Hello everyone,
I would like to introduce RT Analyzer, my first iOS app, developed with the assistance of AI.
The app is a tribute to the classic RTTATuner, which is unfortunately no longer being updated. Like RTTATuner, RT Analyzer measures pitch over time and accumulates the results for every note, making it useful for examining the intonation of an instrument across its full range.
Its pitch detection is based on the Flutini approach used by RTTATuner. The app first identifies the approximate note quickly, then refines the fundamental frequency using MPM and spectral information. The detection strategy is adjusted for different instruments:
-
Wind mode: prioritizes stable, precise measurements of sustained notes.
-
String mode: responds more quickly and accounts for vibrato.
-
Piano mode: analyzes the attack and harmonic structure, including the inharmonicity of piano strings.
It also supports equal temperament and just intonation, accumulated note statistics, harmonic spectrum analysis, adjustable accuracy thresholds, and measurement history.
This is my first app, so I would be very grateful for your suggestions, test results, and reports of anything that could be improved—especially comparisons with the original RTTATuner.
Special thanks to Terry McGee for developing and sharing the original RTTA concept, to Scott Turner for creating Flutini, and to Graeme Roxburgh for developing the RTTA Polygraph/Tartini-R workflow. I would also like to acknowledge Philip McLeod and Geoff Wyvill for their work on Tartini and the McLeod Pitch Method. Their research and generous sharing of these ideas made this project possible.
The latest iOS version is 0.7.4 and can be downloaded from the App Store:
The Android version still needs a little more testing. When it is ready, it will be released on my website:
