需要对每个样本进行系数计算，但由于三次样条插值的局部性质，也很有效

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Efficient sampling rate conversion with cubic splines

An efficient implementation of a two-stage fractional sampling rate conversion for digital audio signals is presented, based on: local cubic spline interpolation. The first (up-converter) stage is computationally optimal, using polyphase networks. The second (down-converter) stage generally requires coefficient calculations for each sample, but is also efficient because of the local nature of the cubic spline interpolation.<>

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SBT/IEEE International Symposium on Telecommunications

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