1e95db0977
NXDN48 Voice Decoding is Good Now Just use squelch if using SDR++ or GQRX to feed it. RTL-SDR input mode and NXDN still makes tons of false positives, and doesn't work well at all. May just be a bad signal issue but still think the RTLSDR input uses wrong center freq/tuned freq/"optimizations", need to get back to that some time, maybe also implement squelch settings on rtl_fm mode. Thanks to LouisErigHerve for his 'Improved NXDN Detection' update on his version, implemented it and works SO MUCH BETTER! May still disable the if ((state->lastsynctype == 9) || (state->lastsynctype == 17)) condition in dsd_frame_sync.c if I think it leads to more consistent decoding vs false positives. USE SQUELCH!
Digital Speech Decoder - Florida Man Edition
This version of DSD shouldn't be used by anybody wanting a stable DSD experience, please see the original version for that. Also, please don't submit bug reports to the links on this page, those will direct them to the original version. Links will be updated at a later date.
The purpose of this is to experiment with the RTL code and other things, and is purely for academic research into the inner workings of DSD. Basically, its for me to poke around with and see what I can manage to break.
Example Usage
padsp -m dsdfme -- ./dsd -fp -i rtl -o /dev/dsp -c 851.8M -d ./MBE/ -P -2 -D 1 -G 36
-i rtl to use rtlsdr -P set PPM error -D set device index number -G set device gain (0-49 typical)
License
Copyright (C) 2010 DSD Author GPG Key ID: 0x3F1D7FD0 (74EF 430D F7F2 0A48 FCE6 F630 FAA2 635D 3F1D 7FD0)
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.