[arm-allstar] Asterisk internal latency

[Patrick Perdue]

If using Asterisk in full duplex mode, I.E. duplex=2, there is obviously 
an inherent delay. What I want to know, however, is why that delay is as 
high as it is. It seems to have nothing, or very little, to do with the 
OSS sound driver, as this delay is about the same with a local VoIP 
device as any of the attached radios using the SimpleUSB channel driver. 
It just strikes me as odd that I can use a program like Jamulus or 
Sonobus, and get a high quality, uncompressed stereo PCM or OPUS stream 
to and from myself across the Atlantic via UDP in quite a lot less time 
than I can hear myself coming from my own repeater with all the delays 
from the SimpleUSB channel driver at zero, when network latency isn't 
even a factor. Yes, I realize that I'm talking about pushing more data 
across in these cases, and these programs are specifically designed for 
near zero latency due to their very nature, but it's just interesting to me.

Is this just the inherent behavior of the old Asterisk 1.4.x core, or is 
there something else going on here?

A curious HamVoIP user:

N2DYI