D.13. codecs.conf
Most codecs do not have any configurable
parametersthey are what they are, and that's all they are.
Some codecs, however, are capable of behaving in
different ways. This primarily means that they can be optimized for
a particular goal, such as cutting down on latency, making best use
of a network, or perhaps delivering high quality.
The codecs.conf
file is fairly new in Asterisk, and as of this writing it allows
configuration of Speex parameters only. The settings are
self-explanatory, as long as you are familiar with the Speex
protocol (see http://www.speex.org).
codecs.conf
also allows you to configure Packet Loss Concealment (PLC). You
need to define a [plc] section and indicate genericplc
=> true. This will cause Asterisk to attempt to interpolate
any packets that are missed. (Enabling this functionality will
incur a small performance penalty.)
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