学位論文

AV機器の音質向上を目的としたメカ設計に関する研究　－スピーカ周辺構造のモデル化の効果－

STUDY ON MECHANICAL DESIGN AIMING AT IMPROVEMENT OF SOUND QUALITY　–INFLUENCE OF MODELING OF STRUCTURE AROUND LOUDSPEAKER–

jpn

2013-03-24

Not Applicable (or Unknown)

2013-03-24

修士(工学)

工学研究科機械工学専攻; 指導教授: 御法川学

In the field of mechanical design for information technology and audio equipements, it is important to prevent from worsening the quality of sound from loudspeaker due to the acoustic and vibration characteristics of the mechanical design. In the study, the effect of the structure around the loudspeaker such as the front perforated plate and the volume between the loudspeaker and the plate on the frequency characteristics were examined experimentally and analytically. As the result, the transmission loss by the perforated plate and the acoustic resonance due to the front volume influenced the frequency characteristics of the sound. Further, the subjective test was performed to examine the improvement of the sound quality by the modification of the design parameters.

Thesis