Brass player’s mask parameters obtained by inverse method

IF 1 3区 物理与天体物理 Q4 ACOUSTICS Acta Acustica Pub Date : 2023-01-01 DOI:10.1051/aacus/2023022
S. Maugeais, J. Gilbert
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引用次数: 0

Abstract

An optimization method is proposed to find mask parameters of a brass player coming from a one degree of freedom lip model, with only constant mouth pressure and periodic mouthpiece pressure as input data, and a cost function relying on the waveform and the frequency of the signal. It delivers a set of parameters called 𝒞-admissible, which is a subset of all mask parameters that allow the inverse problem to be well defined up to an acceptable precision. Values for the mask parameters are found that give a good aproximation of real signals, with an error on the playing frequency of less than 5 cents for some notes. The evolution of the mask parameters is assessed during recordings with real musicians playing bend notes and their effects on the playing frequency are compared to the theoretical change on a model.
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用反求法得到铜管演奏者的掩模参数
提出了一种基于单自由度唇形模型的铜管乐手掩模参数优化方法,该模型只以恒定口压和周期性口压作为输入数据,并基于信号的波形和频率建立代价函数。它提供了一组名为𝒞-admissible的参数,这是所有掩码参数的子集,这些参数可以很好地定义逆问题,达到可接受的精度。发现掩模参数的值很好地逼近了真实信号,对某些音符的播放频率误差小于5美分。在真实音乐家演奏弯音的录音过程中评估掩模参数的演变,并将其对演奏频率的影响与模型上的理论变化进行比较。
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来源期刊
Acta Acustica
Acta Acustica ACOUSTICS-
CiteScore
2.80
自引率
21.40%
发文量
0
审稿时长
12 weeks
期刊介绍: Acta Acustica, the Journal of the European Acoustics Association (EAA). After the publication of its Journal Acta Acustica from 1993 to 1995, the EAA published Acta Acustica united with Acustica from 1996 to 2019. From 2020, the EAA decided to publish a journal in full Open Access. See Article Processing charges. Acta Acustica reports on original scientific research in acoustics and on engineering applications. The journal considers review papers, scientific papers, technical and applied papers, short communications, letters to the editor. From time to time, special issues and review articles are also published. For book reviews or doctoral thesis abstracts, please contact the Editor in Chief.
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