Audio scene cartography for real or simulated stereo recordings is presented. This audio scene analysis is performed doing successively: a perceptive 10-subbands analysis, calculation of temporal laws for relative delays and gains between both channels of each subband using a short-time cons\-tant scene assumption and channels inter-correlation which permit to follow a mobile source in its moves, calculation of global and subbands histograms whose peaks give the incidence information for fixed sources. Audio scenes composed of 2 to 4 fixed sources or with a fixed source and a mobile one have been already successfully tested. Further extensions and applications will be discussed. Audio illustrations of audio scenes, subband analysis and demonstration of real-time stereo recording simulations will be given.Paper 6340 presented at the 118th Convention of the Audio Engineering Society, Barcelona, 2005
翻译:本文提出了一种对真实或模拟立体声录音进行音频场景制图的方法。该音频场景分析依次执行以下步骤:感知10子带分析;基于短时恒定场景假设与通道互相关,计算各子带两个通道间相对延迟与增益的时变规律,从而实现对移动声源运动轨迹的跟踪;计算全局直方图与子带直方图,其峰值提供固定声源的方位信息。已成功测试了由2至4个固定声源或包含一个固定声源与一个移动声源组成的音频场景。本文将讨论进一步的扩展与应用方向,并提供音频场景示例、子带分析示例以及实时立体声录音仿真的演示。本文为2005年巴塞罗那第118届音频工程学会会议宣读论文6340。