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Author Topic: I need to fool my computer  (Read 393 times)
AF5CC
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Posts: 343




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« on: Yesterday at 12:29:28 PM »

I have a Dell laptop I am using as the shack computer, and on the internal soundard, the mic in part of the jack quit working-it has that 4 pin single jack for both microphone and headphones.  I am using a Signalink USB interface to get the sound in and out for remote control and for digital modes operating.

For remote control, it would be easier just using a single cord to a mic in jack. I bought a USB cable for microphones.  Now I need to fool my computer into thinking the USB cord plugged into a USB jack on the computer is seeing a microphone-which is actually the speaker jack on my TS2000.

Any ideas how I can get this set up so I can do the audio into the computer with a single cable and no soundcard interface? 

73 John AF5CC
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KB2WIG
Member

Posts: 432




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« Reply #1 on: Yesterday at 12:53:50 PM »


Can you open the laptop and see if the connector is making conections?

There is a chance that the jack itself is busted or come lose from the board/bulkhead/ case.


KLC
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EXTRALight  1/3 less WPM than a Real EXTRA
AA4PB
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Posts: 14495




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« Reply #2 on: Yesterday at 03:05:44 PM »

I think you should be able to go into the Windows sound setup and select the USB microphone as the input. However, I expect that you will have issues with trying to drive the microphone level input directly from a 8 ohm speaker output on the radio. There will be a big impedance mismatch and the speaker output will provide way more voltage output than a microphone. In addition, if the cable is set up to connect to an electret microphone then it will have a 5VDC or so output voltage that will be shorted by the audio output of the radio. You'll probably need an interface with a series capacitor to block the DC bias voltage and a series-parallel resistor configuration to attenuate the output level to the proper level.
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Bob  AA4PB
Garrisonville, VA
KS2G
Member

Posts: 824




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« Reply #3 on: Yesterday at 06:30:13 PM »

Have you considered just using an external USB sound card?

Something like this:
https://www.amazon.com/UGREEN-External-Headphone-Microphone-Desktops/dp/B01N905VOY/ref=sr_1_1_sspa?s=pc&ie=UTF8&qid=1524533279&sr=1-1-spons&keywords=usb+sound+card&psc=1

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