RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog
 

Go Back   The RadioReference.com Forums > Computer Aided Monitoring and Programming > Voice/Control Channel Decoding Software


Voice/Control Channel Decoding Software - For discussion of software applications which decode digital voice formats and trunking control channels. Please use the HF Digital Signals forum for anything below 30MHz.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 01-12-2018, 4:26 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default DSD+ DMR problem

My local police dept. just recently moved from analog to DMR and sometimes when a user talks like the dispatcher I sometimes get unknown type error and and voice rate 1/2 something of those natures and I hear no audio. But its not the problem with their radios because I can hear the officers respond back to the dispatchers but I never heard the dispatcher. I have raw audio of the dispatcher talking but dsd+ not being able to decode it. The signal is very strong so its not a signal problem.
Reply With Quote
Sponsored links
  #2 (permalink)  
Old 01-12-2018, 4:31 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

https://vocaroo.com/i/s0rM21pUwv3F
Reply With Quote
  #3 (permalink)  
Old 01-12-2018, 4:35 PM
Forts's Avatar
Mentor
  RadioReference Database Admininstrator
Database Admin
Audio Feed Provider
Audio Feed Provider
 
Join Date: Dec 2002
Location: Strathroy, Ontario Canada
Posts: 5,371
Default

Can't really do anything with that sample... it's not in a format that DSD+ can open, plus it's pretty short.

Perhaps the dispatch side is encrypted?
__________________
Middlesex County/Strathroy-Caradoc Fire Paging Alerts: http://groups.google.com/group/middlesex-fire
Reply With Quote
  #4 (permalink)  
Old 01-12-2018, 4:41 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

Quote:
Originally Posted by Forts View Post
Can't really do anything with that sample... it's not in a format that DSD+ can open, plus it's pretty short.

Perhaps the dispatch side is encrypted?
You can download it in wav format or open DSD+ then change the default audio playback device to your virtual audio cable and it will decode since I just did it lol and I usually do it that way with samples from the internet. And the dispatch is definitely not encrypted because that weird error happens randomly with any user and I mostly do hear dispatch its just that sometimes dsd+ randomly gives those error during a random transmission start and the people who were upgrading their system did radio tests on slot 2 and they were just 2 people talking with each other but at a random point the error comes out of no where and messes it up for a single transmission.
Reply With Quote
  #5 (permalink)  
Old 01-12-2018, 4:43 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

That raw audio is the dispatch talking but dsd+ doesnt detect it and just spits out the same unknown type and rate 1/2 error.
Reply With Quote
Sponsored links
  #6 (permalink)  
Old 01-12-2018, 4:49 PM
mtindor's Avatar
OH/WV DB Admin
  RadioReference Database Admininstrator
Database Admin
Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2006
Location: Carroll Co OH / EN90LN
Posts: 6,255
Default

Quote:
Originally Posted by LD723 View Post
You can download it in wav format or open DSD+ then change the default audio playback device to your virtual audio cable and it will decode since I just did it lol and I usually do it that way with samples from the internet. And the dispatch is definitely not encrypted because that weird error happens randomly with any user and I mostly do hear dispatch its just that sometimes dsd+ randomly gives those error during a random transmission start and the people who were upgrading their system did radio tests on slot 2 and they were just 2 people talking with each other but at a random point the error comes out of no where and messes it up for a single transmission.
Give us more to work with. You have a tiny tiny smidge of voice at the beginning or end -- not even enough to decode more than a single syllable.

Record a few MB of actual raw audio, using DSDPlus, with the 'r' option from the console. It'll save it as DSDPlus-Raw-*.wav

Do the recording when you absolutely know there is voice traffic occurring. you need to save it using "r" so that it'll save in the proper format. Once you have us go to the download link you send, it's 22 khz and needs converted to 96 khz -- and thus by the time any of us decode it, it's already lost bits of information.


mike
__________________
Mike / AA8IA
PSR800/PRO197/BCD436HP/BCD536HP

If I PM you about a submission, please reply promptly or your submission may be rejected.
Reply With Quote
  #7 (permalink)  
Old 01-12-2018, 4:54 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

ok no problemo I will see if I can capture the transmissions with the error and voice because thats usually what happens lol. For example someone talks then the next you can't hear them at all. Once the transmission finishes and they talk again you can some how here them again lol. And dsd+ detects it as data and not actual voice.
Reply With Quote
  #8 (permalink)  
Old 01-12-2018, 6:08 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

Quote:
Originally Posted by mtindor View Post
Give us more to work with. You have a tiny tiny smidge of voice at the beginning or end -- not even enough to decode more than a single syllable.

Record a few MB of actual raw audio, using DSDPlus, with the 'r' option from the console. It'll save it as DSDPlus-Raw-*.wav

Do the recording when you absolutely know there is voice traffic occurring. you need to save it using "r" so that it'll save in the proper format. Once you have us go to the download link you send, it's 22 khz and needs converted to 96 khz -- and thus by the time any of us decode it, it's already lost bits of information.


mike

https://files.fm/u/p5w83sdu

Last edited by LD723; 01-12-2018 at 6:27 PM..
Reply With Quote
  #9 (permalink)  
Old 01-12-2018, 7:26 PM
mtindor's Avatar
OH/WV DB Admin
  RadioReference Database Admininstrator
Database Admin
Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2006
Location: Carroll Co OH / EN90LN
Posts: 6,255
Default

As odd as it sounds, When RID=1, it doesn't look like there is any voice being transmitted, rather data instead.

Not sure what that is all about. Wonder if dispatch is dispatching by typing into a console rather than talking.

Looks like something that someone more familiar with DSD+ (or DMR communications in general) might have to answer.

Sorry I couldn't be of more help. I'm hearing the 9090 unit (all he said was "Go Ahead"). When the "1" rid was active, just BS DATA was all I could see.

Mike
__________________
Mike / AA8IA
PSR800/PRO197/BCD436HP/BCD536HP

If I PM you about a submission, please reply promptly or your submission may be rejected.
Reply With Quote
  #10 (permalink)  
Old 01-12-2018, 7:53 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

Quote:
Originally Posted by mtindor View Post
As odd as it sounds, When RID=1, it doesn't look like there is any voice being transmitted, rather data instead.

Not sure what that is all about. Wonder if dispatch is dispatching by typing into a console rather than talking.

Looks like something that someone more familiar with DSD+ (or DMR communications in general) might have to answer.

Sorry I couldn't be of more help. I'm hearing the 9090 unit (all he said was "Go Ahead"). When the "1" rid was active, just BS DATA was all I could see.

Mike
Its ok lol I think it is something with the system itself because there are some officers who cant hear the station or each other sometimes but keep in mind they just migrated to dmr like 2 or 3 days ago lol and they are still testing. But the part I dont understand is that officers that are getting dispatched can hear the dispatcher even though on my screen it shows up as data and not voice. The radio 1 was dispatch
Reply With Quote
  #11 (permalink)  
Old 01-12-2018, 9:29 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

Quote:
Originally Posted by mtindor View Post
As odd as it sounds, When RID=1, it doesn't look like there is any voice being transmitted, rather data instead.

Not sure what that is all about. Wonder if dispatch is dispatching by typing into a console rather than talking.

Looks like something that someone more familiar with DSD+ (or DMR communications in general) might have to answer.

Sorry I couldn't be of more help. I'm hearing the 9090 unit (all he said was "Go Ahead"). When the "1" rid was active, just BS DATA was all I could see.

Mike
Also by chance do you know dsdplus email? The only one I could find is the fastlane one but I don't know if that's the proper email to contact.
Reply With Quote
  #12 (permalink)  
Old 01-12-2018, 10:12 PM
mtindor's Avatar
OH/WV DB Admin
  RadioReference Database Admininstrator
Database Admin
Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2006
Location: Carroll Co OH / EN90LN
Posts: 6,255
Default

Quote:
Originally Posted by LD723 View Post
Also by chance do you know dsdplus email? The only one I could find is the fastlane one but I don't know if that's the proper email to contact.
The FastLane email should work fine.

Mike
__________________
Mike / AA8IA
PSR800/PRO197/BCD436HP/BCD536HP

If I PM you about a submission, please reply promptly or your submission may be rejected.
Reply With Quote
  #13 (permalink)  
Old 01-13-2018, 4:34 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

Quote:
Originally Posted by LD723 View Post
Its ok lol I think it is something with the system itself because there are some officers who cant hear the station or each other sometimes but keep in mind they just migrated to dmr like 2 or 3 days ago lol and they are still testing. But the part I dont understand is that officers that are getting dispatched can hear the dispatcher even though on my screen it shows up as data and not voice. The radio 1 was dispatch
Alrighty just made a discovery I used the old DSD version that was made for linux ported on windows and I used my raw dmr audio with the data transmission and the old DSD actually decoded all of the voice.
Reply With Quote
  #14 (permalink)  
Old 01-13-2018, 7:45 PM
mtindor's Avatar
OH/WV DB Admin
  RadioReference Database Admininstrator
Database Admin
Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2006
Location: Carroll Co OH / EN90LN
Posts: 6,255
Default

Quote:
Originally Posted by LD723 View Post
Alrighty just made a discovery I used the old DSD version that was made for linux ported on windows and I used my raw dmr audio with the data transmission and the old DSD actually decoded all of the voice.
Interesting. Where did you get a DSD Win port? I can't seem to find a good link to it anymore.

Mike
__________________
Mike / AA8IA
PSR800/PRO197/BCD436HP/BCD536HP

If I PM you about a submission, please reply promptly or your submission may be rejected.
Reply With Quote
  #15 (permalink)  
Old 01-13-2018, 7:53 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

Quote:
Originally Posted by mtindor View Post
Interesting. Where did you get a DSD Win port? I can't seem to find a good link to it anymore.

Mike
The link for download is at the bottom of the article https://www.rtl-sdr.com/receiving-ds...d-1-7-windows/
You also have to make a batch file with the commands for dsd to launch.
Reply With Quote
  #16 (permalink)  
Old 01-13-2018, 8:18 PM
mtindor's Avatar
OH/WV DB Admin
  RadioReference Database Admininstrator
Database Admin
Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2006
Location: Carroll Co OH / EN90LN
Posts: 6,255
Default

Quote:
Originally Posted by LD723 View Post
The link for download is at the bottom of the article https://www.rtl-sdr.com/receiving-ds...d-1-7-windows/
You also have to make a batch file with the commands for dsd to launch.
Thank you.
m
__________________
Mike / AA8IA
PSR800/PRO197/BCD436HP/BCD536HP

If I PM you about a submission, please reply promptly or your submission may be rejected.
Reply With Quote
  #17 (permalink)  
Old 01-13-2018, 8:54 PM
mtindor's Avatar
OH/WV DB Admin
  RadioReference Database Admininstrator
Database Admin
Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2006
Location: Carroll Co OH / EN90LN
Posts: 6,255
Default

Very intriguing. DSD 1.70 win port (for viewers, I'm not referring to DSDPlus) decodes RID 9090 and RID 1 audio just fine. The lady dispatcher voice decoded beautifully.

That is definitely an indication of something broken somewhere in DSDPlus, i would think.

mike
__________________
Mike / AA8IA
PSR800/PRO197/BCD436HP/BCD536HP

If I PM you about a submission, please reply promptly or your submission may be rejected.
Reply With Quote
  #18 (permalink)  
Old 01-13-2018, 10:05 PM
Member
   
Join Date: Dec 2016
Posts: 26
Default

Quote:
Originally Posted by mtindor View Post
Very intriguing. DSD 1.70 win port (for viewers, I'm not referring to DSDPlus) decodes RID 9090 and RID 1 audio just fine. The lady dispatcher voice decoded beautifully.

That is definitely an indication of something broken somewhere in DSDPlus, i would think.

mike
Also I have a question when you did the test with the raw audio on dsdplus was it the fastlane or public realease? I want to figure out if this problem occurs on the fastlane version but I don't want to buy it knowing it doesn't work lol.
Reply With Quote
  #19 (permalink)  
Old 01-13-2018, 10:20 PM
mtindor's Avatar
OH/WV DB Admin
  RadioReference Database Admininstrator
Database Admin
Amateur Radio Operator
Amateur Radio
 
Join Date: Dec 2006
Location: Carroll Co OH / EN90LN
Posts: 6,255
Default

Quote:
Originally Posted by LD723 View Post
Also I have a question when you did the test with the raw audio on dsdplus was it the fastlane or public realease? I want to figure out if this problem occurs on the fastlane version but I don't want to buy it knowing it doesn't work lol.
Tried it on 1.01 (public release), 2.39 and 2.71. None of them decoded.

Mike

PS: Not buying it doesn't give the author any incentive to fix it if you are the only one claiming to have the issue
__________________
Mike / AA8IA
PSR800/PRO197/BCD436HP/BCD536HP

If I PM you about a submission, please reply promptly or your submission may be rejected.
Reply With Quote
  #20 (permalink)  
Old 01-14-2018, 1:58 AM
Member
   
Join Date: Jun 2015
Posts: 20
Default

Quote:
Originally Posted by LD723 View Post
The link for download is at the bottom of the article https://www.rtl-sdr.com/receiving-ds...d-1-7-windows/
You also have to make a batch file with the commands for dsd to launch.
Hi LD723

Can you post what the contents of the batch file are for the 1.7 port version please.

Thanks
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 2:15 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All information here is Copyright 2012 by RadioReference.com LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2015 by RadioReference.com LLC Privacy Policy  |  Terms and Conditions