AES San Francisco 2010
Paper Session P22

P22 - Enhancement of Audio Reproduction

Sunday, November 7, 9:00 am — 10:00 am (Room 236)

Richard Foss, Rhodes University - Grahamstown, South Africa

P22-1 Enhancing Stereo Audio with Remix CapabilityHyen-O Oh, LG Electronics Inc. - Seoul, Korea, Yonsei University, Seoul, Korea; Yang-Won Jung, LG Electronics Inc. - Seoul, Korea; Alexis Favrot, Illusonic LLC - Lausanne, Switzerland; Christof Faller, Illusonic LLC - Lausanne, Switzerland, EPFL, Lausanne, Switzerland
Many audio appliances feature capabilities for modifying audio signals, such as equalization, acoustic room effects, etc. However, these modification capabilities are always limited in the sense that they apply to the audio signal as a whole and not to a specific "audio object." We are proposing a scheme that enables modification of stereo panning and gain of specific objects inherent in a stereo signal. This capability is enabled (possibly stereo backwards compatibly) by adding a few kilobits of side information to the stereo signal. For generating the side information, the signals of the objects to be modified in the stereo signal are needed.
Convention Paper 8290 (Purchase now)

P22-2 Automatically Optimizing Situation Awareness and Sound Quality for a Sound Isolating EarphoneJohn Usher, Hearium Labs - San Francisco, CA, USA
Sound isolating (SI) earphones are increasingly used by the general public with portable media players in noisy urban and transport environments. The dangers of these SI earphones are becoming increasingly apparent, and an urgent review of their usage is being recommended by legislators. The problem is that user is removed from their local ambient scene: a reduction in their “situation awareness” that often leads to accidents involving unheard oncoming vehicles. This paper introduces a new automatic gain control system to automatically mix the ambient sound field with reproduced audio material. A discussion of the audio system architecture is given and an analysis of 20 different warning sounds is used to suggest suitable parameters.
Convention Paper 8291 (Purchase now)

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