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Brian Rak dn at devicenull.orgThanks, that was it! On Tue, Apr 14, 2020 at 11:07 AM <wllmbecks at gmail.com> wrote: > Brian, > > > > Phase-I FDMA LSM (Simulcast) and Phase-II TDMA systems require the CQPSK > demodulator option. Change your command line from *(-D fsk4)* to *(-D > cqpsk), *then > > add *(-V) *to enable the vocoder that compliments the *(-2)* Phase-II > TDMA option. > > > > Bill, WA8WG > > > > > > *From:* op25-dev <op25-dev-bounces at lists.osmocom.org> *On Behalf Of *Brian > Rak > *Sent:* Tuesday, April 14, 2020 8:24 AM > *To:* op25-dev at lists.osmocom.org > *Subject:* [op25-dev] P25 P2 corrupted audio? > > > > I've been trying to use OP25 to listen to a Project 25 Phase 2 system, and > so far all I've managed to get is weird corrupted audio out of it. It > almost sounds like the audio isn't being decoded at all, and it's just > playing me the raw bit stream. > > > > I'm using: > > > > # ./rx.py --nocrypt -f 770081250 -N 'LNA:47' -2 -T trunk.tsv -l http: > 192.168.5.134:4445 -v 8 --args 'rtl' -S 274000 -w -W 192.168.5.224 -q 2 > -D fsk4 > > > > (have tried with and without the fsk4). > > > > I do see debug output that seems to indicate it's following the channel > properly: > https://gist.githubusercontent.com/devicenull/1086fe103f751be9103a86496b46709a/raw/920fa584beab0ff3ae7f0735fe6a6750023440d3/gistfile1.txt > > > > I'm listening in on a remote device with vlc: vlc.exe --clock-jitter=500 > --network-caching=0 --demux=rawaud --rawaud-channels 1 --rawaud-samplerate > 8000 udp://@:23456 > > > > The machine I'm running OP25 on doesn't really have a sound setup (it's a > server, no GUI or speakers), so I can't really confirm if the issue is with > the sound or VLC. > > > > Any suggestions? > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/op25-dev/attachments/20200414/7608cee8/attachment.htm>