geadinc I've been asked to optimize a compressor/limiter for a client and I need to check the THD response and minimize it. It's not clear to me that SignalScope Pro would work for me or not. Could someone tell me if it does a reasonable job of measuring THD between input and output of a device?
benfaber SignalScope Pro's FFT Analyzer tool is capable of computing THD with up to 15 harmonics. In order to get good results, you'll need to use a test signal that's at a frequency that matches one of the frequency bins in the FFT. This is fairly simple if you use SignalScope Pro's built-in signal generator and use the same audio device for both output and input in your measurements.
brianf7408 Am I correct in assuming that the number of spectral lines is equivalent to the number of bins?
benfaber Am I correct in assuming that the number of spectral lines is equivalent to the number of bins? Yes. Each line represents one bin.
