Hi, here are some lines of code which do not work. I generate a sinus, try to make a forward then inverse fft transform. The output signal is just noise.

void MainContentComponent::getNextAudioBlock (const AudioSourceChannelInfo& bufferToFill) { jassert( bufferToFill.buffer->getNumSamples() == 512 ); int numSamples = bufferToFill.buffer->getNumSamples(); float lTime = 0.f; for (int channel = 0; channel < 2; ++channel) { lTime = mTime; FFT lFFT(9, false); float * fftData = new float[numSamples * 2]; // fill the fft data with a sinusoidal signal. for(int i = 0; i < numSamples * 2; i++) { if(i < numSamples) { lTime += 0.09; fftData[i] = 0.1f * cos(lTime); } else{ fftData[i] = 0; } } lFFT.performRealOnlyForwardTransform(fftData); lFFT.performRealOnlyInverseTransform(fftData); bufferToFill.buffer->copyFrom(channel, 0, fftData, numSamples); } mTime = lTime; }

I am lost, please help.

Thank you,

Baptiste