An Audio Broadcast System Using Delta Modulation
Digital systems are technically attractive for the delivery of high quality audio to the home because they can be substantially transparent even under conditions of impaired reception, and permit scrambling without degradation in quality. Conventional multilevel pulse code modulation (pcm), with its precise D-A converters (at least 13-bit), elaborate output filters and complex error correction, can perform very well, but its cost is much higher than that normally associated with consumer audio circuitry. This paper describes a digital transmission technique based on delta modulation, whose decoder cost is a small fraction of that of a pcm system.
- Published
- 1985-02
- Content type
- Original Research
- DOI
- 10.5594/M00819
- ISBN
- 978-1-61482-914-0
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