SINGLE-CHANNEL ACTIVE NOISE CANCELLER USING THE FIXED POINT DSP APLLIED TO THE CONTROL OF NOISE COMPRESSOR

Authors

  • Paulo Renato Galveias Lopes Lopes Unesp, Brazil
  • FRANCISCO JOSE GRANDINETTI Unesp, Brazil
  • Thais dos Santos Castro Castro Unesp, Brazil
  • Marcelo Sampaio Martins Martins Unesp, Brazil
  • Alvaro manoel de Souza Soares Soares Unesp, Brazil
  • Erica Ximenes Dias Dias Unesp, Brazil
  • Luis Fernando de Almeida Almeida Unitau,Brazil

DOI:

https://doi.org/10.18687/LACCEI2025.1.1.2076

Keywords:

cancellation system, Digital Signal Processor (DSP), compressor

Abstract

This paper reports the performance of a single-channel active noise compressor cancellation system. The active noise canceller (ANC) was developed based on a PC-hosted Analog Devices Inc., a low-cost 16-bit fixed-point Digital Signal Processor (DSP), mounted in a two-channel analog I/O board connected to the real world via standard consumer audio components. The algorithm implemented here was the single-channel filtered-X LMS. In the first part of this paper, the noise generated by the compressor will be characterized, followed by the selection of a coherent reference sensor for the ANC implementation. Finally, the noise attenuation achieved with the application of the ANC is presented.

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Published

2025-07-27

Issue

Vol. 1 No. 12 (2025): LACCEI 2025

Section

Articles

Copyright

Copyright (c) 2025 LACCEI

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How to Cite

Lopes, P. R. G. L., GRANDINETTI, F. J., Castro, T. dos S. C., Martins, M. S. M., Soares, A. manoel de S. S., Dias, E. X. D., & Almeida, L. F. de A. (2025). SINGLE-CHANNEL ACTIVE NOISE CANCELLER USING THE FIXED POINT DSP APLLIED TO THE CONTROL OF NOISE COMPRESSOR. LACCEI, 1(12). https://doi.org/10.18687/LACCEI2025.1.1.2076

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