Sound Components

The Universal Audio Architecture (UAA) describes class driver architecture for personal computer (PC) audio solutions supported in the next version of the Microsoft Windows operating system, codenamed Windows Longhorn. This paper provides information about how the USB Audio specifications are implemented by Usbaudio.sys, the Microsoft UAA class driver for USB audio devices. tech news

The Universal Audio Architecture (UAA) describes class driver architecture for personal computer (PC) audio solutions supported in the next version of the Microsoft Windows operating system, codenamed Windows Longhorn. This paper provides an overview of UAA for system manufacturers and manufacturers of audio devices. The goal of UAA is to provide users with a class driver architecture that provides basic audio functionality in the operating system and offers an alternative to third-party drivers for users who experience compatibility problems with audio on their systems or who may not need advanced audio features. tech news

Computers today, while shipping with audio controllers and sometimes speakers, are not designed for the baseline communications experience, which includes both microphone and speaker design that are optimized for communication. This paper provides information about communications for the Microsoft Windows family of operating systems. It provides guidelines for ODMs and OEMs to implement baseline audio on the computer designed for communication. tech news

This paper presents a new simple method for achieving feature correspondence across a pair of images which requires no calibration information and draws from the method proposed by Scott and Longuet Higgins. Despite the well-known combinatorial complexity of the problem, this work shows that an acceptably good solution can be obtained directly by singular value decomposition of an appropriate image-based correspondence strength matrix. The paper includes several experiments and discusses the method and draws comparisons with a related relaxation-based method by. Given its tremendous performance / complexity figure, the method is particularly suitable for research purposes where an off the shelf but reliable feature correspondence is needed. For this reason, a succinct MATLAB implementation of the method is included and a C version will be soon available on the WEB. tech news

This document comprises a collection of earlier BBC internal papers relating to the specification of acoustic criteria for building projects. Those papers were originally produced by the BBC's Acoustics Committee. They were intended to form guidance notes for use by project managers and other people with responsibilities for designing, commissioning or specifying acoustic aspects of new and refurbished areas. This collection has been re-issued to provide a convenient point of reference for project teams working on new developments. tech news