Smaart Tools single channel module is now available as an in-app purchase in AudioTools. Smaart Tools was developed by Studio Six Digital in collaboration with Rational Acoustics and is based on the proprietary algorithms, techniques, features & color mapping found in the Smaart v.7 acoustic test and measurement software.

The single-channel module includes the following features from Smaart® v.7: the RTA Bar graph, RTA Line graph, RTA Bar & FFT graph, and the Spectrograph. On the iPhone and iPod touch, there is an additional graph, the Spectrograph with the RTA Line graph on top of it. Here's a screen shot of that graph from iPhone 4.

All of the RTA banding options available in Smaart® v.7 are available, including log, lin, Octave, 1/3rd, 1/6th, 1/12th, 1/24th and 1/48th Octave modes. The decay modes from Smaart® v.7 are also available, and include None, 1, 2, 4, 8, and 16 averages, and the Smaart 1-10 second custom decay settings, as well as infinite, fast, and slow.

,p>The frequency scale can be zoomed down to a single octave, and the dB scale can be zoomed down to 1dB resolution. Double-tap the screen to return to full frequency response, and to auto-scale the dB scale.

Real-time spectrograph history is saved, just swipe to see sound events that have scrolled off the screen. Other features include high-contrast mode, variable Spectrograph speed, vertical or horizontal running Spectrograph, Difference mode, peak tracking, and FFT windowing.

All of the standard AudioTools features, such as Save/Recall and the generator panel are available. All settings are automatically saved and restored the next time that you run the app. Because the processor on the iPhone or iPad is not as powerful as a desktop machine, the the number of updates per second is lower than a desktop or laptop machine. iPad2 however, with its faster processor and graphics, runs Smaart Tools at near native desktop speed. On iPad, split graph mode is available, so that you can put any two graphs on the screen at the same time. Here is a screen shot of the RTA Bar graph and the Spectrograph running on the iPad. (Image smaller than real size).