[Elecraft] Audio latency issues in remote stations.

[Rich]

Paul, thanks.  The latency between the two keyers is a variable 
(depending on the locations of the two keyers), but the K1EL keyer 
latency should be some standard latency times two.  Any idea how much 
that standard keyer latency would be?

I'm interested in adding up the latency contribution from the basic 
components to understand how each part contributes to the total 
latency.  I'll initially be most interested in voice, but then in CW and 
perhaps eventually in RTTY.  This is mostly a thought exercise at the 
moment.

There is a kickstarter going for an audio interface with less than 3 
millisecond internal latency.  It is designed for internet music jam 
sessions.  My current equipment (including a router) seems to have about 
18 ms latency and a total latency between two players seems to need to 
be less than about 25-30 ms for two or more to play together across the 
internet.  So add internet latency and can't play with folks outside the 
West Coast. This all got me thinking about remoting radio and whether 
there might be a dual use for this "Jam Blaster".

Richard Hill
nu6t

On 3/2/2015 4:01 AM, Poul Erik Karlshøj (PKA) wrote:
> Richard
> If you operate CW you also must consider that there will be a contribution to the overall latency from the buffering in the key system. When you use two K1EL Winkeyers connected over IP you have additional latency because the local winkeyer is decided before the character is sent over IP.
> Still remote CW works just fine for most QSOs.
> Paul/OZ4UN
> Sendt fra min iPad
>
>> Den 28/02/2015 kl. 01.55 skrev "Rich" <rehill at ix.netcom.com>:
>>
>> I've been watching the discussions related to remote stations, and discussions related to latency.  Has anyone compared the latencies of various setups.  I think I understand that there is latency within a station (equipment) whether local or remote, and a latency in the communications lines between the local and remote station. I'm curious about the local or remote station equipment latency.
>>
>> Thanks.
>>
>> -- 
>> Richard Hill
>> NU6T
>>
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