{"title":"基于自动微分的MEMS扬声器等效电路模型梯度优化","authors":"Oliviero Massi;Alessandro Ilic Mezza;Riccardo Giampiccolo;Lelio Casale;Alberto Bernardini","doi":"10.1109/TCSII.2025.3603686","DOIUrl":null,"url":null,"abstract":"Micro-Electro-Mechanical Systems (MEMS) loudspeakers represent a promising solution to meet the growing demand for compact, portable consumer audio devices with integrated sound reproduction capabilities. In this context, the availability of accurate and computationally efficient Lumped-Element Models (LEMs) can greatly accelerate MEMS loudspeaker design and support the development of digital signal processing techniques aimed at enhancing audio performance. In this work, we propose a framework based on Automatic Differentiation (AD) to optimize the parameters of differentiable LEMs in a fully data-driven manner using standard gradient-based optimization methods. Specifically, we focus on tuning the parameters of an ad hoc linear equivalent circuit model for a commercially available MEMS loudspeaker intended for free-field applications.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 10","pages":"1468-1472"},"PeriodicalIF":4.9000,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Gradient-Based Optimization of MEMS Loudspeaker Equivalent Circuit Models via Automatic Differentiation\",\"authors\":\"Oliviero Massi;Alessandro Ilic Mezza;Riccardo Giampiccolo;Lelio Casale;Alberto Bernardini\",\"doi\":\"10.1109/TCSII.2025.3603686\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Micro-Electro-Mechanical Systems (MEMS) loudspeakers represent a promising solution to meet the growing demand for compact, portable consumer audio devices with integrated sound reproduction capabilities. In this context, the availability of accurate and computationally efficient Lumped-Element Models (LEMs) can greatly accelerate MEMS loudspeaker design and support the development of digital signal processing techniques aimed at enhancing audio performance. In this work, we propose a framework based on Automatic Differentiation (AD) to optimize the parameters of differentiable LEMs in a fully data-driven manner using standard gradient-based optimization methods. Specifically, we focus on tuning the parameters of an ad hoc linear equivalent circuit model for a commercially available MEMS loudspeaker intended for free-field applications.\",\"PeriodicalId\":13101,\"journal\":{\"name\":\"IEEE Transactions on Circuits and Systems II: Express Briefs\",\"volume\":\"72 10\",\"pages\":\"1468-1472\"},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2025-08-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Circuits and Systems II: Express Briefs\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/11143572/\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Circuits and Systems II: Express Briefs","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/11143572/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Gradient-Based Optimization of MEMS Loudspeaker Equivalent Circuit Models via Automatic Differentiation
Micro-Electro-Mechanical Systems (MEMS) loudspeakers represent a promising solution to meet the growing demand for compact, portable consumer audio devices with integrated sound reproduction capabilities. In this context, the availability of accurate and computationally efficient Lumped-Element Models (LEMs) can greatly accelerate MEMS loudspeaker design and support the development of digital signal processing techniques aimed at enhancing audio performance. In this work, we propose a framework based on Automatic Differentiation (AD) to optimize the parameters of differentiable LEMs in a fully data-driven manner using standard gradient-based optimization methods. Specifically, we focus on tuning the parameters of an ad hoc linear equivalent circuit model for a commercially available MEMS loudspeaker intended for free-field applications.
期刊介绍:
TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes:
Circuits: Analog, Digital and Mixed Signal Circuits and Systems
Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic
Circuits and Systems, Power Electronics and Systems
Software for Analog-and-Logic Circuits and Systems
Control aspects of Circuits and Systems.