K3S line-in and internal sound card at the same time

[Jim Kutsch, KY2D-2]

Is it possible to have the K3S internal sound card feed the transmitter
audio and also have the line-in jack feeding it at the same time? I use both
the internal sound card and an external sound modem for different data modes
but have to unplug the line-in plug when using the K3S internal sound card.
When something is plugged in to line-in, the internal sound card is
disabled. On the other hand, K3S line-out and the internal USB sound card
coexist very nicely and feed received signals down both paths.

 

If anyone is using USB audio in while something is plugged in the line-in
jack, please share how. Thanks.

 

73 Jim KY2D

 

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[Don Wilhelm]

Jim,

Yes, anything plugged into Line In overrides the internal soundcard
input.  That is by design.

BTW, you can have several applications running at once on a single
soundcard - you might try that.  The multiple sources are mixed by the
soundcard.  The internal soundcard is good enough for data modes.

73,
Don W3FPR

On 11/23/2020 4:08 PM, Jim Kutsch KY2D wrote:

> Is it possible to have the K3S internal sound card feed the transmitter
> audio and also have the line-in jack feeding it at the same time? I use both
> the internal sound card and an external sound modem for different data modes
> but have to unplug the line-in plug when using the K3S internal sound card.
> When something is plugged in to line-in, the internal sound card is
> disabled. On the other hand, K3S line-out and the internal USB sound card
> coexist very nicely and feed received signals down both paths.
>
> If anyone is using USB audio in while something is plugged in the line-in
> jack, please share how. Thanks.
>
>  
>
> 73 Jim KY2D
>
>  
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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[Joe Subich, W4TV-4]

On 2020-11-23 4:08 PM, Jim Kutsch KY2D wrote:
> Is it possible to have the K3S internal sound card feed the
> transmitter audio and also have the line-in jack feeding it at the
> same time?
*NO* The "Line In" jack contains a switch that causes audio from the
from the "CODEC" (sound card) to the transmitter input to be
disconnected and external audio (from the "Line In" jack) to be
substituted when a plug is present in the "Line In" jack.

Audio from both the CODEC and the Line In jack goes to a 74HC4053 switch
on the KIO3B - only one "input" of that switch can be selected at a
time.  The control signal is a simple "ground" created when a plug is
inserted into the Line In jack and applied directly to the 74HCT4053
without processing/control by the K3S controller.

73,

    ... Joe, W4TV


On 2020-11-23 4:08 PM, Jim Kutsch KY2D wrote:

> Is it possible to have the K3S internal sound card feed the transmitter
> audio and also have the line-in jack feeding it at the same time? I use both
> the internal sound card and an external sound modem for different data modes
> but have to unplug the line-in plug when using the K3S internal sound card.
> When something is plugged in to line-in, the internal sound card is
> disabled. On the other hand, K3S line-out and the internal USB sound card
> coexist very nicely and feed received signals down both paths.
>
>  
>
> If anyone is using USB audio in while something is plugged in the line-in
> jack, please share how. Thanks.
>
>  
>
> 73 Jim KY2D
>

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