We will present a first step in design of a broadband physical model for microphones. Within the proposed model, classical directivity patterns (omnidirectional, bidirectional and cardioids family) are refound as limit cases: monochromatic excitation, low frequency and far-field approximation. Monophonic pieces of music are used as sources for the model so we can listen the simulation of the associated recorded sound field in realtime thanks to a Max/MSP application. Listening and subbands analysis show that the directivity is a function of frequential subband and source location. This model also exhibits an interesting proximity effect. Audio demonstrations will be given.Paper 6638 presented at the 120th Convention of the Audio Engineering Society, Paris, 2006
翻译:本文将介绍麦克风宽带物理模型设计的第一步。在该模型中,经典指向性模式(全向型、双向型及心形族)作为极限情况被重新定义:即单色激发、低频及远场近似条件。我们采用单声道音乐片段作为模型输入源,并通过Max/MSP应用程序实现相关录制声场模拟的实时监听。聆听及子带分析表明,指向性取决于频率子带与声源位置。该模型还展现出有趣的邻近效应。音频演示将在会议期间提供。本文发表于2006年巴黎第120届音频工程学会会议(论文编号6638)。