Random pauses in output, for example when you've received
sound for several minutes from a given connection, then lose
three or four seconds of sound, or just random brief
interruptions in the sound you hear are most probably due
to:
The network you're communicating over, whether a local
network in your office or the global Internet, is busy and
sound packets are being delayed by other traffic. Unlike a
file transfer which can proceed at any speed, intelligible
audio requires not only adequate bandwidth (data rate) but
consistent delivery time. The latter condition breaks down as
a network approaches saturation. The only solution (other than
connecting to a faster network) is to reschedule your
conversation for a time when the network is less heavily
loaded. You may be able to reduce the severity of the pauses
in the sound you hear by increasing the jitter compensation time, which
delays playback of a transmission to provide a margin for
delayed packet to arrive.
Other tasks running in the background on your computer or
that of your interlocutor may be stealing CPU cycles that Speak
Freely needs in order to compress/decompress or encrypt/decrypt
sound in real time. Terminate the background tasks.