USB fob choppy/stuttering audio

Rob_Noll · March 31, 2019, 2:26pm

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

Bob_Pyke · March 31, 2019, 3:58pm

I don’t know if this fits your situation, but the only time I’ve had choppy audio is when something in asterisk or Linux is unhappy; most likely asterisk. I’d check your USB related settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

···

On Mar 31, 2019, at 7:26 AM, Rob Noll rob@nollmail.com wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

App_rpt-users mailing list
App_rpt-users@lists.allstarlink.org
http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

Bob_Pyke · March 31, 2019, 4:01pm

PS. Also make sure the USB interface matches. I’ve had USB issues cause this choppiness, fixed by changing ports. (use lsusb)

Thanks,

Bob

K6ECM

73

···

On Mar 31, 2019, at 8:58 AM, Bob Pyke k6ecm1@gmail.com wrote:

I don’t know if this fits your situation, but the only time I’ve had choppy audio is when something in asterisk or Linux is unhappy; most likely asterisk. I’d check your USB related settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 7:26 AM, Rob Noll rob@nollmail.com wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

App_rpt-users mailing list
App_rpt-users@lists.allstarlink.org
http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

Rob_Noll · March 31, 2019, 4:03pm

On that note Bob, do you know the correct format for the port line in the usb tune config file?

···

On Mar 31, 2019, at 8:58 AM, Bob Pyke k6ecm1@gmail.com wrote:

I don’t know if this fits your situation, but the only time I’ve had choppy audio is when something in asterisk or Linux is unhappy; most likely asterisk. I’d check your USB related settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 7:26 AM, Rob Noll rob@nollmail.com wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

App_rpt-users mailing list
App_rpt-users@lists.allstarlink.org
http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

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You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

Joe_C · March 31, 2019, 4:07pm

Good morning,

What radio are you using with your node? I know when I was using the baofeng 82 dual bander I had to have the USB setup on USBinvert where if I used the baofeng 888 it would just be set to USB. So play with that setting and see if it helps.

73,

Joe

K2OL

···

On Mar 31, 2019, at 11:58 AM, Bob Pyke k6ecm1@gmail.com wrote:

I don’t know if this fits your situation, but the only time I’ve had choppy audio is when something in asterisk or Linux is unhappy; most likely asterisk. I’d check your USB related settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 7:26 AM, Rob Noll rob@nollmail.com wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

App_rpt-users mailing list
App_rpt-users@lists.allstarlink.org
http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

Bob_Pyke · March 31, 2019, 4:08pm

Sorry, not with ASL. I found it best to let it set it, but I check to make sure. ASL is much better than the original based on CentOS. I’ve had the Linux mix it up, but not had that issue since DIAL and ASL.

As Jim has said many times, “friends don’t let friends do USB”

Thanks,

Bob

K6ECM

73

···

On Mar 31, 2019, at 9:03 AM, Rob Noll rob@nollmail.com wrote:

On that note Bob, do you know the correct format for the port line in the usb tune config file?

**From: **
Bob Pyke k6ecm1@gmail.com
**Sent: **
March 31, 2019 12:02:09
**To: **
Users of Asterisk app_rpt app_rpt-users@lists.allstarlink.org
**Subject: **
Re: [App_rpt-users] USB fob choppy/stuttering audio

PS. Also make sure the USB interface matches. I’ve had USB issues cause this choppiness, fixed by changing ports. (use lsusb)

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 8:58 AM, Bob Pyke k6ecm1@gmail.com wrote:

I don’t know if this fits your situation, but the only time I’ve had choppy audio is when something in asterisk or Linux is unhappy; most likely asterisk. I’d check your USB related settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 7:26 AM, Rob Noll rob@nollmail.com wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

App_rpt-users mailing list
App_rpt-users@lists.allstarlink.org
http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

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To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”

You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

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To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

Mike · March 31, 2019, 4:15pm

Try other FOB with a cm108

…mike/kb8jnm

···

On 3/31/2019 11:58 AM, Bob Pyke wrote:

  I don’t know if this fits your situation, but the only time I’ve
had choppy audio is when something in asterisk or Linux is
unhappy; most likely asterisk. I’d check your USB related settings
(usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

    On Mar 31, 2019, at 7:26 AM, Rob Noll <rob@nollmail.com        >

wrote:

Good morning all,

          I’m trying to set up an AllStar node
using a USB fob based on the CM119 chip. I’m having
issues with choppy/stuttering audio, particularly on
telemetry. It’s bad enough that it renders the CW ID
meaningless.

          My original thought was lack of CPU
power, but I have tried it on a Raspberry Pi 2, Pi 3, and
several virtual machines on a quad-core PC with identical
results. Also, the choppiness is NOT as bad when using
the full USB driver instead of SimpleUSB, which I believe
conclusively rules out CPU power.

          I’ve also tried a powered USB hub,
thinking that the USB device was not receiving enough
power, with no improvement.

          I’ve used the Android mobile app to
connect to the node, and the telemetry does not seem to be
choppy when listening to it over the app. While I need to
do some more testing to say this conclusively, I do
believe at this point that my issue is narrowed down to
the USB fob itself and/or the specific audio stream being
sent to the device.

          I’m currently searching for a way to
alter the sample rate that ASL is sending the audio to the
device in.

          Has anyone experienced this, and does

anyone have any suggestions?

Thanks and 73,

Rob, WX1N

      App_rpt-users mailing list

      App_rpt-users@lists.allstarlink.org

      [http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users](http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users)



      To unsubscribe from this list please visit [http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users](http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users)
        and scroll down to the bottom of the page. Enter your email

address and press the “Unsubscribe or edit options button”

                  You do not need a password to unsubscribe, you can do it

via email confirmation. If you have trouble unsubscribing,
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_______________________________________________
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App_rpt-users@lists.allstarlink.org http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

Rob_Noll · March 31, 2019, 4:16pm

I did let ASL set it, but without knowing the syntax of the string (in my case, “devstr=2-1:1.0”), how do I check it to make sure? I’m confused on how to follow the suggestion to change ports or verify the correct format.

As far as not using USB… I’m not aware of any other viable option for the project at hand, but I’m open to any suggestions.

···

From: App_rpt-users app_rpt-users-bounces@lists.allstarlink.org On Behalf Of Bob Pyke
Sent: Sunday, March 31, 2019 12:09
To: Users of Asterisk app_rpt app_rpt-users@lists.allstarlink.org
Subject: Red: [App_rpt-users] USB fob choppy/stuttering audio

Sorry, not with ASL. I found it best to let it set it, but I check to make sure. ASL is much better than the original based on CentOS. I’ve had the Linux mix it up, but not had that issue since DIAL and ASL.

As Jim has said many times, “friends don’t let friends do USB”

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 9:03 AM, Rob Noll rob@nollmail.com wrote:

On that note Bob, do you know the correct format for the port line in the usb tune config file?

**From: **

Bob Pyke k6ecm1@gmail.com

**Sent: **

March 31, 2019 12:02:09

**To: **

Users of Asterisk app_rpt app_rpt-users@lists.allstarlink.org

**Subject: **

Re: [App_rpt-users] USB fob choppy/stuttering audio

PS. Also make sure the USB interface matches. I’ve had USB issues cause this choppiness, fixed by changing ports. (use lsusb)

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 8:58 AM, Bob Pyke k6ecm1@gmail.com wrote:

I don’t know if this fits your situation, but the only time I’ve had choppy audio is when something in asterisk or Linux is unhappy; most likely asterisk. I’d check your USB related settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 7:26 AM, Rob Noll rob@nollmail.com wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

App_rpt-users mailing list
App_rpt-users@lists.allstarlink.org
http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

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Rob_Noll · March 31, 2019, 4:18pm

Unfortunately, I don’t have one. I’d rather not start sinking money into replacing things without knowing the root cause.

···

From: App_rpt-users app_rpt-users-bounces@lists.allstarlink.org On Behalf Of Mike
Sent: Sunday, March 31, 2019 12:15
To: app_rpt-users@lists.allstarlink.org
Subject: Re: [App_rpt-users] USB fob choppy/stuttering audio

Try other FOB with a cm108

…mike/kb8jnm

On 3/31/2019 11:58 AM, Bob Pyke wrote:

I don’t know if this fits your situation, but the only time I’ve had choppy audio is when something in asterisk or Linux is unhappy; most likely asterisk. I’d check your USB related settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 7:26 AM, Rob Noll rob@nollmail.com wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

App_rpt-users mailing list
App_rpt-users@lists.allstarlink.org
http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”
You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

_______________________________________________

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kuggie · March 31, 2019, 4:20pm

CM119, CM119A, or CM119B?

···

On 3/31/2019 10:26 AM, Rob Noll wrote:

Good morning all,

      I’m trying to set up an AllStar node using
a USB fob based on the CM119 chip.

Mike · March 31, 2019, 4:22pm

If you have put the same FOB in as many machines for a test as
you say you have, with same results…

…‘it’s the FOB’.

Use one like it or one different.

…mike/kb8jnm

···

On 3/31/2019 12:18 PM, Rob Noll wrote:

        Unfortunately,
I don’t have one. I’d rather not start sinking money into
replacing things without knowing the root cause.

From: App_rpt-users
Mike
Sunday, March 31, 2019 12:15
Re: [App_rpt-users] USB fob
choppy/stuttering audio

Try other FOB with a cm108

…mike/kb8jnm

On 3/31/2019 11:58 AM, Bob Pyke wrote:

        I don’t know
if this fits your situation, but the only time I’ve had
choppy audio is when something in asterisk or Linux is
unhappy; most likely asterisk. I’d check your USB related
settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

          On Mar 31, 2019, at 7:26 AM, Rob Noll <rob@nollmail.com              >

wrote:

Good morning all,

            I’m trying to set up an AllStar node
using a USB fob based on the CM119 chip. I’m having
issues with choppy/stuttering audio, particularly on
telemetry. It’s bad enough that it renders the CW ID
meaningless.

            My original thought was lack of CPU
power, but I have tried it on a Raspberry Pi 2, Pi 3,
and several virtual machines on a quad-core PC with
identical results. Also, the choppiness is NOT as bad
when using the full USB driver instead of SimpleUSB,
which I believe conclusively rules out CPU power.

            I’ve also tried a powered USB hub,
thinking that the USB device was not receiving enough
power, with no improvement.

            I’ve used the Android mobile app to
connect to the node, and the telemetry does not seem to
be choppy when listening to it over the app. While I
need to do some more testing to say this conclusively, I
do believe at this point that my issue is narrowed down
to the USB fob itself and/or the specific audio stream
being sent to the device.

            I’m currently searching for a way to
alter the sample rate that ASL is sending the audio to
the device in.

            Has anyone experienced this, and does

anyone have any suggestions?

Thanks and 73,

Rob, WX1N

            App_rpt-users mailing list

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Rob_Noll · March 31, 2019, 4:25pm

Well here’s the odd thing – I put the fob in a Windows machine and used an earpiece while streaming audio to it as a regular sound card. It seemed to handle it fine. So the issue does not seem to be a bad fob, and the issue does not seem to be asterisk (as evidenced by using the Android app to listen to the audio stream, where it sounds fine). It seems to be specifically related to the asterisk audio stream to the USB device. I’d really like to try Bob’s suggestion of double checking the USB port configuration, but I can’t find any info on the syntax of the device string. I’d also like to try changing the sampling rate asterisk is using for the USB audio stream, but I haven’t been able to find any info on how to change it.

···

From: App_rpt-users app_rpt-users-bounces@lists.allstarlink.org On Behalf Of Mike
Sent: Sunday, March 31, 2019 12:22
To: app_rpt-users@lists.allstarlink.org
Subject: Re: [App_rpt-users] USB fob choppy/stuttering audio

If you have put the same FOB in as many machines for a test as you say you have, with same results…

…‘it’s the FOB’.

Use one like it or one different.

…mike/kb8jnm

On 3/31/2019 12:18 PM, Rob Noll wrote:

Unfortunately, I don’t have one. I’d rather not start sinking money into replacing things without knowing the root cause.

From: App_rpt-users app_rpt-users-bounces@lists.allstarlink.org On Behalf Of Mike
Sent: Sunday, March 31, 2019 12:15
To: app_rpt-users@lists.allstarlink.org
Subject: Re: [App_rpt-users] USB fob choppy/stuttering audio

Try other FOB with a cm108

…mike/kb8jnm

On 3/31/2019 11:58 AM, Bob Pyke wrote:

I don’t know if this fits your situation, but the only time I’ve had choppy audio is when something in asterisk or Linux is unhappy; most likely asterisk. I’d check your USB related settings (usbradio or simpleusb).

Thanks,

Bob

K6ECM

73

On Mar 31, 2019, at 7:26 AM, Rob Noll rob@nollmail.com wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip. I’m having issues with choppy/stuttering audio, particularly on telemetry. It’s bad enough that it renders the CW ID meaningless.

My original thought was lack of CPU power, but I have tried it on a Raspberry Pi 2, Pi 3, and several virtual machines on a quad-core PC with identical results. Also, the choppiness is NOT as bad when using the full USB driver instead of SimpleUSB, which I believe conclusively rules out CPU power.

I’ve also tried a powered USB hub, thinking that the USB device was not receiving enough power, with no improvement.

I’ve used the Android mobile app to connect to the node, and the telemetry does not seem to be choppy when listening to it over the app. While I need to do some more testing to say this conclusively, I do believe at this point that my issue is narrowed down to the USB fob itself and/or the specific audio stream being sent to the device.

I’m currently searching for a way to alter the sample rate that ASL is sending the audio to the device in.

Has anyone experienced this, and does anyone have any suggestions?

Thanks and 73,

Rob, WX1N

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Rob_Noll · March 31, 2019, 4:45pm

CM119A.

···

From: Kevin Custer kuggie@kuggie.com
Sent: Sunday, March 31, 2019 12:20
To: Users of Asterisk app_rpt app_rpt-users@lists.allstarlink.org; Rob Noll rob@nollmail.com
Subject: Re: [App_rpt-users] USB fob choppy/stuttering audio

On 3/31/2019 10:26 AM, Rob Noll wrote:

Good morning all,

I’m trying to set up an AllStar node using a USB fob based on the CM119 chip.

CM119, CM119A, or CM119B?

eric.fort.listmail · March 31, 2019, 4:49pm

I have heard many times of the problems using usb with asterisk and app_rpt. So why does it seem that most everyone has gone this route against the above sage wisdom rather than using something more akin an e&m interface like the pci radio cards Jim designed and built or the interface boards that plugged into an fxs? Port and broke out e&m, providing keying by polarity reversal of the battery voltage. Both solutions work rock solid with no issues. Apparently usb not so much and apparently this is a long standing problem with usb. In thinking about this I’m also curious if the design files for the pci radio interface boards may be available as they’d likely be a good start for an update to a more current interface standard.

Eric

Af6ep

···

Rob_Noll · March 31, 2019, 5:01pm

I’m looking for assistance solving this issue, and particularly how to check the device string in the configuration file, and/or how to change the sample rate of the audio stream sent to USB.

I’m not sure why you chose to unload on me for what you seem to be claiming is a well known issue, but from my searching does not appear to be well publicized. Nor am I sure what I may have said that would cause antagonization. I was merely looking for some assistance with an issue that I hoped maybe others had encountered and knew of a cause or solution.

That said, here are some answers to your questions:

why does it seem that most everyone has gone this route against the above sage wisdom

Where is this sage wisdom? I’m new to ASL. I read the wiki page. I saw no warnings against USB, in fact, I there were links to USB devices.

rather than using something more akin an e&m interface like the pci radio cards Jim designed

I don’t know Jim, don’t know where to buy his products, and there are no PCI interfaces on a Raspberry Pi.

the interface boards that plugged into an fxs? Port and broke out e&m, providing keying by polarity reversal of the battery voltage

An fxs port is an analog telephone port, isn’t it? Again, not available on a Raspberry Pi, and although I’m sure I could come up with a way to key the transmitter in question based on a reverse polarity battery signal, that does not seem like a very straightforward undertaking.

Apparently usb not so much and apparently this is a long standing problem with usb

I disagree. I’ve used plenty of USB audio devices in the past with no problems whatsoever. In fact, this very device works fine when used as a sound card on a PC. So if there are any longstanding issues, it would appear from a cursory glance to be with asterisk’s passing of the audio.

···

From: App_rpt-users app_rpt-users-bounces@lists.allstarlink.org On Behalf Of Eric Fort
Sent: Sunday, March 31, 2019 12:49
To: Users of Asterisk app_rpt app_rpt-users@lists.allstarlink.org
Subject: Re: [App_rpt-users] USB fob choppy/stuttering audio

On Mar 31, 2019, at 9:08 AM, Bob Pyke k6ecm1@gmail.com wrote:

Sorry, not with ASL. I found it best to let it set it, but I check to make sure. ASL is much better than the original based on CentOS. I’ve had the Linux mix it up, but not had that issue since DIAL and ASL.

As Jim has said many times, “friends don’t let friends do USB”

Thanks,

Bob

K6ECM

73

I have heard many times of the problems using usb with asterisk and app_rpt. So why does it seem that most everyone has gone this route against the above sage wisdom rather than using something more akin an e&m interface like the pci radio cards Jim designed and built or the interface boards that plugged into an fxs? Port and broke out e&m, providing keying by polarity reversal of the battery voltage. Both solutions work rock solid with no issues. Apparently usb not so much and apparently this is a long standing problem with usb. In thinking about this I’m also curious if the design files for the pci radio interface boards may be available as they’d likely be a good start for an update to a more current interface standard.

Eric

Af6ep

kuggie · March 31, 2019, 5:23pm

Okay -

Not sure how to help then...

Kevin W3KKC

···

On 3/31/2019 12:45 PM, Rob Noll wrote:

CM119A.

*From:*Kevin Custer <kuggie@kuggie.com>
*Sent:* Sunday, March 31, 2019 12:20
*To:* Users of Asterisk app_rpt <app_rpt-users@lists.allstarlink.org>; Rob Noll <rob@nollmail.com>
*Subject:* Re: [App_rpt-users] USB fob choppy/stuttering audio

On 3/31/2019 10:26 AM, Rob Noll wrote:

    Good morning all,

    I’m trying to set up an AllStar node using a USB fob based on the
    CM119 chip.

CM119, CM119A, or CM119B?

KE6PCV · March 31, 2019, 5:46pm

Eric,

In the beginning USB was some what flakey with App_rpt.

Over the last several years USB it has become much more stable.

Given the choice of hardware for stability, the Quad PCI radio card wins, but the quad PCI card is no longer manufactured or sold. This is because of the price point. Hams did not want to spend the money for the 4 port PCI Quad card, when they can buy an $8 dollar USB sound fob and modify it to work. from my iPhone

···

Kb9mwr · April 1, 2019, 12:00am

What would be very beneficial to all is when you post a question on any list (be it Allstar or whatever); is to identify and share as much as you can in terms of software you are running as well as hardware.

Example:

ASL 1.01 Raspbian Stretch Image on a Raspberry Pi 2b

Interface:

DMK USB URI

Radio:

Motorola Maxtrac

Issue:

Choppy Transmit audio

Since there are multiple combinations of software and hardware, folks really need to elaborate. No one is a mind reader. It would help if you are running the hamvoip image to post the question to their list at:

http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar

Since there are a number of differences between the distros and the fact theirs is closed, one cannot even begin to really guess at what the issues might be as as you cannot see what is different at a code level even if you share as much detail about your configs.

In my opinion each can have its place (one for more experienced users which to be able to roll their own/experiment and one for fairly new to Linux), however I would rather at some point see the two groups work together again. Till such a time users just need to realize what they are running, and who to go to for support, else it just creates a guessing game and further hostility.

Rob_Noll · April 1, 2019, 12:11am

Thanks for the reply. I didn’t wish to name the USB device as I didn’t want to appear to be giving it a bad name if it was not the culprit. Sorry you feel I didn’t give enough information to begin narrowing down the problem.

At a suggestion I received elsewhere, I tried HamVoIP to see if the issue was the same. The audio is perfect with HamVoIP. Since I’d rather implement this setup on an existing Debian system instead of having a dedicated device, I’d like to try to figure out a way to get ASL working with this device. One gentleman suggested looking into the device ID and making sure it was correct, however, he didn’t know how to determine the correct information. At any rate, some light reading has informed me that there seems to be some serious bad blood between HamVoIP and ASL, so since I’ve gotten to the point where the issues exists in one but not the other, and is therefore in the software and not the hardware (be it the cpu, radio, or interface), I suspect I’m better off trying to figure it out on my own.

Thanks to everyone who took the time to respond.

Rob

···

**From: **
Steve L kb9mwr@gmail.com
**Sent: **
March 31, 2019 20:01:00
**To: **
Users of Asterisk app_rpt app_rpt-users@lists.allstarlink.org
**Subject: **
Re: [App_rpt-users] USB fob choppy/stuttering audio
What would be very beneficial to all is when you post a question on any list (be it Allstar or whatever); is to identify and share as much as you can in terms of software you are running as well as hardware.

Example:

ASL 1.01 Raspbian Stretch Image on a Raspberry Pi 2b

Interface:

DMK USB URI

Radio:

Motorola Maxtrac

Issue:

Choppy Transmit audio

Since there are multiple combinations of software and hardware, folks really need to elaborate. No one is a mind reader. It would help if you are running the hamvoip image to post the question to their list at:

http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar

Since there are a number of differences between the distros and the fact theirs is closed, one cannot even begin to really guess at what the issues might be as as you cannot see what is different at a code level even if you share as much detail about your configs.

In my opinion each can have its place (one for more experienced users which to be able to roll their own/experiment and one for fairly new to Linux), however I would rather at some point see the two groups work together again. Till such a time users just need to realize what they are running, and who to go to for support, else it just creates a guessing game and further hostility.

App_rpt-users mailing list

App_rpt-users@lists.allstarlink.org

http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”

You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.

Kb9mwr · April 1, 2019, 12:47am

No problem and for future reference:

lsusb is a utility for displaying information about USB buses in the system and the devices connected to them.

https://linux.die.net/man/8/lsusb

···

On Sun, Mar 31, 2019 at 7:11 PM Rob Noll rob@nollmail.com wrote:

Thanks for the reply. I didn’t wish to name the USB device as I didn’t want to appear to be giving it a bad name if it was not the culprit. Sorry you feel I didn’t give enough information to begin narrowing down the problem.

At a suggestion I received elsewhere, I tried HamVoIP to see if the issue was the same. The audio is perfect with HamVoIP. Since I’d rather implement this setup on an existing Debian system instead of having a dedicated device, I’d like to try to figure out a way to get ASL working with this device. One gentleman suggested looking into the device ID and making sure it was correct, however, he didn’t know how to determine the correct information. At any rate, some light reading has informed me that there seems to be some serious bad blood between HamVoIP and ASL, so since I’ve gotten to the point where the issues exists in one but not the other, and is therefore in the software and not the hardware (be it the cpu, radio, or interface), I suspect I’m better off trying to figure it out on my own.

Thanks to everyone who took the time to respond.

Rob

**From: **
Steve L kb9mwr@gmail.com
**Sent: **
March 31, 2019 20:01:00
**To: **
Users of Asterisk app_rpt app_rpt-users@lists.allstarlink.org
**Subject: **
Re: [App_rpt-users] USB fob choppy/stuttering audio
What would be very beneficial to all is when you post a question on any list (be it Allstar or whatever); is to identify and share as much as you can in terms of software you are running as well as hardware.

Example:

ASL 1.01 Raspbian Stretch Image on a Raspberry Pi 2b

Interface:

DMK USB URI

Radio:

Motorola Maxtrac

Issue:

Choppy Transmit audio

Since there are multiple combinations of software and hardware, folks really need to elaborate. No one is a mind reader. It would help if you are running the hamvoip image to post the question to their list at:

http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar

Since there are a number of differences between the distros and the fact theirs is closed, one cannot even begin to really guess at what the issues might be as as you cannot see what is different at a code level even if you share as much detail about your configs.

In my opinion each can have its place (one for more experienced users which to be able to roll their own/experiment and one for fairly new to Linux), however I would rather at some point see the two groups work together again. Till such a time users just need to realize what they are running, and who to go to for support, else it just creates a guessing game and further hostility.

App_rpt-users mailing list

App_rpt-users@lists.allstarlink.org

http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users

To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”

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To unsubscribe from this list please visit http://lists.allstarlink.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the “Unsubscribe or edit options button”

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