[arm-allstar] Very jittery audio on Raspberry Pi Zero 2 W

David McGough kb4fxc at inttek.net
Fri Dec 23 11:48:37 EST 2022


I've got several RPiZ2W boards, no issues at all with WiFi, choppy audio, 
etc.  Is the choppiness in both directions, or just one direction?

Also, what happens if you get the RPiZ2W spaced away from all other WiFi /
Bluetooth devices?  In my test setup, I've got the Z2W node 10+ feet from
the Ubiquiti Loco M2 and other nodes.  I've only extensively tested Loco
M2 AP's with my Z2W nodes.  At a spacing of about 10 feet, iwconfig
reports -45dBm on the Z2W.  And, the LocoM2 reports -48dBm.  I've
currently got 8 WiFi devices linked to this LocoM2, all but 3 devices
being various RPi hardware.

Merry Christmas!

73, David K4FXC


On Fri, 23 Dec 2022, Patrick Perdue via ARM-allstar wrote:

> Hi:
> 
> I am experiencing very choppy audio on a Raspberry Pi Zero 2 W connected 
> to a Ubiquiti U6 Lite access point. Latency and jitter look pretty good. 
> No lost packets. Some spikes, but I've seen much worse with better results.
> 
> I am running in turbo mode. It doesn't matter where I connect. I'm even 
> experiencing choppy audio even when connected to another node on my LAN, 
> which is hard-wired, sending all local traffic between the two nodes on 
> the LAN. The internet isn't involved. However, local parrot sounds fine.
> 
> Repeaterphone on the same WiFi access point is nice and smooth, as is 
> DVSwitch Mobile, and another HamVoIP node running on a Raspberry Pi 3 
> model b from 2016, also on WiFi.
> 
> Other than not using WiFI, which I'd love to do, but can't, what else 
> should I look for? I would blame WiFi in general, but the other HamVoIP 
> node, which is about 6 inches away from this one, is performing much 
> better. The Pi Zero 2 W is currently at -61 dBm, while the better 
> performing Pi 3 model b is sitting at -58 dBm on the same AP.
> 
> 
> 
> 
> _______________________________________________
> 
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> 
> Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
> 



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