![]() ![]() I used Voxengo's Span Spectrum Analyzer which is free on the Voxengo website. Here are some screen shots of how I setup the Axe and Reaper to use a Spectrum Analyzer for Tone Matching. Through this iterative process I've been able to get closer tone matches by tweaking the amp block to get the spectrum analyzer results closer and closer and getting the behavior of the Amp model (gain, compression, frequency response) more like the reference amp. Using this I can change the level of the noise/sweep and see how the Axe model processes vs the reference amp, shoot a TMA, then test again or change the test signal source and check the spectrum analyzers. In Reaper I use Voxengo's Span on each channel so I have an audio spectrum analyzer side by side on the Axe TMA and the reference amp. The last 2 nights I've been panning the Axe's amp left and my reference amp right then run via USB into Reaper where each channel gets a track. I was getting different results from each source, Cliff had some recommendations as the results from each test signal should be similar. This thread is an offshoot of the "Tone matching the internal cab" which started getting into using white noise vs pink noise vs sine sweep to tone match.
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