[arm-allstar] Asterisk internal latency

[Steve L]

I'd venture to say a 1.40 thing.  There were very noticeable timing
improvements in subsequent versions

https://wiki.asterisk.org/wiki/display/AST/Timing+Interfaces

I remember when I was using Asterisk as a PBX to hairpin my pots line, and
the echo induced by timing latencies was much improved when I upgraded to
1.6

On Thu, Apr 28, 2022, 7:52 PM "Patrick Perdue via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> 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
>
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