Wow defect reduction based on interpolation techniques

• Autorzy: Maziewski P.
• Języki publikacji: EN

Abstrakty

EN

In this paper the capacity of non-uniform sampling rate conversion techniques, invo1ving different interpolation methods, aimed at wow defect reduction, is examined. Involved are: linear interpolation, tour po1ynomial-based interpolation methods and the windowed sincbased method. The examined polynomial methods are: Lagrange interpolation, polynomial fitting with additional noise reduction, Hermitan and Spline. The performance of an artificially distorted audio signal, restored using non-uniform resampling, is evaluated on the basis of standard audio defect measurement criteria and compared for all of the aforementioned interpolation methods. The chosen defect descriptors are: total harmonic distortion, total harmonic distortion plus noise and signal to noise ratio.

Słowa kluczowe

EN

Wow defect reduction; audio signal restoration; linear interpolation; polynomial interpolation; sincbased interpolation; nonuniform sampling rate conversion

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2006
• Tom: Vol. 54, nr 4
• Strony: 469--477
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Maziewski P.

• Multimedia Systems Department, Gdańsk University of Technology, 11/12 Narutowicza St., 80-952 Gdańsk, Poland,

Bibliografia

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• [3] A. Czyzewski, M. Dziubinski, A. Ciarkowski, M. Kulesza, P. Maziewski and J. Kotus, ”New algorithms for wow and flutter detection and compensation in audio”, Proc. 118 AES Conv. 6353, (2005).
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• [10] C. de Boor, A Practical Guide to Splines, Springer-Verlag, Berlin, 1978.
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• [13] B. Metzler, Audio Measurement Handbook, Audio Precision, 130–145 (1973).