The presented active road noise control system uses multichannel reference signals provided by digital automotive accelerometer sensors strategically placed on suspension or chassis to predict the structure-born road noise transferred from the tires into the cabin. Omni-directional microphones installed in the vehicle roofline, close to the passenger’s ears, are used as error microphones. Once activated, the system is minimizing the road noise and establishing a quite zone in the proximity of these locations. Only the standard built-in vehicle loudspeakers are used as actuators. The presented digital audio amplifier platform compromise the complete multichannel control and update algorithm processing in parallel with an audio processing. Several road noise scenarios from different vehicles are used to indicate state-of-the-art road noise reduction performance.
Authors:
Zollner, Jürgen, Zafeiropoulos, Nikos; Christoph, Markus; Rajan, Vasudev Kandade
Affiliation:
Harman/Becker Automotive Systems GmbH, Straubing, Germany
AES Conference:
2017 AES International Conference on Automotive Audio (August 2017)
Paper Number:
P2-3
Publication Date:
August 29, 2017
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.