Lukas Siegele

Looper—Transform any object into a sound body


How do we perceive our surrounding, if any object could turn into a sound body? Looper brings everyday objects to life in an experimental way.

Looper Concept


By integrating early stage prototypes in my design process I learned a lot about the coupling between the objects and the expectations the user has while interacting with it. With the gained knowledge I adapted my concept.


Looper consist of two parts, an input and an output object. The input one is similiar to a drum, on which you can beat a rhythm. It memorizes the sequence and sends the values to the output object via a WiFi connection.

Looper Input


The output object is a mechanical-knocking-arm, which can be placed independent from the input device, so that it can knock at any given object.

Looper Output

Loop Stretching

Beside a single repetition mode, there is also an infinite loop mode. By rotating the upper part of the drum, the tapped sequenz gets stretched. This allows interesting experiments with the rhythm modification and different surroundings.

Looper loop stretching

Final Prototypes

The input objects detects the knocking with a piezo sensor, which is then analyzed by an Arduino programm. Via the values are transmitted to the output object, where a solenoid hits at a mechanical arm.

Looper prototype


—Physical Computing, ZHdK, Moritz Kemper, Joël Gähwiler



—Arduino,, laser cutter