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Page 71
IV.6.11
Rx
A decisive factor in real time audio streaming is the ‘jitter’, or delay variation. To
deal with the jitter in the connection, Prodys IP Family codec provides a tool
which allows the user to modify the size of the reception buffer, and so, to
compensate the jitter. The maximum value for this buffer is 10s.
Once the user knows the “jitter value” of the IP connection, the jitter buffer
should be set:
“Jitter Value” is the difference between the maximum and minimum delay.
If the jitter value is 0 it means that the delay is constant and it is not
necessary to adjust the jitter correction buffer in the reception side. If the
delay is not constant, it is necessary to adjust the buffer size in order to
guaranty not audio drops, even when the delay reaches the maximum
value.
The unit of this buffer is miliseconds, and the range is 0-10000. The delay
grows as many as the number of miliseconds the buffer has been set to.
The “jitter value” can me measured by the streaming tool commented
before.
Rule: Max User Line Delay + TBP >= Jitter value.
This value can be changed during the audio connection.
Summary of Contents for IP Family
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