Simple Audio Circuit... Connecting IFPA Front-Panel Audio Port to Sound Blaster with working switch.
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Posted by David Russell on October 14, 2004, 1:58 am
Please log in for more thread options Basically I have a headphone and microphone port on the front of my computer which has a connector like this: http://www.frontx.com/cpx110.html and am trying to connect it to a connector like this: http://forums.devhardware.com/archive/t-15584 . By simply not connecting the signal return pins to anything and ignoring the head-phone switch pins I can get sound to work. However, I'd like it to properly auto-sense the head-phones and work like it's supposed to as without those pins being grounded sound will still play from the speakers... The head-phone jack basically creates a circuit for both the left and right channels using the signal outputs when the head-phones aren't plugged in and breaks this circuit when the head-phones are plugged in. The sound-card I'm trying to plug into, however, simply has the signal outputs and then a set of pins which are to be ground when head-phones are plugged in. As I said, I know nothing about electronic design and thus really don't even know where to start on how to get this to work. If you could at least give me some pointers on what I would need to do that would be great. However, if you'd be so kind as to make a circuit diagram an idiot could understand including parts and where to get them I'd be indebted to you forever. Further a *lot* of people would appreciate your help as many computer cases now ship with front panel audio connectors exactly like mine. Right now it's only possible to plug the front panel audio connectors into an IFPA (Intel Front Panel Audio) connector on the motherboard. Many people would like to be able to plug their front panel audio connectors into a Sound-Blaster sound card as simply put the on-board sound chips can suck (especially C-Media's which I unfortunatly have). Thanks in advance, David Russell | ||||||||||
