| IP audio [message #14373 is a reply to message #14372] |
Fri, 23 February 2007 10:38   |
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Wayne Parham
Messages: 18786
Registered: January 2001
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Illuminati (33rd Degree) |
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Sometimes I get those kinds of artifacts on VoIP phones too. Audio over IP uses technologies that really don't work well together. IP technology uses packets that are sent over arbitrary paths. The system is designed for fault tolerance, and allows for packets to arrive at differengt times, not necessarily in the order sent. This is great for fault tolerance, but terrible for something like an audio stream that is, by nature, time sensitive. It's not a good system at all for audio quality, but since we've moved so far in the direction of IP, it can be pressed into service to carry digitized audio or video streams. It's a force fit, at best. But as long as the packets arrive in a timely fashion, the audio stream sounds good.
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