How to get zero output in matlab when you have two singals in input

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Muhammad Abuzar 2022-12-10

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https://ww2.mathworks.cn/matlabcentral/answers/1875272-how-to-get-zero-output-in-matlab-when-you-have-two-singals-in-input

评论： Image Analyst 2022-12-12

I don't have a code. My question is what the procedure if i have one signal(sound of insect). And I've been told to sink this sound with the help of another sound to get zero output

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Image Analyst 2022-12-10

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I don't know what "sink" means to you. Do you mean lower or decrease? Maybe you just want to multiply the signal by some scalar, such as 0 or 0.1???

scalingFactor = 0.1;
signal = signal * scalingFactor;

I also don't know how the second signal would be used. But if you want zero output, you don't need the second signal, you can simply do

signal = 0;

What's the procedure for this? I mean there should be some different methods to execute the such tasks. I neans to bring both the signals in phase by selecting a small portion of the signals or . Can you pls tell me what should i do from the start to the end in detail. I'll be grateful 🥺

Image Analyst 2022-12-12

@Muhammad Abuzar if you already have a second signal that you must use, and if your first and second signal need to be aligned before subtracting, you can refer to these instructions:

https://www.mathworks.com/help/signal/ug/align-signals-using-cross-correlation.html?s_tid=srchtitle_cross%20correlation_9

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