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GMW14055 4th Edition, August 1, 2016 Customer Actuated Sound Vehicle Level Evaluation Procedure
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Description / Abstract: Introduction
Note: Nothing in this standard supercedes applicable laws and regulations.
Note: In the event of conflict between the English and domestic language, the English language shall take precedence.
Purpose. To provide a common procedure for recording the sounds of subsystems (that can be directly actuated by the customer, i.e., Customer Actuated Sounds (CAS)) for analysis for sound quality evaluation using measuring microphones.
Applicability. Any subsystem or component that is installed on vehicles and can be directly actuated by the customer.
Remarks. The sounds of subsystems must be recorded to apply the objective methods for Sound Quality Metric evaluation. Many subsystems have multiple modes of operation. Each mode of operation must be recorded independently for evaluation and comparison. This procedure is intended to describe the operating conditions of the subsystems, the recording methods to be used and the various analysis methods that may be applied to the recordings for the objective Sound Quality Metric evaluations. Not all the analysis methods described in this procedure need to be applied to the sounds of every subsystem. The requirements for the individual subsystems will identify which methods are to be used.
Note: Nothing in this standard supercedes applicable laws and regulations.
Note: In the event of conflict between the English and domestic language, the English language shall take precedence.
Purpose. To provide a common procedure for recording the sounds of subsystems (that can be directly actuated by the customer, i.e., Customer Actuated Sounds (CAS)) for analysis for sound quality evaluation using measuring microphones.
Applicability. Any subsystem or component that is installed on vehicles and can be directly actuated by the customer.
Remarks. The sounds of subsystems must be recorded to apply the objective methods for Sound Quality Metric evaluation. Many subsystems have multiple modes of operation. Each mode of operation must be recorded independently for evaluation and comparison. This procedure is intended to describe the operating conditions of the subsystems, the recording methods to be used and the various analysis methods that may be applied to the recordings for the objective Sound Quality Metric evaluations. Not all the analysis methods described in this procedure need to be applied to the sounds of every subsystem. The requirements for the individual subsystems will identify which methods are to be used.