[Elecraft] K3 KIO3B - FSK - stereo

[Richard Ferch]

Most media players use the default device. In addition to Windows 
sounds, you wouldn't want sound clips from your Internet browser playing 
through the radio codec, to pick an example.

Another reason might be that if the K3S or K3+KIO3B is turned off or 
disconnected from the computer, the device would disappear and Windows 
would change the default to some other (possibly unpredictable) device.

There may be yet another reason: I believe that in recent versions of 
Windows, when a device is selected as the default device, Windows 
routinely disables other inputs on that sound card or codec. If, for 
example, the microphone input were selected as the default device, I 
believe that the line input on that same card would be disabled. I don't 
know whether the KIO3B codec has multiple inputs, so I don't know 
whether this actually applies to it.

73,
Rich VE3KI


W3FPR wrote:

> Ian,
>
> The operating system plays its sounds through the default soundcard.
> You really don't want to transmit those sounds on the air.
>
> 73,
> Don W3FPR
>
> On 2/15/2016 6:42 AM, Ian White wrote:
>> VE3KI wrote:
>>> Also, make sure that the USB Audio Codec is not selected as the Default
>>> Device or the Default Communications Device - these should both be set
>>> to the motherboard sound card in your PC.
>> Please could you explain the reasons for that?
>>
>>