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An experimental investigation on the bridge effect in sound produced by Setar

Mansour, H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2009-13048
  3. Publisher: American Society of Mechanical Engineers (ASME)
  4. Abstract:
  5. This study aims to evaluate the amount of energy transfers through the bridge in Setar, a Persian long-necked lute, Stringed musical instruments are among the most complicated acoustical systems. When the string is plucked, its vibration distributes into the entire vibrating system (i.e. body, string, air enclosure) and produces sound. The resultant sound consists of three parts: the first is the string's direct sound; the second is that part of sound-box vibration being excited by string's direct sound, and the third is the part of sound-box vibration being excited by string force passing through bridge. The last part believed to have the major share and the others have minor effect. For this research., a specific fixture has been made and a precise plucking machine is installed to hold and pluck the instrument uniformly, Also, a novel approach is utilized to evaluate the share of each abovementioned part in the output near-field sound produced by Setar
  6. Keywords:
  7. Bridge ; Transfer path analysis ; Vibration ; Energy transfer ; Mechanical engineering ; Musical instruments ; Regression analysis ; Acoustical systems ; Bridge effects ; Experimental investigations ; Near-field sound ; Persians ; Setar ; Vibrating systems ; Vibration analysis
  8. Source: 2009 ASME International Mechanical Engineering Congress and Exposition, 13 November 2009 through 19 November 2009 ; Volume 15 , 2010 , Pages 491-495 ; 9780791843888 (ISBN)
  9. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1644227