Re: bridging ASL, DMR and DSTAR
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If you could run G722 at 16 kHz sampling within ASL that would be great. But I imagine the 8 ks/sec rate is pretty hard-coded into asterisk and not easily changed. Basically the issue is that the digital modes use vocoders and the analog side uses codecs. The 8 kHz codecs were never intended to reproduce anything above 3.4 KHz. If you pipe your digital radio to spectrum lab, or similar, you may be surprised how much “stuff” there is up around 3.5 kHz on some signals … it is better to chop that stuff off rather than generate a whole bunch of IMD with it.
From: main@DVSwitch.groups.io [mailto:main@DVSwitch.groups.io] On Behalf Of Steve KC1AWV
I see what you're getting at, Ken. I wonder if anyone has tried G722 on ASL? I think I have a desk phone that supports it, maybe I can try it out and see what happens.
On Wed, Oct 2, 2019 at 11:09 AM Ken KE2N via Groups.Io <firstname.lastname@example.org> wrote: