Jürgen Peissig's research while affiliated with Leibniz Universität Hannover and other places

Publications (80)

Preprint
Due to the distance-dependent characteristics of near-field Head-Related Transfer Functions (HRTFs), their acquisition procedure is much more complex than that of far-field HRTFs, which is already rather tedious. Recently, an approach to efficiently measure near-field HRTFs with a high distance resolution, using a continuously moving sound source a...
Article
Full-text available
The concept of soundscapes according to ISO 12913-1/-2/-3 proposes a descriptive framework based on a triangulation between the entities acoustic environment, person and context. While research on the person-related dimensions is well established, there is not yet complete agreement on the relevant indicators and dimensions for the pure description...
Article
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Although virtual reality, video entertainment, and computer games are dependent on the three-dimensional reproduction of sound (including front, rear, and height channels), it remains unclear whether 3D-audio formats actually intensify the emotional listening experience. There is currently no valid inventory for the objective measurement of immersi...
Conference Paper
Full-text available
Near-field Head-Related Transfer Functions (HRTFs) depend on both source direction (azimuth/elevation) and distance. The acquisition procedure for near-field HRTF data on a dense spatial grid is time-consuming and prone to measurement errors. Therefore, existing databases only cover a few discrete source distances. Coming from the fact that continu...
Article
Full-text available
In internet experiments on auditory perception, playback devices may be a confounding variable reducing internal validity. A procedure to remotely test multiple characteristics of playback devices does not currently exist. Thus, the main goals of this study were to (i) develop and (ii) evaluate a comprehensive, efficient, and easy-to-handle test pr...
Conference Paper
Networked Music Performances (NMPs) are of increasing importance for creative and cultural professionals exploring new solutions and opportunities to perform at geographically distant locations. Although latency is one of the most important parameters for the transmission of audio information, it is rarely possible to obtain insights into the indiv...
Conference Paper
Full-text available
The frequency-domain adaptive Kalman filter (FDAKF) is a popular choice for multichannel acoustic echo cancellation (AEC) due to its good initial convergence and robustness to double-talk. However, without additional measures its reconvergence and tracking capabilities are known to be suboptimal. Previous studies have particularly focused on abrupt...
Conference Paper
An acoustic transfer function dataset is presented that contains the influence on the head-related transfer function (HRTF) of headphones worn by a dummy-head. The database contains the HRTFs of a KEMAR dummy head in the horizontal plane with an angular resolution of 5 degrees, as well as the perturbed HRTFs of 34 different headphones of all types...
Preprint
Full-text available
Although virtual reality, video entertainment, and computer games are dependent on the three-dimensional reproduction of sound (including front, rear, and height channels), it remains unclear whether 3D-audio formats actually intensify the emotional listening experience. There is currently no valid inventory for the objective measurement of immersi...
Article
Full-text available
Broadband time-invariant feedback (FB) controllers can be designed to cancel unwanted noise components with a single error microphone on each side of a headphone. This paper presents an optimization routine based on the genetic algorithm (GA) approach to set the boundaries for a mixed-sensitivity H∞ controller. The FB controllers are designed with...
Article
Full-text available
A headphone-based virtual sound image can not be perceived as perfectly externalized if the acoustic of the synthesized room does not match that of the real listening environment. This effect has been well explored and is known as the room divergence effect (RDE). The RDE is important for perceived externalization of virtual sounds if listeners are...
Article
Modern communication networks enable audiovisual interaction between geographically distant locations in near real time, leading to an increasing interest in networked music performance (NMP) and growing availability of related tools and applications. An important point of such distributed performances is the nature of interaction between the perfo...
Conference Paper
Full-text available
Soundscape, as defined in ISO 12913-1, is understood as a perceptual construct whose evaluation is recommended by a triangulation between the components person, context and acoustic environment. With the increase of information about each of these components, the description of a specific soundscape gains validity. This paper is motivated by this a...
Conference Paper
Full-text available
In near-field HRTF measurements, where the sound source that is used for emanating the excitation signal is placed in the proximal range (<1 m) of the subject’s or the KEMAR’s head, care must be taken when deciding what kind of sound source to use. The ideal sound source should be infinitesimally small and omnidirectional, i.e. it should be a point...
Conference Paper
Active noise cancellation (ANC) headphones are becoming increasingly important as they can effectively attenuate perceived ambient noise. Fixed filters are commonly applied in commercially available ANC headphones due to their robustness. However, they are not capable of adapting to changes that occur in dynamic environments, resulting in degraded...
Conference Paper
Acoustic impedance tubes are commonly used to measure a test specimen's acoustic characteristics, such as reflection factor, absorption coefficient, or acoustic impedance, in combination with one or two condenser measurement microphones according to associated standards. In the development process of an impedance tube, the microphone diaphragm's si...
Article
Within the scope of the interdisciplinary project WEA-Akzeptanz, measurements of the sound emission of wind turbines were carried out at the Leibniz University Hannover. Due to the environment there are interfering components (e. g. traffic, birdsong, wind, rain, ...) in the recorded signals. Depending on the subsequent signal processing and analys...
Preprint
The ETSI has recently introduced the DECT-2020 New Radio (NR) as an IMT-2020 candidate technology for the mMTC and URLLC use cases. To consider DECT-2020 NR as an IMT-2020 technology, the ITU-R has determined different independent evaluation groups to assess its performance against the IMT-2020 requirements. These independent evaluation groups are...
Preprint
Training convolutional recurrent neural networks (CRNNs) on first-order Ambisonics signals is a well-known approach for estimating the direction of speech/sound arrival. In this work, we investigate whether increasing the order of Ambisonics signals up to the fourth order further improves the estimation performance of CRNNs. While our results on da...
Article
Full-text available
Reliability and user compliance of the applied sensor system are two key issues of digital healthcare and biomedical informatics. For gait assessment applications, accurate joint angle measurements are important. Inertial measurement units (IMUs) have been used in a variety of applications and can also provide significant information on gait kinema...
Conference Paper
Knowledge of room acoustic parameters such as frequency-and direction-dependent reflection coefficients, room volume, or geometric characteristics is important for the mod-eling of acoustic environments, e. g. to improve the plausibility of immersive audio in mixed reality applications or to transfer a physical acoustic environment into a completel...
Preprint
Full-text available
Modern communication systems organize receivers in blocks in order to simplify their analysis and design. However, an approach that considers the receiver design from a wider perspective rather than treating it block-by-block may take advantage of the impacts of these blocks on each other and provide better performance. Herein, we can benefit from...
Conference Paper
Achieving synchronicity and tempo stability during a Network Music Performance (NMP) is not straightforward under heavy network latency conditions. Previous work on Global Metronomes has shown that it is possible to provide a universal time-reference signal to the connected nodes of an NMP. This paper illustrates the effects of using a global metro...
Article
Full-text available
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...
Conference Paper
Distributed performances of musicians at distant locations are recently enjoying increasing interest due to the availability of larger bandwidths in network and mobile communication. Modern spatial audio capturing and multichannel reproduction techniques could make these performances an immersive and more realistic experience. But a bidirectional a...
Conference Paper
Virtual reality (VR)-based measurement systems have recently been developed to quickly measure individual head-related transfer functions (HRTFs) with arbitrary head movements. However, these systems are usually limited to estimate 2D HRTFs with a fixed distance between the loudspeaker and the subject. In the present study, a mixed reality (MR)-bas...
Conference Paper
The research project �LIPS� (Live Interactive PMSE Services 1)� aims at enabling tele-conferencing and distributed music performances in a most natural and im-mersive way. To provide a most plausible acoustic environment for the distributed interacting participants the Institut für Kommunikationstechnik (IKT) is working on Immersively Connected Roo...
Article
Full-text available
Perceived externalization is a relevant feature to create an immersive acoustic environment with headphone reproduction. In the present study, listener-specific acoustic transfer characteristics for an azimuth angle of 90° were modified to investigate the role of monaural spectral cues, interaural level differences (ILDs), and temporal fluctuations...
Conference Paper
The New York University and the Leibniz University Hannover are working on future immersive Networked Music Performances. One of the biggest challenges of audio data transmission over IP-based networks is latency, which can affect the interplay of the participants. In this contribution, two metronomes, utilizing the Global Positioning System to gen...
Conference Paper
Several rhythmic experiments with pairs drawn from a group of 23 subjects were performed to investigate the effect of a global metronome on the ensemble accuracy in Networked Music Performance (NMP). Artificial delays up to 91 ms were inserted into the audio transmission between the subjects. To investigate the dependencies between delay times, ens...
Conference Paper
This paper discusses the impact of Active Noise Cancellation (ANC) functionality on the acoustic impedance of headphones. We therefore show a method for the qualitative analysis of ANC headphone systems considering the occlusion effect (OE) and the “openness” of headphones. A total of 11 different headphones were measured on an acoustic impedance t...
Conference Paper
Non-individual head-related transfer functions (HRTFs) are commonly used in binaural rendering systems because measuring personal HRTFs is difficult in consumer scenarios. However, the perceived externalization of such rendered virtual sound images is usually low, especially for frontal and rear sound sources. This study proposed a method for impro...
Conference Paper
Closed-back headphones usually have a higher acoustic impedance if compared to open-back headphones. An increased acoustic impedance of headphones results in an increased sound pressure level at low frequencies while speaking. This causes an unnatural perception of the person’s own voice and is called the occlusion effect. This study investigates w...
Conference Paper
Reverberation time is an important room acoustical parameter that can be used to identify the acoustic environment, predict speech intelligibility and model the late reverberation for binaural rendering, etc. Several blind estimation algorithms of reverberation time have been proposed by analyzing recorded speech signals. Unfortunately, the estimat...
Conference Paper
Full-text available
Im Rahmen des vom Bundesministerium für Wirtschaft und Energie geförderten Projekts "LIPS-Live Interactive PMSE Services" arbeiten die Projektpartner aus Industrie und Forschung an einer immersiven audiovi-suellen Verbindung zwischen entfernten Räumlichkeiten, die es Menschen erlaubt in einer möglichst natürlichen Art und Weise miteinander kommuniz...
Conference Paper
Full-text available
Within the project "Live Interactive PMSE Services" (LIPS) the Institute of Communication Technology (IKT) is investigating novel interactive concepts for the immersive audiovisual linking of live events at different geographic locations. The project has the aim to develop solutions to improve access and participation of rural areas in the creative...
Conference Paper
The present study aims to investigate the influence of head movement on perceived externalization of a virtual sound source with various lengths of binaural room impulse responses (BRIRs). For this purpose, non-individual BRIRs were measured in a listening room and truncated to different lengths. Such modified BRIRs were convolved with speech and m...
Conference Paper
The emerging production of 3D audio content results in new challenges regarding the optimization of the production processes for VR/AR applications as well as for 3D music or film productions. This contribution presents a novel approach of a virtual audiovisual environment for 3D audio production based on a real listening room with different loudsp...
Conference Paper
The equalization of room acoustic influences on the sound transmission from a source (loudspeaker) to a receiver (listener/microphone) is a well known problem in audio engineering and academia that led to various equalization methods. However, many highly effective approaches lack of either robustness, practicability or usability. This paper thus p...
Article
Full-text available
Several studies show that the reverberation and spectral details in direct sounds are two essential cues for perceived externalization of virtual sound sources in reverberant environments. The present study investigated the role of these two cues in contralateral and ipsilateral ear signals on perceived externalization of headphone-reproduced binau...
Conference Paper
The study presented here investigates and compares three different methods regarding their suitability for determining the relative openness of circumaural and supraaural headphone types, namely: (1) the Pressure Division Ratio (PDR), (2) the Headphone Selection Criterion (HPC), and the Acoustic Impedance Curve (AIC). Measurements were conducted by...
Conference Paper
With the usage of future 4G+/5G technologies in wireless equipment for “Programme Making and Special Events” (PMSE) new innovative live services and applications are possible. In this paper our novel “Assistive Live Listening Service” is presented. The service provides individualized additional augmented audio content to every single listener at a...
Conference Paper
In the course of the project PMSE-xG an audience service for live events – the Assistive Live Listening Service – was developed. The service uses supplementary augmented audio content presented through transparent headphones to enhance the traditional audio playback of a PA loudspeaker system. Augmented audio content and ambient sound are temporall...
Article
Full-text available
It is well known that reverberation plays an important role in perceived externalization of three-dimensional audio over headphones. In the case of the externalization of a frontal sound source, the reverberation heard by both ears is equally important. Relatively little is known about the relative influence of reverberation at the contralateral ve...
Conference Paper
Our novel audience service for live events uses supplementary audio content presented through transparent headphones to enhance the traditional audio playback of a PA loudspeaker system. The service requires to estimate the propagation delay of sound waves from the PA loudspeakers to the listener in order to individually delay the supplementary aud...
Conference Paper
Two listening experiments were performed to investigate the influence of different trajectories of head and source movements on perceived externalization of a frontal sound source. In the first listening test, virtual moving sound sources with seven various trajectories were presented over headphones, while subjects’ heads remained stationary. In t...
Conference Paper
This engineering brief presents the novel multichannel audio laboratory for immersive media applications of the Institut für Kommunikationstechnik (IKT) with its varying multichannel loudspeaker arrangements and acoustical transparent projection screens of nearly 270°. We address the construction process and setup of the laboratory called Immersive...
Conference Paper
The knowledge about the physical properties of materials is of high importance for research and development in acoustics. A standardized method for the determination of acoustic impedances is the impedance measuring tube based on the transfer functions method according to ISO 10534-2. This engineering brief presents the development of an impedance...
Preprint
Cross-layer analysis has been gaining an increasing attention as a powerful tool to study and assess different quality-of-service (QoS) mechanisms in wireless networks. Regarding the physical and data-link layers, in this paper we provide a cross-layer study for visible light communication (VLC) systems operating under statistical QoS constraints,...
Article
Resource allocation and interference management are two main issues that need to be carefully addressed in visible light communication (VLC) systems. In this paper, we propose a resource allocation scheme that can also handle the inter-cell interference in a multi-user VLC system that employs orthogonal frequency division multiple access (OFDMA). P...
Article
The coexistence of radio frequency (RF) and visible light communications (VLC) in typical indoor environments can be leveraged to support vast user quality-of-service (QoS) needs. In this paper, we target a hybrid RF/VLC network in which data transmission is provided via either an RF access point or a VLC luminary based on a selection process. We e...
Conference Paper
Full-text available
In augmented reality audio applications a superposition of environmental sounds and supplementary audio content is used to create auditory enhancements for the listener in a broad range of use cases. In some use cases environmental sounds and supplementary content may be highly correlated, for example in audience services at live events, where a li...
Conference Paper
Full-text available
PMSE-xG is a research project studying 4G+/5G technologies and their usage in wireless equipment for "Programme Making and Special Events" (PMSE) applications. The PMSE-xG project has the vision of delivering important advancements in the creative industry ecosystem, focusing on audio and video applications as well as potential new audience service...
Article
Full-text available
In this paper we present two resource allocations techniques in a visible light communication network with overlapping coverage areas due to the use of access points. Particularly, the first approach exploits the rate maximization criteria, and then aims at maximizing the network rate under constraints on minimum and maximum rates, while the other...
Article
Full-text available
The co-deployment of radio frequency (RF) and visible light communications (VLC) technologies has been investigated in indoor environments to enhance network performances and to address specific quality-of-service (QoS) constraints. In this paper, we explore the benefits of employing both technologies when the QoS requirements are imposed as limits...
Conference Paper
Full-text available
Modern technologies, like virtual and augmented reality (VR/AR), lead to an increasing interest in reproducing 3D audio via headphones. This can be realized by using head-related transfer functions (HRTFs), which filter the incoming audio signals for each ear, depending on the direction of the sound source. The HRTFs depend highly on the shape of t...
Article
This paper presents a novel autonomous quality metric to quantify the rehabilitations progress of subjects with knee/hip operations. The presented method supports digital analysis of human gait patterns using smartphones. The algorithm related to the autonomous metric utilizes calibrated acceleration, gyroscope and magnetometer signals from seven I...
Conference Paper
Full-text available
Head-related transfer function (HRTF) is widely used for binaural sound reproduction over headphones. However , the acquisition of HRTFs using traditional measurement is usually a time-consuming task and can be only acquired at discrete directions. Recent work has shown, that the HRTF measurement can be speeded up and simplified via continuous acqu...
Article
Full-text available
In this paper, we consider a cognitive indoor visible light communications (VLC) system, comprised of multiple access points serving primary and secondary users through the orthogonal frequency division multiple access method. A cognitive lighting cell is divided into two non-overlapping regions that distinguish the primary and secondary users base...
Article
Full-text available
Recently, the demand for faster and more reliable data transmission has brought up complex communications systems. As a result, it has become more difficult to carry out closed-form solutions that can provide insight about performance levels. In this paper, different from the existing research, we study a cognitive radio system that employs hybrid-...
Article
Full-text available
Digital Radio Mondiale (DRM) is the universally, openly standardized digital broadcasting system for all frequencies including LW, MW, and SW as well as VHF bands. Alongside providing high audio quality to listeners, DRM satisfies technological requirements posed by broadcasters, manufacturers and regulatory authorities and thus bears a great poten...
Article
Full-text available
Recently, communication systems that are both spectrum and energy efficient have attracted significant attention. Different from the existing research, we investigate the throughput and energy efficiency of a general class of multiple-input and multiple-output systems with arbitrary inputs when they are subject to statistical quality-of-service (Qo...
Conference Paper
We consider a broadcast scenario where one transmitter communicates with two receivers under quality-of-service constraints. The transmitter initially employs superposition coding strategies with arbitrarily distributed signals and sends data to both receivers. Regarding the channel state conditions, the receivers perform successive interference ca...
Conference Paper
In this work, different virtual 3D audio scenarios with various moving sound sources and parameter setups (combinations of Doppler Effect, echo and reverberation) were simulated. The basic principle to create these scenarios presented by headphones is to filter a monophonic sound source with a Head-Related Transfer Function (HRTF). The HRTF, measur...
Conference Paper
Full-text available
Im Rahmen der Sanierung des Kuppelsaals, einem Konzertsaal im Congress Centrum Hannover mit Raum für 3600 Personen, wurde in Zusammenarbeit mit der Universität Hannover und der Firma Sennheiser electronic im Vorfeld der Sanierungsarbeiten ein raumakustisches Modell gebaut. Aufgrund der runden Primärform des Kuppelsaals und den daraus resultierenden...
Conference Paper
Full-text available
By application of pulse shaping, the FBMC (Filter Bank Multi Carrier) based offset-QAM-OFDM (OQAM-OFDM) modulation scheme offers a new degree of freedom in designing mobile communication systems. In this contribution we investigate the coexistence performance in terms of interference isolation of individually configured sub-bands, i.e. individual p...
Article
In this paper, we consider a two-user multiple access fading channel under quality-of-service (QoS) constraints. We initially formulate the transmission rates for both transmitters, where the transmitters have arbitrarily distributed input signals. We assume that the receiver performs successive decoding with a certain order. Then, we establish the...
Article
Recently, communications systems that are both energy efficient and reliable are under investigation. In this paper, we concentrate on an energy-detection-based transmission scheme where a communication scenario between a transmitter with one antenna and a receiver with significantly many antennas is considered. We assume that the receiver initiall...
Conference Paper
Full-text available
In this paper, we investigate effective capacity by modeling a cognitive radio broadcast channel with one secondary transmitter (ST) and two secondary receivers (SRs) under quality-of-service constraints and interference power limitations. We initially describe three different cooperative channel sensing strategies with different hard-decision comb...
Article
Full-text available
For future communication systems, filter bank multicarrier schemes offer the flexibility to increase spectrum utilization in heterogeneous wireless environments by good separation of signals in the frequency domain. To fully exploit this property for frame detection and synchronization, the advantage of the filter bank should be taken at the receiv...
Conference Paper
Full-text available
Faster than Nyquist (FTN) signaling is a nonorthogonal transmission scheme, in which the pulses appear faster than the rate known from the Nyquist criterion. The FTN signaling offers a higher data rate compared to Nyquist signaling but results in intersymbol interference due to the violation of the Nyquist theorem. In this paper, we investigate the...
Conference Paper
Full-text available
Currently deployed mobile communication systems are designed to deliver a proper Quality of Service (QoS) only in certain channel environments. The necessary channel adaptivity is utilized by adaptive modulation and coding schemes by giving up channel capacity. For transmissions in dispersive channels theory predicts a performance gain, when the pu...
Conference Paper
Full-text available
Theory predicts a gain in transmission performance, when adapting pulse shapes of Offset Quadrature Amplitude Modulation (OQAM) Orthogonal Frequency Division Multiplexing (OFDM) systems to delay and Doppler spread in doublydispersive channels. Here we investigate the quantitative gains in reconstruction quality and bit error rate (BER) with respect...
Article
Full-text available
In this paper, we investigate effective capacity by modeling a cognitive radio broadcast channel with one secondary transmitter (ST) and two secondary receivers (SRs) under quality-of-service constraints and interference power limitations. We initially describe three different cooperative channel sensing strategies with different hard-decision comb...
Article
This paper studies the use of directional antennas for received signal strength difference (RSSD) based localization using ultra-wideband and demonstrates the achievable accuracy with this localization method applied to UWB. As introduced in our previous work the RSSD localization is assisted with one Time Difference of Arrival (TDOA) estimation. T...
Conference Paper
Spectrum pooling offers increased flexibility for spectrum management and raises the spectrum usage rate in overpopulated parts of the spectrum. As a result, the noncontiguous OFDM (NC-OFDM) scheme has been proposed as an option to solve this issue. In this work, the performance of NC-OFDM will be measured and evaluated using softwaredefined radio...
Conference Paper
In this paper localization with Ultra-Wideband (UWB) technology based on fingerprinting approach using Received Signal Strength Difference (RSSD) is studied. Localization is assisted with single Time Difference of Arrival (TDOA) measurement. Position estimation is done using real measurement data. Index Terms ?? Localization, UWB, RSS, RSSD, TDOA
Conference Paper
Embedded cyclostationary signature (ECS) was recently developed as a useful tool for facilitating detection, classification, frequency acquisition and spectrum rendezvous for wireless devices or networks. In this paper, we present a novel technique for conveying extended information on ECS in multi-carrier signals. The extended information may incl...
Article
Full-text available
This paper presents a robust signal classification scheme for achieving comprehensive spectrum sensing of multiple coexisting wireless systems. It is built upon a group of feature-based signal detection algorithms enhanced by the proposed dimension cancelation (DIC) method for mitigating the noise uncertainty problem. The classification scheme is i...

Citations

... With the Headphone and Loudspeaker Test (HALT) Part I and Part II, we wanted to provide a tool to counter this predicament by remote testing playback device characteristics in Internet experiments. In the previous study, HALT Part I (Wycisk et al., 2022), we suggested a procedure to standardize level adjustments, detect stereo/mono playback and assess lower frequency limits of the playback devices. Subsequently, in HALT Part II, we focused on the identification of playback device types. ...
... A novel approach has been proposed [5] that overcomes the above-mentioned complexity and inefficiency problems for near-field HRTF measurement by using a continuously moving source. With this approach, near-field HRTF data with a high distance resolution can be obtained in a relatively short time. ...