Search Results for author: Stephan D. Ewert

Found 8 papers, 0 papers with code

Evaluation of Virtual Acoustic Environments with Different Acoustic Level of Detail

no code implementations29 Jun 2023 Stefan Fichna, Steven van de Par, Stephan D. Ewert

The simulations were perceptually evaluated using headphones in comparison to binaural room impulse responses measured with a dummy head in the corresponding real environments, and partly using loudspeakers.

valid

Computationally-efficient and perceptually-motivated rendering of diffuse reflections in room acoustics simulation

no code implementations29 Jun 2023 Stephan D. Ewert, Nico Gößling, Oliver Buttler, Steven van de Par, Hongmei Hu

Here, a computationally-efficient, digital-filter approach is suggested to account for effects of non-specular reflections in the ISM and to couple scattered sound into a diffuse reverberation model using a spatially rendered FDN.

Lower Interaural Coherence in Off-Signal Bands Impairs Binaural Detection

no code implementations6 Oct 2021 Bernhard Eurich, Jörg Encke, Stephan D. Ewert, Mathias Dietz

This mechanism differs from wider filters since it has no effect when the masker coherence is constant across frequency bands.

Prediction of tone detection thresholds in interaurally delayed noise based on interaural phase difference fluctuations

no code implementations1 Jul 2021 Mathias Dietz, Jörg Encke, Kristin I. Bracklo, Stephan D. Ewert

Here, we report detection thresholds for a 500 Hz tone in masking noise with up to 8 ms interaural delay and bandwidths from 25 to 1000 Hz.

Computationally efficient spatial rendering of late reverberation in virtual acoustic environments

no code implementations30 Jun 2021 Christoph Kirsch, Josef Poppitz, Torben Wendt, Steven van de Par, Stephan D. Ewert

A sufficient number of VRS is needed to approximate spatially anisotropic late reverberation, e. g., in a room with inhomogeneous distribution of absorption at the boundaries.

Computational Efficiency

Effect of acoustic scene complexity and visual scene representation on auditory perception in virtual audio-visual environments

no code implementations30 Jun 2021 Stefan Fichna, Thomas Biberger, Bernhard U. Seeber, Stephan D. Ewert

In the current study, the effect of scene complexity and visual representation of the scene on psychoacoustic measures like sound source location, distance perception, loudness, speech intelligibility, and listening effort in a virtual audio-visual environment was investigated.

Spatial resolution of late reverberation in virtual acoustic environments

no code implementations30 Jun 2021 Christoph Kirsch, Josef Poppitz, Torben Wendt, Steven van de Par, Stephan D. Ewert

The current study assessed the minimum number of spatially evenly distributed virtual late reverberation sources required to perceptually approximate spatially highly resolved isotropic and anisotropic late reverberation and to technically approximate a spherically isotropic diffuse sound field.

Towards a generalized monaural and binaural auditory model for psychoacoustics and speech intelligibility

no code implementations29 Jun 2021 Thomas Biberger, Stephan D. Ewert

So far auditory models have often focused on either monaural or binaural experiments in isolation.

Decoder

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