Abstract
How well can a human mimic the sound of a trumpet?
The Journal of the Acoustical Society of America, Vol.139(4 Supplement), pp.2178-2178
04/2016
DOI: 10.1121/1.4950474
Abstract
The length of an uncoiled trumpet horn is more than 2 m, whereas the length of a human supraglottal airway is about 17 cm. The vibrating lips and the vibrating vocal folds can produce similar pitch ranges, but the resonators have vastly different natural frequencies due to the more than 10:1 ratio in airway length. Humans rarely attempt to tune more than one resonance to a harmonic because of the disparity between harmonic spacing and airway resonances spacing, but the brass-like timbre of a human “call” or “belt” can mimic that of a trumpet. A one-dimensional Navier-Stokes solution of non-steady compressible flow in soft-walled airways is used to show the similarities and differences in time-domain wave propagation and resulting flow and pressure frequency spectra along the airways. One striking structural similarity between the human instrument and the brass instrument is the shape of the airway directly above the sound source, known as the mouthpiece for brass and the epilarynx tube for the human airway. It plays a major role in shaping the source spectrum.
Details
- Title: Subtitle
- How well can a human mimic the sound of a trumpet?
- Creators
- Ingo R. Titze - University of Utah
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.139(4 Supplement), pp.2178-2178
- DOI
- 10.1121/1.4950474
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Number of pages
- 1
- Date published
- 04/2016
- Academic Unit
- Communication Sciences and Disorders; School of Music
- Record Identifier
- 9984719860202771
Metrics
1 Record Views