The ability of listeners to detect, identify, and monitor multiple simultaneous speech signals was measured in free field and virtual acoustic environments. Factorial combinations of four variables, including audio condition, spatial condition, the number of speech signals, and the sex of the talker were employed using a within-subjects design. Participants were required to detect the presentat...

Time difference of arrival (TDOA) is commonly used to estimate the azimuth of a source in a microphone array. The most common methods to estimate TDOA are based on finding extrema in generalized crosscorrelation waveforms. In this paper we apply microphone array techniques to a manikin head. By considering the entire cross-correlation waveform we achieve azimuth prediction accuracy that exceeds...

An improved method for phoneme recognition in noise is presented using an auditory image model and cross-correlation in a binaural approach called the binaural auditory image model (BAIM). Current binaural methods are explained as background to BAIM processing. BAIM and a variation of the cocktail-party-processor incorporating the auditory image model are applied in phoneme recognition experime...

Binaural synthesis (BS) is widely used as a tool aiming at eliciting specific auditory perceptions by means of headphones, ideally exactly as elicited by a real or hypothetical reference scene. In this contribution, an evaluation method is proposed, addressing the synthesis quality by comparing the minimum audible angles (MAAs) measured in the synthesized versus the corresponding real situation...

Most binaural 3D sound implementations use large databases with pre-recorded transfer functions, which are mostly prohibitive for real time embedded applications. This article focus on a parametric approach proposal, opening space for customizations and to add new processing blocks easily. In this work we show the feasibility of a parametric binaural architecture for dynamic sound localization ...

Some researchers have hypothesized the existence of a specialized brain unit for beat perception in music which is directly influenced by vestibular stimulation arising from motion. They also suggest that the unit is involved in the entrainment of movement to music. However, the data used to support this hypothesis may be explained by a simpler phenomenon: the audiogravic and audiogyral effect....

A structural model is presented for synthesizing binaural sound from a monaural source. The model produces well-controlled vertical as well as horizontal effects. The model is based on a simplified time-domain description of the physics of wave propagation and diffraction. The components of the model have a one-to-one correspondence with the physical sources of sound diffraction, delay and refl...

A speech separation system is described in which sources are represented in a joint interaural time difference-fundamental frequency (ITD-F0) cue space. Traditionally, recurrent timing neural networks (RTNNs) have been used only to extract periodicity information; in this study, this type of network is extended in two ways. Firstly, a coincidence detector layer is introduced, each node of which...

The human auditory system is particularly sensitive to spatial information conveyed in the first two milliseconds of an auditory event. Therefore, in order to analyse a stream of binaural data in a perceptually relevant way, it is important to determine quickly and precisely the onset of each event within a data stream. This paper details the design of an auditory onset detector which is intend...