The project is about making a sound controller. Beats and patterns can be added to the sound and the frequency spectrum of the sound is shown on a display.
by Robin Palmblad & Mattias Ahlström
The project resulted in a nice sound controller that has input sound from a 3.5mm cable and sound out through a 3.5mm cable. A frequency spectrum is shown on a graphical display with 128x64 resolution and beats can be added to the sound by pressing buttons on a keypad. To make debugging easier LEDs were added to the construction. The LEDs lights when the output sound is maxed or when the sound has been off for a short time. It lights red for maximum volume and lights yellow for no sound. To be able to adjust the volume a potentiometer was added to the construction. It was discovered that when the potentiometer wasn’t set to maximum or minimum it produced noise to the output signal.