Fast Continuous Measurement of HRTFs with Unconstrained Head Movements for 3D Audio

He, Jianjun; Ranjan, Rishabh; Gan, Woon‐Seng; Chaudhary, Nitesh Kumar; Hai, Nguyen Duy; Gupta, Rishabh

doi:10.17743/jaes.2018.0050

Cited by 19 publications

(20 citation statements)

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“…In addition, the inertial sensors integrated in the VR/AR/MR headsets can be used to record head orientation data. Objective and subjective evaluation results showed that the HRTFs measured with these dynamic measurement systems are comparable to those measured with conventional static systems [167]. Instead of using inertial sensors [142,166,168], VR/AR/MR headsets [120,166,168,169], and cameras [170], some researchers proposed to acoustically track head movements based on the recorded ears signals and the knowledge of speaker positions [150], or by analyzing recorded signals with an additional microphone array [171].…”

Section: Single-loudspeaker-based Fast Hrtf Measurement Methodsmentioning

confidence: 72%

“…Some researchers proposed a measurement system to continuously estimate 2D individual HRTFs by actively performing head movements [141,142,[165][166][167][168][169]. The setup S J in Figure 9 can be regarded as an example hardware configuration for the continuous measurement of 2D HRTFs.…”

Section: Single-loudspeaker-based Fast Hrtf Measurement Methodsmentioning

confidence: 99%

“…The acoustic signals (y(n)) and the orientation data (ϕ n , θ n ) are recorded by in-ear microphones and the head tracker device, respectively. The adaptation of HRIRs can be performed either offline [142,167,168] or in real time [120,169] with the NLMS algorithm:…”

Section: Single-loudspeaker-based Fast Hrtf Measurement Methodsmentioning

confidence: 99%

“…The mobile systems described above show the potential for the fast acquisition of individual 2D HRTFs with only a few measurement devices. There are still some challenges to be considered, e.g., the synchronization between the orientation data and microphone signals, uncontrollable head-above-torso orientations (HATOs) during the measurement, influences of the variable rotational speeds, and the HMD on the accuracy of HRTFs [120,167,172,173].…”

Section: Single-loudspeaker-based Fast Hrtf Measurement Methodsmentioning

confidence: 99%

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Measurement of Head-Related Transfer Functions: A Review

Peissig

2020

Applied Sciences

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A head-related transfer function (HRTF) describes an acoustic transfer function between a point sound source in the free-field and a defined position in the listener’s ear canal, and plays an essential role in creating immersive virtual acoustic environments (VAEs) reproduced over headphones or loudspeakers. HRTFs are highly individual, and depend on directions and distances (near-field HRTFs). However, the measurement of high-density HRTF datasets is usually time-consuming, especially for human subjects. Over the years, various novel measurement setups and methods have been proposed for the fast acquisition of individual HRTFs while maintaining high measurement accuracy. This review paper provides an overview of various HRTF measurement systems and some insights into trends in individual HRTF measurements.

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Section: Single-loudspeaker-based Fast Hrtf Measurement Methodsmentioning

confidence: 72%

Section: Single-loudspeaker-based Fast Hrtf Measurement Methodsmentioning

confidence: 99%

Section: Single-loudspeaker-based Fast Hrtf Measurement Methodsmentioning

confidence: 99%

Section: Single-loudspeaker-based Fast Hrtf Measurement Methodsmentioning

confidence: 99%

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Measurement of Head-Related Transfer Functions: A Review

Peissig

2020

Applied Sciences

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“…This detour via morphology is taken to avoid an acoustic measurement, which is deemed impossible or impractical in a home environment. Yet, in recent years it has been suggested that such an acoustic measurement of the individualized HRTF at home could be feasible, using a dynamic approach [13]- [16].…”

Section: Introductionmentioning

confidence: 99%

HRTF measurement by means of unsupervised head movements with respect to a single fixed speaker

et al. 2020

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In a standard state-of-the-art measurement the head-related transfer function (HRTF) is obtained in an anechoic room with an elaborate setup involving multiple calibrated loudspeakers. In search for a simplified method that would open up the possibility for an HRTF measurement in a home environment, it has been suggested that this setup could be replaced with one with a single, fixed loudspeaker. In such a setup, the subject samples different directions by moving the head with respect to this loudspeaker, while the head movements are tracked in some way. In this paper, the feasibility of such an approach is studied. To this end, the HRTF is measured in an unmodified (non-anechoic) room by means of a single external speaker and a high resolution head tracking system. The differences between the dynamically obtained HRTF and the standard static HRTF are investigated, and are shown to be mostly due to variable torso reflections. INDEX TERMS Acoustic measurement, acoustic signal processing, spectral shape, psychoacoustics, acoustical engineering.

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