Supplementary Equipment

Directional microphone

For IBF Orthoptera a directional microphone is necessary to gather sounds of grasshoppers and store them in the internal storage unit of the smartphone. Currently (in 2012), there are no head set adapters available for HTC 7 smartphones which are appropriate to connect directional microphones.

Thus, we thank Stephan Meßlinger, University of Bayreuth, LS Experimentalphysik V who found a technical solution and modified commercial adapters to overcome this obstacle.

The directional microphone currently used: ***

The HTC 7-Adapter modified: ****

Connection diagram in relation to the brazing process: