How can I separate signalsdata in buffer?

Question

I'm making signal processing using qt ,I set up the desired the format like this:

Answer 1

You're using i to index YVectorRight , but you step up i with 2 every iteration, so you'll skip every second index.

I.e. you have a typo.

for ( int i = 0, j = 0; i < countSamples ; ++j) {
      YVectorRight[j] =Samples[i++];
//                ^^
//              use j here, not i
      YVectorLeft[j] = Samples[i++];
 }