This article presents a number of psycho-acoustic experiments for assessing the importance of phase information regarding the spatial qualities of synthesized sounds from voiced instruments. Binaural recorded sounds are synthesized using additive analysis/synthesis with and without phase information. The phase information is used in the synthesis to preserve the characteristics of the waveform....

The introduction of new techniques for audio reproduction such as binaural technology, Wave Field Synthesis and Higher Order Ambisonics is accompanied by a paradigm shift from channel-based to object-based transmission and storage of spatial audio. The separate coding of source signal and source location is not only more efficient considering the number of channels used for reproduction by larg...

Although the direct-to-reverberant energy ratio is an important cue for distance perception in rooms, it is not known how it is determined by the auditory system. One clue is provided by certain systematic errors made by listeners, which can be modelled by calculating the direct energy from the impulse response using a fixed time window (thus including some early reflections). This model cannot...

An eight-channel database of head-related impulse responses (HRIRs) and binaural room impulse responses (BRIRs) is introduced. The impulse responses (IRs) were measured with three-channel behind-the-ear (BTEs) hearing aids and an in-ear microphone at both ears of a human head and torso simulator. The database aims at providing a tool for the evaluation of multichannel hearing aid algorithms in ...

Bibliografische Information der Deutschen Bibliothek Die Deutsche Bibliothek verzeichnet diese Publikation in der Deutschen Nationalbibliografie; detaillierte bibliografische Da-ten sind im Internet über Acknowledgments This thesis was written during my time as research assistant at the Institute of Communication Systems and Data Processing (IND) at the Rheinisch-Westfälische Tech-nische Hochsc...

A measurement that can predict the perceived spatial impression of sounds and provide the results in an intuitive manner would be a useful tool to aid the development of sound recording and reproduction systems. In this paper the term ‘spatial impression’ is intended as an overall descriptor which refers to all perceivable attributes that can be described in terms of three physical dimensions, ...

A distortion-weighted glimpse proportion metric (BiDWGP) for predicting binaural speech intelligibility were evaluated in simulated anechoic and reverberant conditions, with and without a noise masker. The predictive performance of BiDWGP was compared to four reference binaural intelligibility metrics, which were extended from the Speech Intelligibility Index (SII) and the Speech Transmission I...

We introduce a new technique for the blind localization of several sound sources from two binaural signals. First, the binaural signals are organized as two-dimensional data where each sound source appears as a line. Second, the Hough transform is used to recognize these lines. The slopes of the lines give the mixing coefficients and directions of arrival (azimuths). Two variants of our techniq...

This paper describes a pilot study and main experiment that assess user performance at navigating to spatialised sound sources using a mobile audio augmented reality system. Experiments use a novel outdoor paradigm with an application-relevant navigation task to compare perception of two binaural rendering methods under several head-turn latencies. Binaural rendering methods examined were virtu...