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Wang, Liang; Gan, Woon Seng; Kuo, Sen M. (2008)
Publisher: Hindawi Publishing Corporation
Journal: Advances in Acoustics and Vibration
Languages: English
Types: Article
Subjects: Acoustics. Sound, QC221-246, Article Subject
With the advancement of digital signal processing technologies, consumers are more concerned with the quality of multimedia entertainment in automobiles. In order to meet this demand, an audio enhancement system is needed to improve bass reproduction and cancel engine noise in the cabins. This paper presents an integrated active noise control system that is based on frequency-sampling filters to track and extract the bass information from the audio signal, and a multifrequency active noise equalizer to tune the low-frequency engine harmonics to enhance the bass reproduction. In the noise cancellation mode, a maximum of 3 dB bass enhancement can be achieved with significant noise suppression, while higher bass enhancement can be achieved in the bass enhance mode. The results show that the proposed system is effective for solving both the bass audio reproduction and the noise control problems in automobile cabins.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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