[App_rpt-users] Simulcast buffer value issue

Joe Moskalski kc2irv at gmail.com
Thu Feb 22 16:52:16 UTC 2018


Hamvoip

On Feb 22, 2018 11:48 AM, "Sam Nabkey" <sam.nabkey at gmail.com> wrote:

> DIAL or Hamvoip?
>
> On Feb 22, 2018 10:52, "Joe Moskalski" <kc2irv at gmail.com> wrote:
>
>> I do not think server horsepower is the issue. I am running three TX/RX
>> simulcast sites off of a Pi3 and when I look at the system resources used
>> it isn't working very hard.
>>
>> On Thu, Feb 22, 2018 at 10:47 AM, Jesse Lloyd <ve7lyd at gmail.com> wrote:
>>
>>> I should add to my last post that I use a dual NIC server. One RTCM is
>>> connected directly to the server to provide timing only. The other NIC ties
>>> to the network with the other RTCM's that have radios attached.
>>>
>>> Cheers,
>>> Jesse
>>>
>>> On Feb 22, 2018, at 6:43 AM, ARS W5OMR <ars.w5omr at gmail.com> wrote:
>>>
>>> That's probably a latency in the audio section of the PC being used.
>>>
>>> A buddy had the same issues while operating his HF station, remote.
>>> After a few minutes, the latency grew and grew.... He used WWV (he lives in
>>> West Central OK) as a time base...
>>>
>>> His solution was to get a more "robust" (read: Turtle Beach) sound card.
>>> This was in his desktop at the house.
>>>
>>> It might not be a software problem, as much as a Hardware issue.
>>>
>>> I don't remember if you said this was on an RTCM or not but I know one
>>> is involved.
>>>
>>> I believe I would check more on all audio devices involved.
>>>
>>>
>>> On Feb 22, 2018 12:11 AM, "Hayden Honeywood" <haydenph91 at gmail.com>
>>> wrote:
>>>
>>>> I've made a YouTube video with clips from a single conversation I had
>>>> this morning on the repeater. The audio was recorded on my dashcam.
>>>>
>>>> As can be heard in the video, when I start the conversation, the audio
>>>> delay is nil, or very little when unkeying. However, by the time I'm
>>>> finished (I think the conversation lasted about 20 minutes) the audio delay
>>>> is out to 4 or 5 words!
>>>>
>>>> We were both using the same repeater. We have a repeater linked in from
>>>> another location. I've noticed when talking to someone via that method, the
>>>> audio delay issue does not build up so quickly.
>>>>
>>>> Hopefully this explains a bit better the issue I'm having.
>>>>
>>>> https://youtu.be/KG3GgaHVWbI
>>>>
>>>> Regards
>>>> Hayden VK7HH
>>>>
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>>
>>
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>
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