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| General Electronics Chat This forum is for general chat about electronics, eg: Dont know what a part does? Dont know how to read a circuit? Want to get an opinion? |
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30th March 2008, 07:08 PM
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 Sound circuit can i have sound circuit have 2 input mic and transmit to one line and output for 3 output speaker | |
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30th March 2008, 07:26 PM
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| You need to make two microphone preamp circuits that match the type of microphone you have. You need a mixer circuit with a line level output and an output to three power amplifiers. You need the circuit for three power amplifiers. The circuits are on the internet and can be found by a search with Google.
__________________ Uncle $crooge | |
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31st March 2008, 12:13 AM
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| thanks alot i have to test it on proteus samulation but i have some qestion 1 - i want to use the simple mic like it use with pc 2 - what is frequency and if mixed the tow input from mic it is clearly signal or crash 3 - what value of resister must i have to put in the input and outpu 4 - can u tell me the site give this circuit | |
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31st March 2008, 12:52 AM
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| A pc uses an electret mic. So design or find a preamp circuit for two of them, and a mixer circuit. I don't know what happens if you short circuit two mics together. I think bad distortion. Many input resistors are needed. I don't think an output resistor is needed if you use opamps and amplifier ICs. Did your teacher not tell you where to go to just copy circuits?
__________________ Uncle $crooge | |
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31st March 2008, 04:17 PM
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| thanks fr all information but i see circuit havr tow input make without noise i haven't teacher. i want to build soun card | |
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31st March 2008, 07:47 PM
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| I think I've asked this before but WHY do you want to build a sound card? | |
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1st April 2008, 12:43 AM
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| Just for improve my skill | |
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1st April 2008, 12:46 AM
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| If you are having this much trouble, I suggest you make some LED throwies! They are pretty advanced for your current level. | |
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1st April 2008, 12:53 AM
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1st April 2008, 02:14 AM
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| This is the third thread he's made about sound cards. Somehow, I don't think he's going to liston.
__________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez | |
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