Implementation of a test-bench solution for loudspeaker quality characterization Ford Motor Company Brasil Ltda

Format:

Conference/Event

Author/Creator:

Ferraz, Ferraz, author.

Contributor:

Castro, Marco

Faria, Leonardo

Oliveira, Aleandro

Sczibor, Valdinei

Conference Name:

SAE Brasil 2010 Congress and Exhibit (2010-10-05 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

Vehicle audio system performance is an important attribute for final customers. Usually the system performance is evaluated by subjective judgments and also some sort of objective measurements, as for example: reverberation time measurement of the internal cabin, frequency response and harmonic distortion. But all of these measurements are performed by the automaker at vehicle level - with audio system and speakers installed inside the vehicle cabin - for general quality inspections and definition of some spatial parameters of internal trim design. Loudspeaker performance evaluation usually requires great amount of investments due to the acoustic chamber requirements. This work presents the home implementation of a test-bench solution used for loudspeaker quality evaluation that uses time selective techniques enabling measurement of free field response of loudspeakers to be performed without the need of an anechoic chamber, allowing the conduction of the measurement in a low cost test-bench, inside an ordinary quiet room, without spent large facility investments

Notes:

Vendor supplied data

Publisher Number:

2010-36-0104

Access Restriction:

Restricted for use by site license