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Variable Ratio Sample Rate Conversion Based on Fractional Delay Filter

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Języki publikacji
EN
Abstrakty
EN
In this paper a sample rate conversion algorithm which allows for continuously changing resampling ratio has been presented. The proposed implementation is based on a variable fractional delay filter which is implemented by means of a Farrow structure. Coefficients of this structure are computed on the basis of fractional delay filters which are designed using the offset window method. The proposed approach allows us to freely change the instantaneous resampling ratio during processing. Using such an algorithm we can simulate recording of audio on magnetic tape with nonuniform velocity as well as remove such distortions. We have demonstrated capabilities of the proposed approach based on the example of speech signal processing with a resampling ratio which was computed on the basis of estimated fundamental frequency of voiced speech segments.
Rocznik
Strony
231--242
Opis fizyczny
Bibliogr. 23 poz., rys., wykr.
Twórcy
autor
  • Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology G. Narutowicza 11/12, 80-233 Gdańsk, Poland
autor
  • ADVA Optical Networking Sp. z o.o. Śląska 35/37, 81-310 Gdynia, Poland
Bibliografia
  • 1. AES5-2008 (2008), AES recommended practice for professional digital audio - preferred sampling frequencies for applications employing pulse-code modulation, Technical report, Audio Engineering Society, revision of AES5-1997.
  • 2. Blok M. (2002a), Collective filter evaluation of an FSD filter-based resampling algorithm,, OSEE 2002, TechOnLine, Bedford, Massachusetts, USA, www.eetimes.com / design / signal-processing-dsp/4017905.
  • 3. Blok M. (2002b), Optimal fractional sample delay filter with variable delay, OSEE 2002, TechOnLine, Bedford, Massachusetts, USA, www. eetimes. com / design / analog-design/4018005.
  • 4. Blok M. (2005), Farrow structure implementation of fractional delay filter optimal in Chebyshev sense, Proceedings of SPIE, volume 6159, 61594K, Wilga, Poland.
  • 5. Blok M. (2012a), Fractional delay filter design for sample rate conversion, Proceedings of FedCSIS’2012, pp. 701-706, Wroclaw, Poland.
  • 6. Blok M. (2012b), Fractional delay filter design with extracted window offsetting, Proceedings of MixDes’2012, pp. 489-494, Warsaw, Poland.
  • 7. Blok M. (2013), Comments on “Closed Form Variable Fractional Time Delay Using FFT”, IEEE Signal Processing Letters, 20, 8, 747-750.
  • 8. Blok M., Rojewski M., Sobociński A. (2004), A new algorithm for pitch period estimation [in Polish], Zeszyty Naukowe, Faculty of ETI, Gdańsk University of Technology, Technologie Informacyjne, 3, 125-134.
  • 9. Ciarkowski A., Czyzewski A., Dziubiński M., Kaczmarek A., Kulesza M., Maziewski P., Kostek B. (2005), Methods for detection and, removal of parasitic frequency modulation in audio recordings, AES Conference: 26th International Conference: Audio Forensics in the Digital Age, paper no. 3-3.
  • 10. Czyzewski A., Ciarkowski A., Kaczmarek A., Kotus J., Kulesza M., Maziewski P. (2007), DSP techniques for determining „wow” distortion, Journal of the Audio Engineering Society, 55, 4, 266-284.
  • 11. Czyzewski A., Maziewski P., Kupryjanow A. (2010), Reduction of parasitic pitch variations in archival musical recordinqs, Signal Processing, 90, 4, 981-990.
  • 12. Evangelista G. (2003), Design of digital systems for arbitrary sampling rate conversion, Signal Processing, 83, 2, 377-387.
  • 13. FARROW C.W. (1988), A continuously variable digital delay element, Proceedings of ISCAS’88, pp. 2641- 2645, Espoo, Finland.
  • 14. HARRIS F.J. (1997), Performance and, design of Farrow filter used for arbitrary resampling, Proceedings of DSP’97, 2, pp. 595-599, Santorini, Greece.
  • 15. HERMANOWICZ E. (1998), A nearly optimal variable fractional delay filter with, extracted Chebyshev window, Proceedings of ICECS’98, 2, pp. 401-404, Lisboa, Portugal.
  • 16. Hermanowicz E. (2004), On designing a wideband fractional delay filter using the Farrow approach, Proceedings of EUSIPCO’2004, pp. 961-964, Austria.
  • 17. Hermanowicz E., Rojewski M., Blok M. (2000), A sample rate converter based, on a fractional delay filter bank, Proceedings of ICSPAT 2000, Dallas, Tx, USA.
  • 18. Laakso T.I., Valimaki V., Karjalainen M., Laine U.K. (1996), Splitting the unit delay - tools for fractional delay filter design, IEEE Signal Processing Magazine, 13, 1, 30-60.
  • 19. Maziewski P. (2006), Wow defect reduction based on interpolation techniques, Bulletin of the Polish Academy of Science: Technical Sciences, 54, 469-477.
  • 20. Rajamani K., Yhean-Sen L., Farrow C.W. (2000), An efficient algorithm for sample rate conversion from CD to DAT, IEEE Signal Processing Letters, 7, 10, 288-290.
  • 21. Tarczynski A., Kozinski W., Cain G.D. (1994), Sampling rate conversion using fractional-sample delay, Proceedings of ICASSP’94, pp. 285-288, Adelaide, Australia.
  • 22. Yardim A., Cain G.D., Henry P. (1996), Optimal two-term offset windowing for fractional delay, Electronics Letters, 32, 6, 526-527.
  • 23. Yardim A., Cain G.D., Lavergne A. (1997), Performance of fractional-delay filters using optimal offset windows, Proceedings of ICASSP’97, 3, pp. 2233-2236, Munich, Germany.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-ca467dc4-ce3b-471b-9319-ae5dd4778342
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