| 摘要 |
A system and method for compressing and transferring analog data in a packet-based computer network in which the times for packets to travel to the destination may vary. The analog signal is sampled at the source to produce a digital data stream. The digitized samples for repetitious sections of the signal are compressed into bytes. Repetitious sections are sections of the signal that are rising, falling, or level. Bytes of compressed data consist of a sign bit for direction of the signal, the amount of change from one signal segment to the next, and the number of samples in a segment. Sampling for the packets overlaps so that each packets contains a certain amount of redundant data. Also, predictive data is appended to each packet. Thus, if a packet is late or lost, the redundant and predictive data in adjacent packets enable the receiver to play back smooth, uninterrupted audio.
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