DSD 1.4 and mbelib 1.2.3 released

[SCPD]

My netbook and its anemic Atom processor: 5.5 CPU seconds used per 100 seconds of input audio.
My laptop (1.6 GHz processor): 3 CPU seconds used per 100 seconds of input audio.

That 3 to 5 percent translates to an extra 15 to 25% CPU running five sessions; enough to push total program load over 50% at which point Windows gets sluggish.

 

[IanWraith]

Hi

I had similar problems with the filter on DMRDecode which reduced the number of errors but slowed the PC. I used the Java threading library so the main program runs in one thread with another thread fetching the audio data and filtering it. On dual (or more core) machines the program runs beautifully.

Regards

Ian

 

[kg4vdz]

Well i cant even find the software to download it every link turns up a dead end

 

[SCPD]

https://github.com/szechyjs/mbelib

https://github.com/szechyjs/dsd

 

[k1zxx]

I get this same set and I use a uniden 985xlt with the mod for the audio to a stereo jack into the sound card I have tried both line in and mic but get nothing on the dsd but this same list, so I went and got ubuntu latest version and am lost cant download the tar files or even get a command prompt to open I guess I need directions from step one to make this work, someone must have this.

I have installed dsd1.4.1 and the install seems to have ghone well except for the following errors which won't allow it to work:

error: couldn't open /dev/audio
ioctl: reset error
ioctl: speed error
ioctl stereo error
ioctl set fmt error

Is this all associateed with it not being able to find the sound card???? Someone please advise. I want to get this working and I have a PCI based SC on the way. An AC(& chip set

Thanks

 

[ejf2002]

I got this view, but no voice. Something I did wrong?

 

[mikicz]

Hello, does anyone use this on archlinus with oss? I have some issues and do not really know whether are from oss or dsd. Most of the time it does nothing, even if there are data on input and in very rare cases it does some decoding. I can hear the data from speakers, but nothing is indicated from dsd and decoding is not working

 

[mike_s104]

I got this view, but no voice. Something I did wrong?

Looks like its not really decoding anything. Also looks like there isn't enough for it to really decode. The one line says "unknown burst type". Are you using it on something it can decode (decoding supported by DSD)?

 

[mike_s104]

Has anyone got DSD to work with a BC780XLT? I need to use the data slicer output and have he radio in Trunked mode in order to enable remote control. I cannot seem to get the levels correct.

 

[txzeke]

How do you install all this onto a Windows 7 64bit laptop and will it decode TRBO using just the cable for a PSR-500 ? If installition/operation instructions isn't able to tell me via a link, please private message me here with an email addy I can contact you at, to get a detailed installation instructions from you please.

 

[DaveNF2G]

To answer your second question - No it will not. The PSR-500 outputs processed data that can be used by programs like PRO96COM to track digital trunked systems. DSD requires raw baseband audio.

 

[mtindor]

How do you install all this onto a Windows 7 64bit laptop and will it decode TRBO using just the cable for a PSR-500 ? If installition/operation instructions isn't able to tell me via a link, please private message me here with an email addy I can contact you at, to get a detailed installation instructions from you please.

Detailed instructions are listed in various threads regarding DSD in the Digital Decoding Software forum. It would serve you well to review all of those threads, as a lot of useful information is contained there.

Dave has already answered your question #2.

Regards,

Mike

 

[Markb]

Feature Request

I have a request, unless it's already there and I'm missing something.

Would it be possible to have DSD pass analog FM audio and be able to decode digital without changing the audio output from the reciever? This would be beneficial for listening to a mixed-mode P25 frequency or mixed trunked system.
I currently have to run DSD to listen to dig TG's on my local TRS or switch to speaker output to listen to analog.

MTIA,
Mark

 

[DaveNF2G]

https://github.com/szechyjs/mbelib

https://github.com/szechyjs/dsd

Github is no longer hosting executables.

The only other download link I could find via Google was yunitrunker's fake account on SourceForge.

Where are the Linux files available now?

 

[mtindor]

Github is no longer hosting executables.

The only other download link I could find via Google was yunitrunker's fake account on SourceForge.

Where are the Linux files available now?

The dsd and mbelib were never distributed in executable format for LInux. It was always the source code, and it was up to each user to compile mbelib and dsd themselves.

As long as the source is still available, that's all you need.

Mike

 

[SCPD]

Github is no longer hosting executables.

Github has never hosted DSD in binary form so that policy change had no impact for DSD + mbelib.

 

[rbrtklamp2]

DSD 1.4.1 MBELIB 1.2.3 for Linux W/ Build Instructions

Here are the build instructions and the .tar.gz files for Ubuntu 10.04.4

View attachment DSD For Ubuntu.zip

View attachment DSD&MBELIB Build Instructions.zip

Enjoy,
Bob

 

[EricCottrell]

Hello,

I found two small bugs in the mbe_convertImbe7100to7200 function of mbelib. The first is a off by one problem with the comparison of k for the skip of b2.2, b2.1, and b1 during copying. The comparison is done after k is incremented so imbe_d[41] is not copied and the last bit of b1 is copied instead. The second is a buffer overrun of imbe_d which is copied over the status bit (tmp_imbe[87]).

I took the liberty of rewriting part of the function starting at line 296 of imbe7100x4400.c to fix these two problems.

  j = 0;
  k = 1;
  while (j < 87)
    {
      tmp_imbe[j] = imbe_d[k];
      if (++j == 48)
        {
          j += (K + 2);         // skip over b1, b2.2, b2.1 on dest
        }
      if (++k == 42)
        {
          k += (K + 2);         // skip over b2.2, b2.1, b1 on src
        }
    }

  //copy new format back to imbe_d

  for (i = 0; i < 88; i++)
    {
      imbe_d[i] = tmp_imbe[i];
    }

}

I am using mbelib as a transcoder for a USB3000, a USB stick from DVSI that contains a AMBE-2+ codec. I got the version that also does P25. I send channel bits serially to the device and get voice bits back serially.

I modifed the DSD code to use the USB3000. Bit interleaving of the voice frame is part of the vocoder, so I had to remove the interleaving DSD does for P25 and DMR to get the USB3000 to work. For Provoice the program transcodes Provoice into 88 bit P25 frames.

The USB3000 works pretty good, although I still have to improve the code.

73 Eric

 

[nycap]

complile error

trying to install dsd on ubuntu 12.10
ran make in the mbelib.
error i get is when i run make in the dsd-master folder:

dsd_main.o: In function `noCarrier':
dsd_main.c.text+0x2b8): undefined reference to `mbe_initMbeParms'
dsd_main.o: In function `initState':
dsd_main.c.text+0x912): undefined reference to `mbe_initMbeParms'
dsd_main.o: In function `main':
dsd_main.c.text.startup+0x2c): undefined reference to `mbe_printVersion'
dsd_frame.o: In function `processFrame':
dsd_frame.c.text+0x763): undefined reference to `mbe_initMbeParms'
dsd_frame.c.text+0x945): undefined reference to `mbe_initMbeParms'
dsd_frame.c.text+0xb63): undefined reference to `mbe_initMbeParms'
dsd_mbe.o: In function `playMbeFiles':
dsd_mbe.c.text+0xbd): undefined reference to `mbe_initMbeParms'
dsd_mbe.c.text+0x175): undefined reference to `mbe_processImbe4400Dataf'
dsd_mbe.c.text+0x23b): undefined reference to `mbe_processAmbe2250Dataf'
dsd_mbe.o: In function `processMbeFrame':
dsd_mbe.c.text+0x346): undefined reference to `mbe_processAmbe3600x2250Framef'
dsd_mbe.c.text+0x3ef): undefined reference to `mbe_processImbe7100x4400Framef'
dsd_mbe.c.text+0x4a9): undefined reference to `mbe_processImbe7200x4400Framef'
collect2: error: ld returned 1 exit status
make: *** [dsd] Error 1

any help would be greatly apprecitated.

 

[SCPD]

nycap - did you run "sudo make install" on mbelib before building DSD?