DSD 1.3 and mbelib 1.2 released

[CrazyCalifornian]

I think you'd be much more successful trying to port DSD than getting that old QB thing working. I looked for it and I think I got rid of it. I don't have it here on this PC, but I might at home. At any rate, don't hold your breath getting that QB thing to decode anything other than the file it came with.
-AZ

I was just interested in How it worked
Someone was kind enough to email it to me, so I'll be checking it out soon...

Adapting DSD to Windows shouldn't be that big of a problem...

Jay

 

[AZScanner]

I was just interested in How it worked
Someone was kind enough to email it to me, so I'll be checking it out soon...

Adapting DSD to Windows shouldn't be that big of a problem...

Jay

You're the man if you can git 'er done! I'd love to see it, that'd be great.

-AZ

 

[SCPD]

Would your old capture.cpp serve as a good starting point for this? With the long weekend coming up, maybe I could take a crack at it.

This is not a technical issue. It is a legal one. Why do you think DSD author is so anonymous?

 

[AZScanner]

This is not a technical issue. It is a legal one. Why do you think DSD author is so anonymous?

Forgive my ignorance, but perhaps you misunderstood my question. It wasn't a matter of me asking you to release it or anything like that (I'm sure you've already written it yourself hence the comment that it can be done). It was based on my (admittedly C++ noob) assumptions:

1. The bit of code required to take the discriminator audio from the mic jack and turn it into 1's and 0's for decoding purposes, as it is currently written in DSD, won't work for windows.

2. Any potential windows port needs to have that part of the code rewritten.

3. The capture.cpp program written by you way back in the day could be used as a starting point for that updated code.

All I was asking for was validation of the assumptions listed above before attempting anything so I don't waste my time. As I've said to another poster, if it was my intent to release my own decoder, I'd license the codec from DVSI directly and stop wasting time with this open source stuff. And I'd charge for it too, just because I could at that point. I have no interest in doing either. I just want to see if DSD can be ported to Windows and if I could do it myself.

-AZ

 

[MattSR]

I just want to see if DSD can be ported to Windows and if I could do it myself.

Only you can answer this question. The three issues you raised are all trivially solved programming problems that have been done many times before.

 

[SCPD]

perhaps you misunderstood my question. It wasn't a matter of me asking you to release it or anything like that

Sorry Phil. That's exactly what I thought you were asking.

Go to codeproject.com and search for "WAVEHDR". Plenty of Windows wave audio code samples there.

 

[AZScanner]

Sorry Phil. That's exactly what I thought you were asking.

Go to codeproject.com and search for "WAVEHDR". Plenty of Windows wave audio code samples there.

OK, I'll check it out. Thanks!

(Of course if a certain file were to suddenly appear at a rapidshare or megaupload address and a certain link to that file just happened to appear in my pm box mum would certainly be the word).

-AZ

 

[AZScanner]

Only you can answer this question. The three issues you raised are all trivially solved programming problems that have been done many times before.

Sigh.

They're not issues. They were assumptions I was trying to validate.

Now all I need is the TIME to do it. Got a full plate right now both at work and at home, and I haven't touched C code in YEARS - I mean YEARS, man.

-AZ

 

[ilgrant]

Mototrbo

I have successfully decoded a couple of Mototrbo systems in my area. I have run into an issue which is probably to be expected. Occasionally I do get gibberish and it occurred to me that I am trying to hear 2 slots at the same time.

My question to DSDAuthor or anyone else would be is it possible to split the slots into a Left and Right Channels for systems that have stereo?

Thanks to DSDAuthor for all the hard work.

 

[KC1UA]

More success at P25 decoding, my best by far yet to date. The components? A Hewlett Packard T5720 Thin Client booting with the Ubuntu Flash Drive and using the onboard sound with microphone input and the latest DSD and MBELIB. With audio level set to about 11% - 13% I am getting near error free P25 decoding. I was shocked when this of all setups worked the best yet. I am using a patch cable with the aforementioned resistor/capacitor inline and the discriminator output of the Icom IC-PCR1000. As I type this I am decoding the Portsmouth NH PD conventional P25 repeater on 154.740, which is at least 80 miles from my location, nearly error free.

MotoTrbo is a bit more of a challenge; bottom line is I just don't have a strong enough signal to work with here. But nonetheless I am amazed that this very modest setup is doing as well as it is. It's the winner for me thus far!

The discussion with porting to Windows is interesting and I'd look forward to trying it, but I'll state again that I really have no need for it with the Ubuntu system installed on the flash drive.

 

[wwhitby]

My problem has been that the one computer I have that has BIOS that will allow a USB boot device won't recognize the peristant Ubuntu thumb drive I created. I tried everything I could find to get it to work, with no luck. I did borrow another computer, and was able to boot from that thumb drive and install the software, but I had to give that computer back before I could get the software working.

So, my only options are to buy another computer sometime next year (when I have the money) or to wait for a Windows version to appear. Personally, i'm hoping for a Windows version

Warren

 

[offsite]

Hi Warren,

Maybe try another thumb drive.

We first used a PNY brand 8 GB stick, but found only one of the four PC's here would boot from it.

Then I read somewhere that media can actually make a difference in bootability !??.

So I tried a 4 GB SanDisk Cruzer and found three of our four machines boot from it.

Guessing it's one of those 'conjectural facts vs actual theories' kind of things...

-rb-

 

[wwhitby]

Maybe try another thumb drive.

I tried using five different thumb drives of varying sizes and manufacturers (Kingston, PNY, San Disk, and Transcend) but none of them would work. It would start to boot, but then give a boot error.

I tested two of the thumb drives on a different computer that I had borrowed, and they both booted fine on an HP computer. For some reason my Dell Inspiron didn't like any of them.

Warren

 

[KC1UA]

I've been 100% successful with the Sandisk Cruzer 4GB, which of course also includes the thin client I mentioned in my last post. Have you tried that specific model Warren? I've also got XoScope installed on it, the latest DSD and MBELIB, and X11 VNC so I can remote in. I can run Firefox and surf with it, and install Firefox add-ons. It's worked like a champ for me, but that particular model of thumb drive was suggested, and I believe by Offsite if I remember correctly.

 

[wwhitby]

Yes, I bought a new San Disk 8GB thumb drive so I could create a persistant thumb drive with my old 4GB San Disk. That was one of the ones that would boot on the borrowed HP, but not on my Dell.

I don't think its the thumb drive. I suspect its something with the Ubuntu boot that my Dell Inspiron does not like.

Warren

 

[offsite]

Here's a summary of the weirdness here: (both drives are Ubuntu 10.04, bootable and persistent)

                   rb's Dell Vostro    Linda's Dell Vostro    Dell D600 laptop    Acer Aspire One

4GB SanDisk                yes                    no                    yes                  yes

8GB PNY Attache            yes                    no                     no                  no

??

 

[offsite]

That format looked so good in the reply box... but got lost in translation, apparently.

The bottom line is the 8GB works in one Vostro and not in the others, while the 4GB works in all but one Vostro.

Here's a summary of the weirdness here: (both drives are Ubuntu 10.04, bootable and persistent)


rb's Dell Vostro Linda's Dell Vostro Dell D600 laptop Acer Aspire One

4GB SanDisk yes no yes yes

8GB PNY Attache yes no no no



??

 

[Jay911]

It looked fine in the topic reply notification too. Just put the word "code" in square brackets ahead of it and "/code" the same way behind it and it should work.

I haven't had time/inclination to play with DSD again because I think my discriminator tap is to blame for the crummy results I've had. I'm not up to re-tapping my radio and I don't have a source for caps or resistors anyway.

 

[SCPD]

I tried the {code} brackets on offsite's table. It helped a little.

 

[MattSR]

Can we start a new thread for this? Its moved from DSD to memory sticks..