• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Sound circuit

Status
Not open for further replies.

audioguru

Well-Known Member
Most Helpful Member
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.
 

fedail

New Member
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
 

audioguru

Well-Known Member
Most Helpful Member
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?
 

fedail

New Member
thanks fr all information but i see circuit havr tow input make without noise
i haven't teacher. i want to build soun card
 

Krumlink

New Member
If you are having this much trouble, I suggest you make some LED throwies! They are pretty advanced for your current level.
 

blueroomelectronics

Well-Known Member
Krumlink said:
If you are having this much trouble, I suggest you make some LED throwies! They are pretty advanced for your current level.
I'm afraid I'd have to agree. Start with the basics, a sound card is no cakewalk.
 

Hero999

Banned
This is the third thread he's made about sound cards.

Somehow, I don't think he's going to liston.
 
Status
Not open for further replies.

EE World Online Articles

Loading
Top