main@nw-digital-radio.groups.io

Re: Thumb dv audio breakup

beaupeppybrandypip@...

#1235

221ms sounds high.

According to pingtest we have 25ms ping, 20ms jitter (here in the UK).

If your getting no packet loss, then maybe try increasing the packet/audio buffering size (assuming the software has the option) to allow for the occassional longer delayed packets ?

Re: Thumb dv audio breakup

"John D. Hays" <john@...>

#1234

I don't have a definitive answer, but in VOIP applications, 36ms of Jitter is considered high.

"Jitter - This is measured in milliseconds and is created by some instability in your connection. It is a fluctuation in the signal such that it becomes out of sync or displaced from where it should be in the transmission. It is effectively a continuous variation in the delay of packet delivery. VoIP jitter can be tolerated up to 20ms to 30 ms." -- http://www.whichvoip.com/voip/speed_test/ppspeed.html

Some applications in the VOIP telephony world implement a 'jitter buffer' to try to smooth jitter out a bit (at the cost of added delay).

Unfortunately, the best thing is to try to find a way (through your ISP?) to reduce the jitter number.

Show quoted text

On Tue, Jan 5, 2016 at 10:12 AM, Les Norton gm4jnw@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:

Just done a test as suggested:

Packet loss 0%
Ping 221ms
Jitter 36ms

What do you think?

On 5 Jan 2016, at 18:05, 'John D. Hays' john@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:

A tool everyone should get familiar with

http://www.pingtest.net/

Packet loss and jitter are your enemies. These are things that can only be fixed on your network connection / ISP.

The connection between the computer and the ThumbDV or PiDV is simply a serial port that passes packets back and forth. PCM (Audio) to AMBE or AMBE to PCM (Audio), everything else is up to the application (which in turn uses services from the operating system).

On Tue, Jan 5, 2016 at 9:33 AM, Les Norton gm4jnw@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:

I did some tests and here are the details:
here are 3 tests i did:

1) transmit 8 seconds, return 6.8 seconds
2) transmit 11.3 secs return 7.8 seconds
3) transmit 15.1 secs return 11.1 seconds

So you can see the reason for the dropped words on transmission

Also restarted the router in case it was an internet issue.
Have pretty slow internet speed 2.2mbps but it never caused issues with my previous dongle.

I agree could be packet loss - have also shared the info with the retailer

Or is it a matter of returning it?

--

John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223

--

John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223

Re: Thumb dv audio breakup

Les Norton <gm4jnw@...>

#1233

Just done a test as suggested:

Packet loss 0%

Ping 221ms

Jitter 36ms

What do you think?

Show quoted text

On 5 Jan 2016, at 18:05, 'John D. Hays' john@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:

A tool everyone should get familiar with

http://www.pingtest.net/

Packet loss and jitter are your enemies. These are things that can only be fixed on your network connection / ISP.

The connection between the computer and the ThumbDV or PiDV is simply a serial port that passes packets back and forth. PCM (Audio) to AMBE or AMBE to PCM (Audio), everything else is up to the application (which in turn uses services from the operating system).

On Tue, Jan 5, 2016 at 9:33 AM, Les Norton gm4jnw@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:

I did some tests and here are the details:
here are 3 tests i did:

1) transmit 8 seconds, return 6.8 seconds
2) transmit 11.3 secs return 7.8 seconds
3) transmit 15.1 secs return 11.1 seconds

So you can see the reason for the dropped words on transmission

Also restarted the router in case it was an internet issue.
Have pretty slow internet speed 2.2mbps but it never caused issues with my previous dongle.

I agree could be packet loss - have also shared the info with the retailer

Or is it a matter of returning it?

--

John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223

Re: Thumb dv audio breakup

"John D. Hays" <john@...>

#1232

A tool everyone should get familiar with

http://www.pingtest.net/

Packet loss and jitter are your enemies. These are things that can only be fixed on your network connection / ISP.

The connection between the computer and the ThumbDV or PiDV is simply a serial port that passes packets back and forth. PCM (Audio) to AMBE or AMBE to PCM (Audio), everything else is up to the application (which in turn uses services from the operating system).

Show quoted text

On Tue, Jan 5, 2016 at 9:33 AM, Les Norton gm4jnw@... [UniversalDigitalRadio] <UniversalDigitalRadio@...m> wrote:

I did some tests and here are the details:
here are 3 tests i did:

1) transmit 8 seconds, return 6.8 seconds
2) transmit 11.3 secs return 7.8 seconds
3) transmit 15.1 secs return 11.1 seconds

So you can see the reason for the dropped words on transmission

Also restarted the router in case it was an internet issue.
Have pretty slow internet speed 2.2mbps but it never caused issues with my previous dongle.

I agree could be packet loss - have also shared the info with the retailer

Or is it a matter of returning it?

--

John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223

Re: Thumb dv audio breakup

Les Norton <gm4jnw@...>

#1231

I did some tests and here are the details:

here are 3 tests i did:

1) transmit 8 seconds, return 6.8 seconds
2) transmit 11.3 secs return 7.8 seconds
3) transmit 15.1 secs return 11.1 seconds

So you can see the reason for the dropped words on transmission

Also restarted the router in case it was an internet issue.

Have pretty slow internet speed 2.2mbps but it never caused issues with my previous dongle.

I agree could be packet loss - have also shared the info with the retailer

Show quoted text

On 5 Jan 2016, at 16:05, Kelly Keeton kellykeeton@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:

What's your internet quality and uplink? Could just be simple packet loss

Sent from a mobile device.

On Jan 5, 2016, at 6:44 AM, gm4jnw@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:

am at a loss
Got the dongle today and got it working with buster and win dv (one macbook pro and one windows 10 laptop)
Every one i spoke to complained of audio breakup - did adjustments on built in mike on both computers and even used a plantronics external mike but nothing helped. Audio in seem reasonably good.

Anyone else had this problem?

Or is it a matter of returning it?

Re: Thumb dv audio breakup

Kelly Keeton <kellykeeton@...>

#1229

What's your internet quality and uplink? Could just be simple packet loss

Sent from a mobile device.

Show quoted text

On Jan 5, 2016, at 6:44 AM, gm4jnw@... [UniversalDigitalRadio] <UniversalDigitalRadio@...m> wrote:

am at a loss
Got the dongle today and got it working with buster and win dv (one macbook pro and one windows 10 laptop)
Every one i spoke to complained of audio breakup - did adjustments on built in mike on both computers and even used a plantronics external mike but nothing helped. Audio in seem reasonably good.

Anyone else had this problem?

Or is it a matter of returning it?

Re: Thumb dv audio breakup

Les Norton <gm4jnw@...>

#1230

Have been doing testing and the problem seems to be packet losses.

Eg: when calling on REF001E

3 calls one after the other.

1) transmit 8 seconds, return 6.8 seconds

2) transmit 11.3 secs return 7.8 seconds

3) transmit 15.1 secs return 11.1 seconds

So not sure what the fix is.

Show quoted text

On 5 Jan 2016, at 14:44, gm4jnw@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:

am at a loss
Got the dongle today and got it working with buster and win dv (one macbook pro and one windows 10 laptop)
Every one i spoke to complained of audio breakup - did adjustments on built in mike on both computers and even used a plantronics external mike but nothing helped. Audio in seem reasonably good.

Anyone else had this problem?

Or is it a matter of returning it?

Re: thumbdv problems

"Randall C. Wilkinson" <randy@...>

#1228

On two Windows 10 desktop computers I use, I had the same problem. When you try to start WinDV, it stops working abruptly and exits, giving no reason for why. Windows just says DVnode has stopped working.

I fixed it by upgrading to the latest FTDI chip drivers from here: http://www.ftdichip.com/Drivers/D2XX.htm

Randy-W4LKS
Spokane, WA

Show quoted text

On 1/5/2016 3:59 AM, gm4jnw@... [UniversalDigitalRadio] wrote:

Windows 10

More straight forward WinDV installs fine

all drivers install fine usb assigned to Com10 - unplug it and plug it in all ok.

Try to run DV node and it crashes and just says DV node has stopped working (thanks windows it never started) windows will close the program and notify you of a solution BUT it doesn't

I think its an issue with windows 10 but i cannot revert back to windows 7 as I'm too late.

Re: thumbdv problems

Jeremy McDermond <mcdermj@...>

#1227

On Jan 5, 2016, at 3:59 AM, gm4jnw@... [UniversalDigitalRadio] <UniversalDigitalRadio@...> wrote:
Firstly the mac as thats my preferred option.

Followed the step by step guide on the read me rtf file - i.e.: compiling in terminal etc

all directories seem to be in place when i plug in the thumbdv while buster is open it picks up /dev/cu.usbserial-DA01PT5C

so i presume its picking up the usb device ok.

The thumbdv flashes when plugging it in but only once and the led does not stay on.

at the bottom of buster it say

Product id: vocoder not found

Version: vocoder not found

I have been through al l the instructions about making directories etc etc and i can't find a fault

Am I missing something - shame its not a simple application installI’m really lost here.  What readme RTF file are you talking about?  Unless I’m going senile at a very early age, I don’t recall shipping any RTF files with Buster.

It *IS* a simple application install.  I don’t know where you’re getting the idea it isn’t.  MacOS X “Mavericks” and “El Capitan” both come with the appropriate drivers already installed.  You do not need to install any other drivers.  Otherwise it’s just downloading it from the App Store and launching it.  There should be no compiling or command line anything involved.

--
Jeremy McDermond (NH6Z)
Xenotropic Systems
mcdermj@...

Thumb dv audio breakup

gm4jnw@...

#1226

am at a loss

Got the dongle today and got it working with buster and win dv (one macbook pro and one windows 10 laptop)

Every one i spoke to complained of audio breakup - did adjustments on built in mike on both computers and even used a plantronics external mike but nothing helped. Audio in seem reasonably good.

Anyone else had this problem?

Or is it a matter of returning it?

thumbdv problems

gm4jnw@...

#1225

Have got the latest DV3000U thumbdv - had an earlier one when they first came out but got tempted and sold it but did use it HOWEVER.

Since i had the old one i have updated to windows 10 on one laptop and downloaded Buster on my macbook pro with el captain on 10.11.2

Firstly the mac as thats my preferred option.

Followed the step by step guide on the read me rtf file - i.e.: compiling in terminal etc

all directories seem to be in place when i plug in the thumbdv while buster is open it picks up /dev/cu.usbserial-DA01PT5C

so i presume its picking up the usb device ok.

The thumbdv flashes when plugging it in but only once and the led does not stay on.

at the bottom of buster it say

Product id: vocoder not found

Version: vocoder not found

I have been through all the instructions about making directories etc etc and i can't find a fault

Am I missing something - shame its not a simple application install

More straight forward WinDV installs fine

all drivers install fine usb assigned to Com10 - unplug it and plug it in all ok.

Try to run DV node and it crashes and just says DV node has stopped working (thanks windows it never started) windows will close the program and notify you of a solution BUT it doesn't

I think its an issue with windows 10 but i cannot revert back to windows 7 as I'm too late.

Would appreciate any help - thanks

My personal email address is: gm4jnw@...

I don't want to contact Waters and Stanton yet as I'm sure its not an issue with the device

Re: Buster Source Code

beaupeppybrandypip@...

#1224

Jeremys message was not correctly formated.

Try ..

https://github.com/mcdermj/buster

Re: Buster Source Code

"John D. Hays" <john@...>

#1223

Working here. Try again?

Show quoted text

On Dec 24, 2015 3:03 PM, "ted.freitas@... [UniversalDigitalRadio]" <UniversalDigitalRadio@...> wrote:

Getting 404's when trying to access, did it move?

Re: Buster Source Code

ted.freitas@...

#1222

Getting 404's when trying to access, did it move?

Buster Source Code

Jeremy McDermond <mcdermj@...>

#1221

I have released the Buster source code under the Community Development and Distribution License today.  Keep in mind that the code is still pretty raw and you’ll see a lot of “XXX” comments along the way.  You can access the code through GitHub at https://github.com/mcdermj/buster.  Please read the README.md before you submit code to the project.

If you have any issues, please look at the issue tracker on GitHub (https://github.com/mcdermj/buster/issues).  There are some known issues there that didn’t get triaged for the 1.0 release, so check on them before you submit another issue.  If you have new issues, please submit them there because it allows me to triage and track them so they don’t get lost.

There’s also a wiki up there (https://github.com/mcdermj/buster/wiki) and folks should feel free to contribute content.

Thanks to everyone for their warm support, and hopefully the code is illuminating to some folks.  If you have architecture questions, please don’t hesitate to drop me an email.
--
Jeremy McDermond (NH6Z)
Xenotropic Systems
mcdermj@...