K3: NR volume low

[oe9fwv]

I have the impression that with the NR engaged the overall volume is much
lower than without. Is there a possibility to adjust the audio volume / gain in
the NR settings somewhere?
I have seen this in the K2 DSP for rtty mode.

Next question: 2 of my friends who tried the K3 this afternoon think that
there is a significant delay in the monitor output. I don't use monitor in
normal operation, I only use it to adjust my mic settings, but they make use
of it a lot, and felt somehow irritated by the delay.

73! de Werner OE9FWV

--
"Allem kann ich wiederstehen, nur der Versuchung nicht."
Oscar Wilde


Email powered by Pegasus Mail free at <http://www.pmail.com>
Homepage: <http://www.qsl.net/oe9fwv/>
Fone [phone]
Fax [phone]
Mobile [phone]
Elecraft K2 #5203 K3 #656


_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[KK7P]

> I have the impression that with the NR engaged the overall volume is much
> lower than without. Is there a possibility to adjust the audio volume / gain in
> the NR settings somewhere?
> I have seen this in the K2 DSP for rtty mode.

This is not currently in the firmware, but is in the suggestion box.

> Next question: 2 of my friends who tried the K3 this afternoon think that
> there is a significant delay in the monitor output. I don't use monitor in
> normal operation, I only use it to adjust my mic settings, but they make use
> of it a lot, and felt somehow irritated by the delay.

The delay is 20 to 30 ms.  It is because we are sampling the actual IF
signal so we have several filter delays.  We're looking at a possibly
different approach that could improve this by 50% or so, but if we're
successful it will be some time before it is ready.

73,

Lyle KK7P

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[Jack Smith-6]

In the landline and cellular business, it's called "sidetone delay" and
anything over 5 ms is cause for concern. See, e.g.,
http://ftp.tiaonline.org/TR-41/TR41.3.3/Public/2007-05-StPetersburg/TR41.3.3-07-05-005-M-ETSI-NarrowbandHandsetHeadset-00063v023.doc

Some sources suggest as much as 25 ms is acceptable, but my experience
is that 10 ms is the outer bound before user complaints occur. The GSM
phones I'm most familiar with have sidetone delay well below 5 ms.

These numbers are based on telephony user studies, and perhaps a
different delay may be considered acceptable in amateur radio circles.


Jack
www.cliftonlaboratories.com



Lyle Johnson wrote:

>> I have the impression that with the NR engaged the overall volume is
>> much lower than without. Is there a possibility to adjust the audio
>> volume / gain in the NR settings somewhere?
>> I have seen this in the K2 DSP for rtty mode.
>
> This is not currently in the firmware, but is in the suggestion box.
>
>> Next question: 2 of my friends who tried the K3 this afternoon think
>> that there is a significant delay in the monitor output. I don't use
>> monitor in normal operation, I only use it to adjust my mic settings,
>> but they make use of it a lot, and felt somehow irritated by the delay.
>
> The delay is 20 to 30 ms.  It is because we are sampling the actual IF
> signal so we have several filter delays.  We're looking at a possibly
> different approach that could improve this by 50% or so, but if we're
> successful it will be some time before it is ready.
>
> 73,
>
> Lyle KK7P
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft   
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[WY5Q]

Lyle KK7P wrote

> with the NR engaged the overall volume is much lower than without. Is there a possibility to adjust the
> audio volume / gain in the NR settings somewhere?

This is not currently in the firmware, but is in the suggestion box.

I would like this too.  It's difficult to switch quickly between NR/norm because of the volume blast/reduction.

Thanks.