i have two audio signals y1 ,y2 .Now i wants y3 as mixture of y1 and y2
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Simple mixing is just adding.
y3 = y1 + y2;
If you want to control the level of each within the mix, then you need to adjust them as follows:
y3 = (y1*y1_level) + (y2*y2_level);
where yx_level is based on the decibel conversion:
yx_level = 10^(level/20);
So to make signal 2 half the amplitude of signal 1, you'd use -6 dB as follows:
y3 = (y1*(10^(0/20)) + (y2*(10^(-6/20));
All of this assumes that the two signals are the same dimensions and have the same starting level.
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