METRONOM - Visual & Audio Metronome

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).

Instructions
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.

TECHNICAL NOTE: I am a trained professional engineer, but even so, I can't predict how fast or slow your game machine will run. So I made this program self-adjusting. As it starts out, it uses the date/time clock to determine how fast it runs during one complete second. Once it has generated the "Time Parameter", 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 is because it takes the same time to update variables and refresh the upper and lower screens, so it must be taken into account each time. Refer to the source code to see how this works.

License
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