Hello all,
I'm trying to make a DIY DJ audio mixer and am wondering what is the reasoning behind using VCA for channels on some mixers, while others use resistance-based audio level control via potentiometers?
I understand that if I use a stereo potentiometer, and run stereo sound through it, it will not come out exactly as it should, as they have a tolerance of around 20% it seems (Alps RK27 for example) between the L and R channels. The VCA seems to overcome this issue, as it would only run a certain voltage through one of the potentiometer's channels instead of both, so the L/R tolerance of the potentiometer becomes irrelevant.
But is this all there is to it, or am I missing something? Because for me at the moment, it seems VCA is superior?
I'm trying to make a DIY DJ audio mixer and am wondering what is the reasoning behind using VCA for channels on some mixers, while others use resistance-based audio level control via potentiometers?
I understand that if I use a stereo potentiometer, and run stereo sound through it, it will not come out exactly as it should, as they have a tolerance of around 20% it seems (Alps RK27 for example) between the L and R channels. The VCA seems to overcome this issue, as it would only run a certain voltage through one of the potentiometer's channels instead of both, so the L/R tolerance of the potentiometer becomes irrelevant.
But is this all there is to it, or am I missing something? Because for me at the moment, it seems VCA is superior?
