Development and application of audio-integrated ANC system for infant incubators

• Autores: Sen M. Kuo, Lichuan Liu, Shruthi Gujjula
• Localización: Noise Control Engineering Journal, ISSN 0736-2501, Vol. 58, Nº. 2, 2010, págs. 163-175
• Idioma: inglés
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• Resumen

  • This paper presents the application of audio-integrated active noise control (ANC) system for infant incubators. The integrated ANC algorithm is developed to reduce external harmful noises while playing healthy intrauterine sounds inside the incubators. Real-time experiments are conducted to evaluate the performance of an integrated system using a Giraffe incubator from GE Healthcare. The noise reduction achieved by ANC systems at uniformly-distributed three-dimensional locations inside the incubator is presented in tables and graphically. The single-channel ANC system is integrated with intrauterine sounds to mask residual noise and create a prenatal environment for the infants, and also enhance the performance of the incubator ANC system with time-varying secondary paths.