[arm-allstar] Is anyone still using chan_usbradio?

[David McGough]

Patrick,

chan_usbradio works with HamVoIP and always has, the limitation is that it 
has poorer audio performance than chan_simpleusb, particularly on slower 
hardware, like the RPi2 or RPi3 boards.

With an RPi4, chan_usbradio performance is much better, however still
poorer than chan_simpleusb, which I've carefully optimized for the best 
audio performance that's reasonable practical.

As for the Kenwood TH-F6A, are you sure it has flat audio output?? 1200 
baud MODEMs typically are not setup for flat audio. 9600 baud MODEM 
support does expect flat audio and if a radio has a mode for use with 
faster MODEMS (e.g.: 9600 baud), you'll have a better chance of success.

73, David KB4FXC


On Sun, 14 Mar 2021, "Patrick Perdue via ARM-allstar" wrote:

> Hi:
> 
> I know that chan_usbradio is not officially supported by HamVoIP.
> 
> I have a project in mind that will only work if I can manage to get 
> usbradio running and use it's DSP for CTCSS detect. Basically, I want to 
> use an old Kenwood TH-F6A in 1200 baud mode, which provides open squelch 
> and flat audio I/O, but I need the CTCSS encode/decode capability of 
> usbradio. However, on both HamVoIP and the latest official non-beta ASL 
> image, I'm having trouble getting Asterisk to work properly with that 
> module loaded. Just wondering if I broke stuff, or if it works at all 
> these days.
> 
> 
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