Differences between low cost and high cost loudspeaker drivers

No Thumbnail Available
Journal Title
Journal ISSN
Volume Title
Sähkötekniikan korkeakoulu | Master's thesis
Date
2019-03-11
Department
Major/Subject
Acoustics and Audio Technology
Mcode
ELEC3030
Degree programme
CCIS - Master’s Programme in Computer, Communication and Information Sciences (TS2013)
Language
en
Pages
48 + 10
Series
Abstract
The cost of a loudspeaker varies from few tens of euros to few thousand euros corresponding to its size, performance and the parts used. Over six decades, there is no significant change in loudspeaker working principle. The differences between low cost and high cost loudspeakers is measured in a controlled environment with a focus on the objective measurements alone. Paired comparison method is used to compare the results obtained. The results are further validated through laser doppler vibrometer measurements. The usefulness and the relationship between acoustical measurement and laser doppler vibrometer measurement in loudspeaker evaluation is established. Some low cost loudspeaker is competent enough to its peer high cost loudspeaker.
Description
Supervisor
Pulkki, Ville
Thesis advisor
Huhtakallio, Ilkka
Keywords
low cost loudspeakers, high cost loudspeakers, cost difference, magnet resonance, edge diffraction, frequency response
Other note
Citation