I am not that familiar with this kind of circuit but i highly need an expert critique and help on it.
To start with, I'm going to use 4 ordinary microphones (ones used in computers), with 3.5mm TRS plug, as inputs. I need to mix/sum the signal coming from these microphones. Then the summed audio will then be distributed/split into each of the four equivalent signals.
I have consulted my professor about it and he gave me a rough sketch of the diagram. What i need to know is how am i going to determine the appropriate values for the capacitors and the resistors. I have researched some circuits but i am not sure if they are correct. The capacitors having a value of 0.1μF, the potentiometer having a value of 10KΩ, resistors having 100KΩ and a 1MΩ value?? I'm really not sure about it. He also pointed out that we could use any usual op-amp used for audio. Do you have any suggestions about it? Will an NE5532 fit the job? or should i use something like TL084?
Another thing, is it really all right to distribute the summed audio signals by a parallel connection? Wouldn't that degrade the signal? The main purpose of this project is to produce a nice quality audio after passing through this audio mixer and splitter circuit.
Any small help would be highly appreciated. Thank you very much.
To start with, I'm going to use 4 ordinary microphones (ones used in computers), with 3.5mm TRS plug, as inputs. I need to mix/sum the signal coming from these microphones. Then the summed audio will then be distributed/split into each of the four equivalent signals.
I have consulted my professor about it and he gave me a rough sketch of the diagram. What i need to know is how am i going to determine the appropriate values for the capacitors and the resistors. I have researched some circuits but i am not sure if they are correct. The capacitors having a value of 0.1μF, the potentiometer having a value of 10KΩ, resistors having 100KΩ and a 1MΩ value?? I'm really not sure about it. He also pointed out that we could use any usual op-amp used for audio. Do you have any suggestions about it? Will an NE5532 fit the job? or should i use something like TL084?
Another thing, is it really all right to distribute the summed audio signals by a parallel connection? Wouldn't that degrade the signal? The main purpose of this project is to produce a nice quality audio after passing through this audio mixer and splitter circuit.
Any small help would be highly appreciated. Thank you very much.