Professional version of the RTA audio analyser. Adds 1/4, 1/6 and 1/12 analysation band spacing with up to 120 bands, scalable peak holds and more colour schemes. Permanently stores calibration data. Screenshots can be saved and peak / rms values can be exported to a. csv file. If in doubt, check our free RTA. Bugs, comments to: info@radonsoft. net.