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 ...

Binaural noise-reduction techniques based on Multichannel Wiener filters (MWF) have been reported as promising candidates to be used in binaural hearing aids because of their efficient noise reduction at any arbitrary direction of arrival of the target signal and the preservation of localization cues. The implementation of these techniques have been reported for FFT-based processing and wavelet...

Auralization and binaural technology is a strongly growing field in acoustics and audio signal processing [1]. Measurements and models of head-related transfer functions (HRTF) of human subjects or dummy heads are the source of information for the research of auralization and spatial hearing (see, e.g., [2], for a good review on these subjects). The information contained in HRTFs measured at va...

Binaural hearing offers several advantages over monaural hearing including improved speech understanding in the presence of background noise and the ability to localize the source of sounds. Patients who have undergone unilateral cochlear implantation perform poorly at these binaural tasks despite their improved hearing capabilities. Bilateral cochlear implants have restored these abilities in ...

PURPOSE To verify the speech recognition processes in a monoaural task and in a binaural integration task with dichotic listening, and to compare them to the cognitive processing in elderly subjects pre and post hearing aid acclimatization. METHODS Participants were 60 elderly subjects of both genders, ranging in age from 61 to 85 years. They were evaluated for cognitive aspects by means of t...

In this study of the precedence effect in binaural hearing, subjects adjusted the interaural delay of a wideband acoustic pointer to match the perceived intracranial position of transient test stimuli presented over headphones. The test stimuli had leading and lagging components (either brief noise bursts or clicks), each with its own interaural delay. In some test conditions, the leading and l...

This paper describes the application of a small hearing aid that precisely fits into a subject's ear canal (complete-in-canal, or CIC). The bandwidth of the device is about 7 kHz. The system allows for selective manipulation of the different acoustic cues used for sound localization. The potential of the system is illustrated by robustly interchanging the input of the left and right ear, and co...