Energy-Preserving Ambisonic Decoding

Zotter, Franz; Pomberger, Hannes; Noisternig, Markus

doi:10.3813/aaa.918490

Cited by 49 publications

(28 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This effect can be reduced by regularization to some extent as shown in Fig. 16, where the regularization parameter is set to be 0.01 in (29). These figures show similar behavior as the measured results (Fig.…”

Section: Effect Of Noisesupporting

confidence: 75%

Periphony-Lattice Mixed-Order Ambisonic Scheme for Spherical Microphone Arrays

Chang

Marschall

2018

IEEE/ACM Trans. Audio Speech Lang. Process.

View full text Add to dashboard Cite

 Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

show abstract

Section: Effect Of Noisesupporting

confidence: 75%

Periphony-Lattice Mixed-Order Ambisonic Scheme for Spherical Microphone Arrays

Chang

Marschall

2018

IEEE/ACM Trans. Audio Speech Lang. Process.

View full text Add to dashboard Cite

show abstract

“…The prevailing spatialization techniques are Vector-Based Amplitude Panning (VBAP) [Pulkki 2001], Ambisonics [Zotter et al 2012;Gerzon 1992;Malham 1999], and Wave Field Synthesis [Berkhout et al 1993]. Localization cues are degraded for virtual sound sources [Grohn et al 2002;Pulkki and Hirvonen 2005;Guastavino et al 2007].…”

Section: Psychoacoustic and 3d Audio Reproduction Backgroundmentioning

confidence: 99%

Perceptual impact of gesture control of spatialization

Marentakis

McAdams

2013

ACM Trans. Appl. Percept.

View full text Add to dashboard Cite

In two experiments, visual cues from gesture control of spatialization were found to affect auditory movement perception depending on the identifiability of auditory motion trajectories, the congruency of audiovisual stimulation, the sensory focus of attention, and the attentional process involved. Visibility of the performer's gestures improved spatial audio trajectory identification, but it shifted the listeners' attention to vision, impairing auditory motion encoding in the case of incongruent stimulation. On the other hand, selectively directing attention to audition resulted in interference from the visual cues for acoustically ambiguous trajectories. Auditory motion information was poorly preserved when dividing attention between auditory and visual movement feedback from performance gestures. An auditory focus of attention is a listener strategy that maximizes performance, due to the improvement caused by congruent visual stimulation and its robustness to interference from incongruent stimulation for acoustically unambiguous trajectories. Attentional strategy and auditory motion calibration are two aspects that need to be considered when employing gesture control of spatialization.

show abstract

“…In an ill-posed problem small changes in equation parameters, such as the measurement errors in the ATFs, cause large changes in the designed loudspeaker weights. They require methods such as singular value decompositions 28 and Tikhonov regularization 29,30 which perform the reproduction robustly and keeps loudspeaker output power down to reasonable levels.…”

Section: Regularizationmentioning

confidence: 99%

Two dimensional sound field reproduction using higher order sources to exploit room reflections

Betlehem

Poletti

2014

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

In this paper, sound field reproduction is performed in a reverberant room using higher order sources (HOSs) and a calibrating microphone array. Previously a sound field was reproduced with fixed directivity sources and the reverberation compensated for using digital filters. However by virtue of their directive properties, HOSs may be driven to not only avoid the creation of excess reverberation but also to use room reflection to contribute constructively to the desired sound field. The manner by which the loudspeakers steer the sound around the room is determined by measuring the acoustic transfer functions. The requirements on the number and order N of HOSs for accurate reproduction in a reverberant room are derived, showing a 2N + 1-fold decrease in the number of loudspeakers in comparison to using monopole sources. HOSs are shown applicable to rooms with a rich variety of wall reflections while in an anechoic room their advantages may be lost. Performance is investigated in a room using extensions of both the diffuse field model and a more rigorous image-source simulation method, which account for the properties of the HOSs. The robustness of the proposed method is validated by introducing measurement errors.

show abstract

Energy-Preserving Ambisonic Decoding

Cited by 49 publications

References 0 publications

Periphony-Lattice Mixed-Order Ambisonic Scheme for Spherical Microphone Arrays

Periphony-Lattice Mixed-Order Ambisonic Scheme for Spherical Microphone Arrays

Perceptual impact of gesture control of spatialization

Two dimensional sound field reproduction using higher order sources to exploit room reflections

Contact Info

Product

Resources

About