AudioTool

★★★★★ Great hifi tuning tool. Using with Dayton Audio imm-6 mic with calibration file. Stays set unless you change it. Enter mic serial on DA site and download xxxxx.txt calibration file. Rename from xxxxx.txt to xxxxx.cal. Move file from Download folder into the Audio Tool folder. In the app go to "Menu" and select "Load cal". Choose the xxxxx.cal file. n.b. If you do not see the Load Cal menu entry, click on "Use 1/3 Octave Calibration". Re-opening the menu will then show the button.

★★★★★ Using this app with a mini DSP UMIK-1, changed my calibration file to a .cal and loaded it no problem, going to be using it for car audio tuning RTA, way cheaper than a dedicated RTA and should do exactly what I need

★★☆☆☆ I have a Dayton Mic. A Motorola Stylus phone. I have no Audio Tool folder on my phone. I can only move my Calibration File to internal storage on my phone, I have no way of getting the Audio Tool Folder into my internal storage. I've saved files on the Audio Tool app, but this does not help me find a way to move my calibration into Audio Tool. After Using 1/3 Octave Calibration I am unable to Load Cal. If I can't load my Cal File I'd like my money back please.