From Bofinit: Tunerrr uses the sound picked up by the Pocket PC's built in microphone to help you tune a musical instrument. By frequency analysing the incoming sound, Tunerrr finds the closest note on the equal tempered scale. Tunerrr is capable of detecting musical notes in the frequency range from 10Hz to 4000Hz, with a resolution of less than 1Hz. When Tunerrr detects a note, it displays the note's letter, highlights the corresponding key on a depiction of a 1 octave piano keyboard, and gives an indication of how close the detected frequency is to the standard tuning for the note. New version 1.7 now includes sound level sensitivity adjustment, and one octave pure tone 'piano' keyboard, and support for Pocket PC as well as Pocket PC 2002 devices.
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