f4exb/dsdcc

dsdccx failed to replay/decode dmr_it_8.dis sample

shawnchain opened this issue · 4 comments

shawnchain commented

I have dsdccx compiled with mbelib enabled, and successfully decoded the ysf/dstar files under sample folder with command listed in the readme file, but no luck on DMR sample.

The command line used:

sox -t s16 -r 48k -c 1 dmr_it_8.dis -t s16 -r 48k -c 1 - | dsdccx -T2 -i - -fa -o - | play -q -t s16 -r 8k -c 1 -

outputs:

...
DSDDecoder::run: before processFrameInit: symbol 95339 (1675)
inlvl: 96% DSDDecoder::resetFrameSync: symbol 95392 (1571)
Sync: +DMRd DSDDecoder::run: good sync found: 10 symbol 95626 (11727)
DSDDecoder::run: before processFrameInit: symbol 95627 (1831)
inlvl: 101% DSDDecoder::resetFrameSync: symbol 95680 (2794)
No more input
End of process

OS:

Darwin dev.local 16.7.0 Darwin Kernel Version 16.7.0: Tue Jan 30 11:27:06 PST 2018; root:xnu-3789.73.11~1/RELEASE_X86_64 x86_64

shawnchain commented

UPDATE:
got success with dsd:

sox -t s16 -c 1 -r 48k ./samples/dmr_it_8.dis -t s16 -r 48k -c 1 - | dsd -i - -fa -o pa:1

f4exb commented

Looks like a bug introduced in v1.7.5 (DMR negative). Obviously this is polluting normal DMR operation.

shawnchain commented

One more question, I would like to decode the MMDVM modem output frames with DSDCCX, any hints on that ? it looks like a little bit off the topic, sorry :)

f4exb commented

Sorry dsdcc does not wotk on symbol input only sampled discriminator output.