Vibration and sound characteristics by shape in mouthpiece made of titanium alloy of trumpet

Satoshi Horihata, Mitsuo Niinomi, Takahiro Nozaki, Toshikazu Akahori, Touru Suzuki, Keiji Sone, Shunichi Niwata, Norihisa Fukuda

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Traditionally, the metal mouthpieces of trumpets have been generally made of brass. However, for musicians who suffer from metal allergies, the use of the mouthpiece sometimes lead to inflammation of the lip if they are taking part in a long performance. This problem can be solved by using allergy-free pure titanium (titanium) and its alloys as the material for the mouthpiece. Therefore, a titanium alloy composed of non-toxic and allergy free elements has been designed. However, because their heat conductivity is generally poor, and they contain α phase with its HCP (hexagonal closed packed structure having structure, which restrict slip systems, forming them into suitable shapes can be very difficult. Therefore, precision casting method, where only final finishing was conducted by machining, applied for fabricating the mouthpieces of trumpets. Important considerations for use in musical instruments are the material characteristics and the sound characteristics of mouthpieces made of titanium alloy. Research on the material characteristics of titanium alloy mouthpieces is currently being undertaken. On the other hand, the sound characteristics of mouthpieces made of titanium alloy have not been examined sufficiently. In this study, the sound and the vibration characteristics of two kinds of mouthpieces made of titanium and Ti-Nb was examined. The adaptability of these materials for use in mouthpieces of trumpets was discussed by comparing the sound characteristics of mouthpieces of trumpets made of titanium, Ti-Nb, and brass.

Original languageEnglish
Pages (from-to)2240-2249
Number of pages10
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Issue number803
Publication statusPublished - 2013


  • Signal Processing
  • Sound Quality
  • Sound and Acoustics
  • Spectrum Analysis
  • Titanium Alloy

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'Vibration and sound characteristics by shape in mouthpiece made of titanium alloy of trumpet'. Together they form a unique fingerprint.

Cite this