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f4exb / dsdcc

Digital Speech Decoder (DSD) rewritten as a C++ library
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What exactly does dsdcc want as input ? #37

Closed righthalfplane closed 2 years ago

righthalfplane commented 4 years ago

I have looked for the answer and I found one comment 15 kHz NBFM. The program decimates the input to a bandwidth of 15 kHz, decodes it as FM, then interpolates to bandwidth of 48 kHz and scales the data to a 16 bit signed integer - this decodes NBFM speech perfectly. It processes the data in blocks of 4800 S16LE (i.e. 1/10 of a second) and writes out the blocks. Is that what dddcc wants ? I get parts of words it seems to translate about 1 out of 10 of the blocks. I am scanning and trying to decode the P25 channels that my IC-R30 decodes nicely.

nivex commented 3 years ago

According to the help text, P25 decoding is not supported by dsdcc. See also #26

github-actions[bot] commented 2 years ago

This issue is going to be closed due to inactivity