journal article·2023-12-01Open access

A new complex mapping method of neural networks used in sound source localization

Zeming Jian, Junhao Hu, Lei Nie, Mengran Liu

AIP Advances· Volume 13· Issue 12

Abstract

Sound source localization has a wide range of application prospects in many fields, such as smart home and audio monitoring. Traditional methods are difficult to achieve accurate location in the face of multi-path reflection, reverberation, and ambient noise. In this paper, a complex mapping conversion method for sound source location is proposed. By using complex-valued convolutional neural networks to fuse the amplitude and phase information of the data, a more accurate and comprehensive analysis can be carried out to improve its robustness and realize the accurate location of the sound source. The sound source location method based on complex-valued convolutional neural networks is studied, and the complex mapping principle is analyzed. Simulation and experimental studies were carried out, and the results of simulation and experiment are basically consistent. In the experiment, the positioning accuracy of the complex mapping method is 9.49% higher than that of the absolute value method and 15.81% higher than that of the phase angle method. In addition, its localization success rate, respectively, increased by 4.9% and 8.6% compared to two other methods. This paper opens up a new way for the application of complex-valued convolutional neural networks in sound source localization.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Speech and Audio Processing · Underwater Acoustics Research · Music and Audio Processing

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Hubei Key Laboratory of Modern Manufacturing Quantity Engineering, School of Mechanical Engineering, Hubei University of Technology , Wuhan, Hubei 430068, China

Funding

National Natural Science Foundation of China · Hubei Provincial Natural Science Foundation of China · Science and Technology Research Project of Education Department of Hubei Province · Green Industry Technology Leading Project of Hubei University of Technology

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