3-D Sound Spatialization using Ambisonic Techniques
3-D Sound Spatialization using Ambisonic Techniques
复制标题
使用 Ambisonic 技术实现 3-D 声音空间化
DOI：
10.2307/3680991
复制
发表时间：
1995
影响因子：
--
通讯作者：
A. Myatt
中科院分区：
文献类型：
--
作者：
D. Malham;A. Myatt
对声音空间化的探索是许多电声音乐作曲家和演奏家关注的问题。双声道立体声技术在这一流派中被广泛使用，但更复杂的声音空间化形式往往限于那些能够获得重要技术资源的人。最近的技术发展已经增加了对高质量、多声道音频系统和计算机音乐工作站的访问，并且已经确定了声音空间化的新应用：虚拟现实、多媒体计算、电影、视频和计算机游戏都可以使用某种类型的环绕效果。此外，计算能力的提高导致了能够支持多个音频通道所需的数据带宽的工作站的生产。所有这些因素导致了对声音空间化技术的重新兴趣，为该领域的加速发展提供了巨大的潜力。高保真度立体声是一种强大的声音空间化技术。它可以允许录音，操纵和合成自然和人工构建的三维声场。在这篇文章中，我们将介绍的结果，实验和研究的应用高保真度立体声电子音乐的创作和表演。我们还提出了立体混响编码和解码技术的Csound实现，这些技术可以在支持四个或更多个独立音频输出通道的任何计算平台上使用。我们的希望是，这些技术将是一个有用的资源，为那些希望实验与声音空间化，他们在这里的介绍将鼓励进一步的发展。本文在一个历史和技术背景下考察了各种空间化技术，确定了一些特定方法的优点和缺点。这提供了对立体混响理论的回顾的基础，该理论还描述了使用这种技术可能的几种先进的空间处理方法。我们继续讨论实验结果和有关的电声音乐表演的高保真度立体声技术的使用组成的考虑。
The exploration of sound spatialization is a preoccupation of many composers and performers of electroacoustic music. Two-channel stereo techniques are widely used in the genre, but more sophisticated forms of sound spatialization are often restricted to those with access to significant technical resources. Recent technological developments have increased access to high-quality, multichannel audio systems and computer music workstations, and new applications for sound spatialization have been identified: virtual reality, multimedia computing, films, videos, and computer games may all employ surround-effects of some type. In addition, increased computing power has led to the production of workstations that can support the data bandwidth required for multiple audio channels. All of these factors have led to a renewed interest in sound spatialization techniques, providing enormous potential for accelerated development of the field. Ambisonics is a powerful technique for sound spatialization. It can allow recording, manipulation, and composition with naturally and artificially constructed three-dimensional sound fields. In this article we will present the results of experimentation and research into the application of ambisonics to the composition and performance of electroacoustic music. We also present Csound implementations of ambisonic encoding and decoding techniques that can be used on any computing platform supporting four or more independent audio output channels. Our hope is that these techniques will be a useful resource for those wishing to experiment with sound spatialization, and that their presentation here will encourage further developments. This article examines a variety of spatialization t hniques within a historical and technical cont xt, identifying some of the advantages and disadvantages of specific methods. This provides the basis for a review of ambisonic theory, which additionally describes several advanced spatialprocessing methods that are possible with this technique. We go on to discuss experimental results and compositional considerations related to the use of ambisonic techniques for electroacoustic music performance.