Aktif Gürültü Kontrolü (ANC) Sisteminde Mikrofon ile Hoparlör Arasindaki Mesafenin Sistem Başarisina Etkisi

Abstract

Active Noise Control (ANC) systems have increasingly become a prominent solution for reducing in-vehicle noise. This study investigates the impact of the distance between the microphone and the speaker on the performance of ANC systems. The positioning within the vehicle is a critical factor that directly affects both the accurate detection of noise frequencies by the microphone and the effective propagation of the anti-noise signal. Experimental studies and simulations were conducted on a system built using the 'Sigma Studio' software and Analog Devices 'ADAU1467'DSP chip to analyze the noise cancellation performance as a function of varying the distance between the microphone and the speaker. The results demonstrate that optimizing this distance yields more efficient noise cancellation, particularly for low frequency noises. These findings emphasize the significance of microphone and speaker placement in the design of in-vehicle ANC systems and provide strategies for improving future system efficiency. © 2024 IEEE.