[warning newbie question]
I'm trying to build a device that will combine 2 headphone-level stereo signals into one headphone-level output, some loss of signal strength is acceptable. Am I correct that a resistor on each of the hot legs of each of the puts will do the trick?
tia
Aaron
I'm trying to build a device that will combine 2 headphone-level stereo signals into one headphone-level output, some loss of signal strength is acceptable. Am I correct that a resistor on each of the hot legs of each of the puts will do the trick?
tia
Aaron
I won't touch the op-amps being better, but the simple resistor trick will work.
A little more info here.
http://www.hut.fi/Misc/Electronics/circuits/linesum.html
A little more info here.
http://www.hut.fi/Misc/Electronics/circuits/linesum.html
I like the idea of using unity-gain (or even gain controlled) buffers (amps) since the signal levels are below the power supply levels of 12V (in the application I'm considering).
Would you use a simple unity gain mixer stage after the buffers, in other words, two buffers to the non-inverting input of a single op amp? This could all be done on a 4-amp chip.
Ed
Would you use a simple unity gain mixer stage after the buffers, in other words, two buffers to the non-inverting input of a single op amp? This could all be done on a 4-amp chip.
Ed
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