Multi-channel active noise cancellation using the DSP56001 (digital signal processor)

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

The authors report on the performance of a portable active noise cancellation (ANC) system based around a PC hosted 20-MHz Motorola DSP56001 processor with a four-channel analog input/output (I/O) board connected to the real world via standard consumer audio components. The system will perform active noise cancellation over the frequency range of 65-500 Hz. Quantitative results are presented for the cancellation of single tone noise and of narrowband noise, and a measure of the ANC power spectrum is calculated for various parameters of the filtered-X LMS algorithm in different acoustic environments. Qualitative results based on human hearing perception of the attenuation of various narrowband and real world noise sources are also discussed.
Original languageEnglish
Title of host publication1993 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP-93.
Place of PublicationNew York
PublisherIEEE
Pages185-188
Number of pages4
Volume1
ISBN (Print)0780374029
DOIs
Publication statusPublished - 1993
Event1993 IEEE International Conference on Acoustics, Speech, and Signal Processing - Minneapolis, MN, United States
Duration: 27 Apr 199330 Apr 1993

Conference

Conference1993 IEEE International Conference on Acoustics, Speech, and Signal Processing
Abbreviated titleICASSP 1993
CountryUnited States
CityMinneapolis, MN
Period27/04/9330/04/93

Keywords

  • noise cancellation
  • digital signal analysis
  • noise abatement
  • digital signal processing chips

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