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A Hybrid Approach to the Variable-Speed Replay of Digital Audio

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A method is described for replaying digital audio from any recording medium at speeds varying continuously from standstill to many times nominal speed. A hybrid approach is adopted which combines switched interpolation digital filters with a fixed reconstruction filter. Its performance is suitable for high quality applications and only requires relatively modest signal processing hardware.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=11553

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AES - Audio Engineering Society