METRONOM - Visual & Audio Metronome
METRONOM visual screen - upper

General Info
Contributor(s): MiloTsukroff
Release Date: February 2, 2015
Development Status: Stable
Version: 1.1
Size: 2 KB
Mode(s): Single-Player
Language(s): English

METRONOM gives you a true, working metronome with both visual and audio output. It is tuned for the 3DS and 2DS and is engineered to be accurate within 3% over a wide range of Beats-Per-Minute (BPM).


METRONOM allows you to use your Nintendo 3DS / 3DS-XL / 2DS / DSi for a real metronome. It starts at 120 Beats-Per-Minute (BPM). You can adjust it up or down to increase or decrease the BPM. The upper screen shows a metronome-style bar and disk waving back and forth. METRONOM puts out a pulse for each beat. If you want use just the visual and make METRONOM quiet, control volume with the volume slider on your 3DS/2DS/DSi.

Controls: To adjust the BPM rate, use the Up and Down buttons, or, touch the Up and Down triangles on the lower touch screen. Hold down a button for a while to speed up how fast it goes. To end, touch the "Exit" circle or press the "SELECT" button.

TECHNICAL NOTE: I am a trained professional engineer, but even so, I can't predict how fast or slow your game machine will run METRONOM. So I made it self-adjusting. As METRONOM starts out, it uses the 3DS/2DS/DSi internal date/time clock to determine how fast it runs during one complete second. Once it has determined the "Time Parameter" setting, it uses this to control how fast it must run to maintain proper beats. I got it to run within 3% accuracy over the tested range of 60 to 180 BPM. The other important timing factor is an absolute overhead constant, which is subtracted out. This takes into account the time used to update variables and refresh the upper and lower screens. Refer to the source code to see how this works.

Videos and ScreenshotsEdit

METRONOM visual screen - upper

METRONOM visual - upper screen

METRONOM control screen - lower

METRONOM control panel - lower screen





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