New Version of Digital Speech Decoder DSD+ 1.071 Released

The latest version of Digital Speech Decoder+ (DSD+) has just been released, bringing it up to version 1.071. There appears to be no changelog, so we are unsure as to what is new, but one obvious change is that they now include a new program called FMP which is a simple NFM demodulator, similar to rtl_fm, although it does have a GUI with point and click tuning. FMP can be used as a replacement for SDR# or similar software, and is especially useful to use on low end devices such as netbooks.

An active discussion on the latest release of this software can be found in this thread on the RadioReference.com forums.

The FMP NFM demodulator tuned to a MotoTRBO signal.
The FMP NFM demodulator tuned to a MotoTRBO signal.

DSD+ is a Windows program which can be used to decode and listen to digital voice protocols such as D-STAR, NXDN4800, NXDN9600, DMR/MotoTRBO, P25 Phase 1, X2-TDMA and ProVoice with an RTL-SDR or other radio. On some DMR systems you may also be able to use the included LRRP software, which allows you to view the GPS locations of broadcasting radios. The last major release was version 1.05.

DSD+ GUI
DSD+ GUI

The DSD+ team are now also offering a “fast lane” early access program, which for a small donation will allow you to have early access to new and upcoming DSD+ features. They aim to release a new update to donators every 7 to 30 days, while stable public releases will continue to be released every 4 to 6 months. The donation costs $10 for one year of early access, and $25 for lifetime updates. Some features they are currently working on include:

  • Better tablet support
  • IDAS/NEXEDGE/Cap+/Con+/TIII trunk voice following
  • Per-call audio recordings
  • Other needed DSD+ upgrades
  • FMP upgrades
    • Squelch
    • Drift tracking
    • Selectable sampling rates
    • Adjustable windows sizes
    • TCP client/server mode (eliminates VAC / VB-C)
    • Multiple VFOs
    • Airspy support
Subscribe
Notify of
guest

3 Comments
Inline Feedbacks
View all comments
kd6aaj

I can’t get DSD+ to decode P25 phase 1 simulcast no matter what I’ve tried so far, I just hear digital sounds and I can see some text showing the TUID of the transmitters. SDR-Trunk v 0.4.0 will decode it though, but I’d like to use SDR#. I use SDR# as a scanner, and every channel I have is analog except for this one police department.

I am using “DSD+ 1.101” with “sdrsharp_v1732-x86” and “VB-Audio Virtual Cable” v 1.0.3.5 dated Sept 2 2014.

Running Windows 10 x64 on a PC that has an AMD Ryzen 6-core CPU @ 3.75 MHz and it has 16GB RAM, so my computer is up to the challenge.

Kd5loh

Use task manager and Chang priority to high

James

My dsd decodes but same chopping destroying sound I hear any suggestions