When a frequency is building up in a venue and overpowering the rest of the audio or is threatening feedback, you can use an RTA/FFT (Real Time Analysis / Fast Fourier Transform) to get visual feedback of frequency volumes in an x/y graph showing frequencies vs. decibels. This helps confirm which frequencies are problematic so you can make the appropriate adjustments with confidence. AcoustiTools’® RTA/FFT module gives you control over spectral weighting, spectrum block size, and more to help your diagnostics!

The RTA/FFT module is also useful when setting up to check the response of your speakers in the venue. By sending pink noise through the system and watching for exaggerated frequencies in the metering, you will be aware of possible problematic frequencies before practice.