Basic principles of delta modulation are reviewed, particularly with respect to dynamic range of speech. Techniques for increasing dynamic range and consequent engineering trade-offs are discussed. The AmBiChron principle of time compression and expansion is described, together with the AmBiChron`s use of delta modulation. Advantages and disadvantages of using delta modulation in time compression/expansion are outlined. A brief demonstration will be given with the oral presentation at the 61st AES Convention.
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https://aes2.org/publications/elibrary-page/?id=2963
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