Signal Processing / Acoustic Camera

The Signal Processing group researches and develops new algorithms as well as hardware and software solutions for multi-channel measuring systems. Our expertise includes the sample-synchronous acquisition, presentation and analysis of large data sets using high sampling frequencies and data transfer rates.

Areas of application are vibration analysis, noise reduction, sound design and quality assurance in the automotive industry, environmental technology in room acoustics and architectural acoustics. An outstanding result of our work is the invention and development of the first Acoustic Camera, a system to visualize sound source.

Profile

  • Development of high-channel measuring systems
  • Software development to display and analyze large amounts of data
  • Development of new algorithms in signal processing
  • Simulation and development of beamforming and holography systems (Acoustic Camera)
  • Multi-channel intensity measurement technology
  • Equipment for test rigs (aeroacoustic wind tunnel, engine test stand, test track) with high-channel measurement technology

Research Projects

Mekka

Feature detection for acoustic cameras

Development of new methods for the automatic testing of component assemblies using high-channel acoustical mapping techniques for fully automated use in industrial quality assurance.

Funded by: Federal Ministry for Economic Affairs and Energy / INNO-KOM-Ost (MF); funding code: MF 150035

MicLayOut

Layout of application-specific microphone arrays

Development of new algorithmic methods for the time-efficient generation of user-specific microphone array layouts

Funded by: Federal Ministry for Economic Affairs and Energy / INNO-KOM-Ost (MF); funding code: MF 140115

ModulAr

Modular array geometries

Development of a new, modular microphone array system for noise source mapping, which is the technological foundation for a next generation of acoustically optimized array systems based on microphones with a digital interface.

Funded by: Federal Ministry for Economic Affairs and Energy / INNO-KOM-Ost (MF); funding code: MF 150212

NahMi

Near-field microphone arrays for sound intensity mapping

Development of new methods for acoustic mapping of the sound intensity using hand-held near-field microphone arrays

Funded by: Federal Ministry for Economic Affairs and Energy (BMWi) / INNO-KOM-Ost (MF), funding code: MF 140211