• Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 
Journal of the Acoustical Society of America / Volume 131 / Issue 2 / JASA EXPRESS LETTERS

Modification of the loop filter design for a plucked string instrument

J. Acoust. Soc. Am. Volume 131, Issue 2, pp. EL126-EL132 (2012); (7 pages)

Sangjin Cho, Hyungseob Han, Jongmyon Kim, Uipil Chong, and Sangbock Cho

School of Electrical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan, 680-749, South Korea sangjin.cho@gmail.com, overhs@naver.com, jongmyon.kim@gmail.com, upchong@ulsan.ac.kr, sbcho@ulsan.ac.kr

Full Text: Read Online (HTML) | Download PDF FREE | View Cart
A modified loop filter design method for plucked string instruments is introduced. Previous loop filter designs do not properly represent the frequency-dependent damping of a silk stringed instrument. To solve this problem, the modified method evaluates how many harmonics are required and which portion of the sound should be chosen to effectively replicate the instrument. Then, the most reasonable filter parameters are determined based on the frequency signal-to-noise ratio of the synthesized sound.

© 2012 Acoustical Society of America

Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by Ministry of Education, Science and Technology (2011-0014539).

Article Outline

  1. Introduction
  2. Background
    1. Target instruments: traditional Korean instrument
    2. Previous work
  3. Proposed method
  4. Experiments and results
  5. Conclusion

RELATED DATABASES

Web of Science

View this record in Web of Science

View Web of Science related articles

KEYWORDS and PACS

Keywords

acoustic noise, acoustic signal processing, damping, harmonics, musical acoustics, musical instruments

PACS

  • 43.75.Gh

    Plucked string instruments

  • 43.75.Zz

    Analysis, synthesis, and processing of musical sounds

  • 43.75.Yy

    Instrumentation and measurement methods for musical acoustics

ARTICLE DATA

History
Received 01 Nov 2011
Accepted 17 Dec 2011
Published online 17 Jan 2012
Digital Object Identifier
http://dx.doi.org/10.1121/1.3675805

PUBLICATION DATA

ISSN

0001-4966 (print)  

Publisher

$abstract.society.value is a Member of CrossRef Acoustical Society of America

  1. J. Kelly and C. Lochbaum, “Speech synthesis,” in Proceedings of the 4th International Congress on Acoustics, Copenhagen, Denmark (1962), pp. 1–4.
  2. J. O. Smith, “Physical audio signal processing: Singing Kelly-Lochbaum vocal tract,” https://ccrma.stanford.edu/~jos/pasp/Singing_Kelly_Lochbaum_Vocal_Tract.html (Last viewed October 18, 2011).
  3. L. Hiller and P. Ruiz, “Synthesizing sounds by solving the wave equation for vibrating objects,” J. Audio Eng. Soc. 19, 462–470 (1971). [Inspec] [ISI]
  4. M. McIntyre and J. Woodhouse, “On the fundamentals of bowed string dynamics,” Acustica 43, 93–108 (1979). [Inspec] [ISI]
  5. M. McIntyre, R. Schumacher, and J. Woodhouse, “On the oscillations of musical instruments,” J. Acoust. Soc. Am. 74, 1325–1345 (1983).
  6. K. Karplus and A. Strong, “Digital synthesis of plucked string and drum timbres,” Comput. Music J. 7, 43–55 (1983).
  7. D. A. Jaffe and J. O. Smith, “Extensions of the Karplus-Strong plucked-string algorithm,” Comput. Music J. 7, 56–69 (1983).
  8. J. O. Smith, “Techniques for digital filter design and system identification with application to violin,” Ph.D. Thesis, Stanford University, Stanford, CA, 1983.
  9. J. O. Smith, “Physical modeling using digital waveguides,” Comput. Music J. 16, 74–91 (1992). [Inspec] [ISI]
  10. V. Välimäki, J. Huopaniemi, M. Karjalainen, and Z. Jánosy, “Physical modeling of plucked string instruments with application to real-time sound synthesis,” J. Audio Eng. Soc. 44, 331–353 (1996). [Inspec] [ISI]
  11. M. van Walstijn, “Parametric FIR design of propagation loss filters in digital waveguide string models,” IEEE Signal Process. Lett. 17, 795–798 (2010).
  12. N. Lindroos, H. Penttinen, and V. Valimaki, “Parametric electric guitar synthesis,” Comput. Music J. 35, 18–27 (2011).
  13. Y. Choi, “Kayagum,” http://learningobjects.wesleyan.edu/vim/cgi-bin/instrument.cgi?id=97 (Last viewed October 18, 2011).
  14. M. Schroeder, “New method of measuring reverberation time,” J. Acoust. Soc. Am. 42, 409–412 (1965).
  15. G. Weinreich, “Coupled piano strings,” J. Acoust. Soc. Am. 62, 1474–1484 (1977).

Figures (click on thumbnails to view enlargements)

FIG.1
(Color online) Envelope curves and straight lines corresponding to each βk for the acoustic guitar.

FIG.1 Download High Resolution Image (.zip file) | Export Figure to PowerPoint

FIG.2
(Color online) Envelope curves and straight lines corresponding to each βk for the Gayageum.

FIG.2 Download High Resolution Image (.zip file) | Export Figure to PowerPoint

FIG.3
(Color online) Envelope curves and straight lines corresponding to each βk for the Geomungo.

FIG.3 Download High Resolution Image (.zip file) | Export Figure to PowerPoint

FIG.4
(Color online) Comparison of estimated loop filter coefficients for the (a) previous method and (b) proposed method.

FIG.4 Download High Resolution Image (.zip file) | Export Figure to PowerPoint

FIG.5
(Color online) FSNR results for synthesized sounds of each instrument: (a) Guitar, (b) Gayageum, and (c) Geomungo.

FIG.5 Download High Resolution Image (.zip file) | Export Figure to PowerPoint



Close

Your Recent History Recent History Help

Recently Viewed

  1. Modification of the loop filter design for a plucked string instrument
  2. Comparing vowel perception and production in Spanish and Portuguese: European versus Latin American dialects
  3. Evidence of cue use and performance differences in deciphering dysarthric speech
  4. The magnetic resonance imaging subset of the mngu0 articulatory corpus
  5. On the use of an absorption layer for the angular spectrum approach (L)

Home Publications Meetings Contact ASA Site Map Back to Top

Copyright © Acoustical Society of America

close