• Daniel Dalskov
4. term, Acoustics and Audio Technology, Master (Master Programme)
The main topic of this report is locating acoustic sources. The underlying theory used to created the locating method, is based on multilateration, which uses multiple sensors and their TDOA (Time Difference Of Arrival) to estimate a unique position. The resulting method is able locate stationary sources as well as moving source, as long as an anechoic environment is used. A hardware platform has been developed to provide the possibility of online execution. The platform is based on a Raspberry Pi, a Wolfson Audio Card and a preamplifier circuit for the microphones. An issue with communication between the Raspberry Pi and the Wolfson Audio Card, limited the number of input channels to 2, instead of the 3 required 2D location. This confines the method to only determining the angle of the source, while using this platform.
Publication date4 Jun 2014
Number of pages76
ID: 198526290