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Conference Paper

Self-Testing of Car Audio Systems

Authors: Irrgang, Stefan; Klippel, Wolfgang

AES Conference: 2019 AES INTERNATIONAL CONFERENCE ON AUTOMOTIVE AUDIO · Paper 2 · September 2019

Abstract

All hardware components required for a test system that checks the quality of the audio system in cars are ac-tually already available in modern cars: DSP, converters, sensors, transducers and connecting links. However, they are not designed as test system components but may be used as such. Smart amplifiers and loudspeaker control technologies are of special interest for this approach. They provide powerful means to improve transducer properties like robustness, linearity, and bandwidth. By definition, they identify loudspeaker parameters and states. Such valuable information can be exploited for test and measure-ment tasks such as design qualification, end-of-line testing, quality assurance, long-term monitoring and ensur-ing safety relevant features (e.g. pedestrian warning systems). This paper investigates benefits and challenges of this approach.

Details

Published in
AES Conference: 2019 AES INTERNATIONAL CONFERENCE ON AUTOMOTIVE AUDIO
Paper number
2
Publication date
September 6, 2019
Affiliation
Klippel GmbH, Dresden, Germany; Klippel GmbH, Dresden, Germany (See document for exact affiliation information.)
Type
Conference Paper