DocumentCode
3150445
Title
Implementation challenges for feedback active noise cancellation
Author
Krishnamurthy, Nitish ; Mansour, Mohamed ; Cole, Randy
Author_Institution
Syst. & Applic. R&D Center, Texas Instrum. Inc., Dallas, TX, USA
fYear
2012
fDate
25-30 March 2012
Firstpage
1649
Lastpage
1652
Abstract
This work describes the factors limiting the performance in practical implementations of digital active noise cancellation (ANC) in commercial systems. This includes the codec delay, the secondary path variability, and the acoustic limitations. The causes for each limiting factor are studied and solutions are proposed that significantly improve system performance and robustness.
Keywords
audio coding; audio signal processing; delays; microphones; signal denoising; ANC; acoustic limitations; codec delay; digital active noise cancellation; feedback active noise cancellation; ideal single microphone ANC system; secondary path variability; Codecs; Delay; Headphones; Microphones; Noise cancellation; Prediction algorithms; Active noise cancellation; FXLMS; analog-to-digital; audio; delay; headphone;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on
Conference_Location
Kyoto
ISSN
1520-6149
Print_ISBN
978-1-4673-0045-2
Electronic_ISBN
1520-6149
Type
conf
DOI
10.1109/ICASSP.2012.6288212
Filename
6288212
Link To Document