Labs

Acoustics lab

The Acoustics lab addresses the concept of sound quality assessment via noise reduction through the optimisation of robot and machine sounds to voice interfaces and public-speaker (presentation and negotiation) training.

Close-up of professional microphone with 3D printed, colourful listening dummy behind

   

Description

The CIE Acoustics lab is built around the central concept of sound quality assessment. Our environment is getting louder and louder, and both the noise sources and their sound characteristics are becoming ever more diverse. At the same time, digital mass media and global markets give the power of the human voice a whole new meaning. Our equipment meets these challenges of the twenty-first century. We can produce, record and measure sound multidimensionally and multiparametrically; and, in each of these contexts, we can analyse patterns of human behaviour, physiology and speech. The issues that we can address on this basis reach from noise reduction through the optimisation of robot and machine sounds to voice interfaces and public-speaker (presentation and negotiation) training.
Accordingly, the laboratory is divided into 3 sections: (1) a sound-treated booth, (2) a surround sound acoustic-ambiance simulation environment with virtual reality immersion and (3) a perceptual area for interactive psychoacoustic experiments.

    

Services for companies

Sound-related services
  • Sound design, i.e. guidance for the improvement of machine sounds, also considering customer specific factors and requirements
  •  Development of voice interfaces for machines and improvement of speech output of talking machines/robots, especially in terms of social, emotional and persuasive qualities
  • Infrasound (G-weighting) measurements according to ISO 7196:1995 and ANSI S1.42–2001 (R2011)
Noise-related services
  • Noise-source localisation
  • Noise measurement and analysis, also as a preparation for certification
  • Noise assessment in terms of how stressful/distracting/dangerous it is for humans and for human health (with advice for improvement)
Speech related services
  • SDU Acoustic Charisma Training; the world's first presentation/public speaking training that is based on acoustic signal analysis and strictly rooted in scientific grounds; taught in combination with acoustic signal visualisation, body language and general voice and breathing training
  • Negotiation training, also based on acoustic voice analysis and training

Equipment

  • Acoustic lab
  • Sound-proof booth for high-end and multi-channel 3D acoustic signal recordings
  • 3D acoustic ambiance simulation that puts humans in realistic noise/sound conditions to test their behavioural or physiological reactions
  • Mobile Head-And-Torso-Simulator (HATS) for human-like sound/noise recordings
  • 4 PC workstations equipped with state-of-the-art software for digital signal processing, speech synthesis/recognition and psychoacoustic experiments.

Contact

Oliver Niebuhr
Associate professor, PhD
Centre for Industrial Electronics (CIE) 
The Mads Clausen Institute     

T +45 6550 7649
olni@sdu.dk  

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