Appmuse

Car audio analysis tools. Now you can test your automobile sound system audio using a professionally-designed test and measurement app. The free app includes ad-supported, limited-feature versions of our professional-quality SPL meter, RTA, FFT Analyzer, and Polarity Tester. Upgrade with the AudioControl SA4100i test and measurement microphone and everything is free! All of the modules are automatically unlocked as soon as you plug in the microphone. You can also buy any of the modules as ad-free and full featured, even if you don't use our microphone. Using just the built in iOS device microphone, you can test things like frequemcy response, speaker driver polarity, SPL level, and more. Adjust your sound system equalizer by sending pink noise to your system, measuring the frequency response with the RTA (Real Time Analyzer) or the FFT Analyzer. Try to get the flattest response, with a slight (or huge!) low end boost.