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An Efficient Scheme for Lossy Real-Time Audio Data Compression

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The increasing use of digital audio in personal computers indicates an ongoing need for computationally efficient audio data compression. An implementation of adaptive differential pulse-code modulation incorporating a recursively indexed quantizer (RIQ-DPCM) is presented as an alternative method for efficient audio signal compression on general-purpose computers. The performance characteristics of the RIQ-DPCM procedure are compared with other standard coding techniques of similar computational complexity, and several real-time implementation issues are discussed.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=6310

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AES - Audio Engineering Society