For the development of high end headphones numerical simulation of headphone acoustics is an efficient tool. While discrete element models give good results for frequencies up to a few kilohertz finite element models are valid for higher frequencies too. A headphone model using finite elements and boundary elements was built in three phases both numerically and as a real world sample. The validity of the model was verified by comparison of both the radiated sound field and the membrane modal behaviour using a scanning laser vibrometer. Excellent agreement between measured and computed amplitude frequency responses was achieved.
Authors:
Biba, Dominik; Opitz, Martin
Affiliation:
AKG Acoustics
AES Convention:
122 (May 2007)
Paper Number:
7103
Publication Date:
May 1, 2007
Subject:
Microphones and Loudspeakers
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