“…This effect, along with the acoustic smearing noticed in Figure 8, generates a less preferable response for the customer. The distinct, primary and secondary acoustic responses would generate a greater perception of safety and security knowing that the door was closed properly (Takada et al, 2019). Figure 10.Continuous wavelet transform of the 1.179 m/s closure speed.…”
Section: Resultsmentioning
confidence: 99%
“…This 10.96 dBA difference would generate a significantly louder response for the 1.179 m/s door closure event. Although not the only important psychoacoustic characteristic, a quieter response has been shown to generate a more pleasant psychoacoustic characteristic, increasing the perceived luxury of the automobile (Takada et al, 2019).…”
Section: Discussionmentioning
confidence: 99%
“…A recent psychoacoustic analysis investigating the value evaluation of the door closure event was performed by Takada et al (2019). The authors noted that the door closure events containing abundant low-frequency content were associated with feelings of security, luxuriousness, and pleasantness.…”
The acoustic response of a car door latch has been shown to directly impact the customers’ perceived quality and value evaluation of the automobile. This work introduces an experimentally validated computational model of three door latch components. The transient sound pressure level response of the three door latch components during door closure was collected in a semianechoic chamber using a three-element condenser microphone array. Postprocessing methodologies such as sound pressure level versus 1/3 octave band and continuous wavelet transform analysis were performed. This provided an in-depth analysis on the overall acoustic response and identification of dominant frequencies corresponding to four specific impact events during latch operation. Computational finite element analysis of the closure system using a rigid body, and explicit dynamic and transient structural acoustic analyses provided additional insights into the latch component interactions and the acoustic response generated empirically. Recorded average sound pressure level, frequency decomposition, and impact reaction forces are presented in addition to a comparison between the acoustic response for two different door closure speeds. It was found that an increased door closure speed increased the response sound pressure level, decreased damping of the primary impact, and decreased the frequency bandwidth of the response, thereby generating an acoustic response that would be perceived as noisier, less safe, and less secure by customers. These findings provide additional insights into the primary impact acoustic response of an automotive door latch during closure. The methodology introduced in this work allows automotive engineers to perform future work with modified latch components to further improve the psychoacoustic response of the automotive car door latch, further increasing the value evaluation of the automobile.
“…This effect, along with the acoustic smearing noticed in Figure 8, generates a less preferable response for the customer. The distinct, primary and secondary acoustic responses would generate a greater perception of safety and security knowing that the door was closed properly (Takada et al, 2019). Figure 10.Continuous wavelet transform of the 1.179 m/s closure speed.…”
Section: Resultsmentioning
confidence: 99%
“…This 10.96 dBA difference would generate a significantly louder response for the 1.179 m/s door closure event. Although not the only important psychoacoustic characteristic, a quieter response has been shown to generate a more pleasant psychoacoustic characteristic, increasing the perceived luxury of the automobile (Takada et al, 2019).…”
Section: Discussionmentioning
confidence: 99%
“…A recent psychoacoustic analysis investigating the value evaluation of the door closure event was performed by Takada et al (2019). The authors noted that the door closure events containing abundant low-frequency content were associated with feelings of security, luxuriousness, and pleasantness.…”
The acoustic response of a car door latch has been shown to directly impact the customers’ perceived quality and value evaluation of the automobile. This work introduces an experimentally validated computational model of three door latch components. The transient sound pressure level response of the three door latch components during door closure was collected in a semianechoic chamber using a three-element condenser microphone array. Postprocessing methodologies such as sound pressure level versus 1/3 octave band and continuous wavelet transform analysis were performed. This provided an in-depth analysis on the overall acoustic response and identification of dominant frequencies corresponding to four specific impact events during latch operation. Computational finite element analysis of the closure system using a rigid body, and explicit dynamic and transient structural acoustic analyses provided additional insights into the latch component interactions and the acoustic response generated empirically. Recorded average sound pressure level, frequency decomposition, and impact reaction forces are presented in addition to a comparison between the acoustic response for two different door closure speeds. It was found that an increased door closure speed increased the response sound pressure level, decreased damping of the primary impact, and decreased the frequency bandwidth of the response, thereby generating an acoustic response that would be perceived as noisier, less safe, and less secure by customers. These findings provide additional insights into the primary impact acoustic response of an automotive door latch during closure. The methodology introduced in this work allows automotive engineers to perform future work with modified latch components to further improve the psychoacoustic response of the automotive car door latch, further increasing the value evaluation of the automobile.
“…The remaining 25% is defined as the responsibility of door weight, latch and hinge friction. Jayaram and Mohanraj 10 studied the influence of tolerance methods and aspects of Thavamani et al 19 3 3 3 Cheng et al 20 ; Hamilton 21 ; Garro et al 22 ; Petniunas et al 23 ; Takada et al 24 ; To ¨rnqvist and Wallin, 25 Yunkai and Zhe 26…”
Section: Background Of the Studymentioning
confidence: 99%
“…Latch with an absorber demonstrated the maximum contribution to DCS. Takada et al 24 studied DCS with Grid Method Evaluation. The emotional and functional factors (i.e.…”
The prediction model for the energy contributors is studied to define the effect of door components. The model is validated by experimental measurements on produced vehicles. The correlation of the control results and the evaluation methods among the representative customers, appraisers and senior experts are performed and compared by objective energy measurements. The subjective evaluation aims to clarify real customer expectations in door closing process and carry it to new product development phase. This will also improve the competency of appraisers in final assembly approval zones. The energy contributors for boot swing door is numerically calculated and validated by experimental measurements in easy and hard-closing doors. Subjective evaluations in 45 vehicles with different closing energies were performed by three different groups as representative customers, appraisers, and senior experts. The results were evaluated by statistical tools. The major energy contributors were found as air binding, seal resistance and check strap both in the calculations and in the experiments. The results demonstrated good correlation between numerical model and objective measurements. Besides, the subjective evaluations showed parallel trends with objective energy measurements. The variation in customer evaluations is more than appraisers and experts. Customers are severer in the evaluations of hard-closing doors and more sensitive in 10° door closing angle. This is a unique study for rear boot swing door closing effort in an LCV model. The study contains both definitions of factors, components that contributes in door closing energy and subjective evaluations to correlate the closing behaviors of representative customers, appraisers, and senior experts. The output of the study would be used to improve the vehicle control plan (VCP) and design standards in new model development phase.
The field of sonic branding/marketing has grown rapidly in recent years, as has commercial interest in more science‐based approaches to the practice, particularly as more brands and agencies look for qualitative and quantitative evidence to support the efficacy of sonic branding. In this research note, we explore the ways in which the design and execution (i.e., the “art”) of sonic branding initiatives can be informed by overlapping approaches and techniques drawn from the sciences, namely psychoacoustics, semiotics, music/auditory cognition, and crossmodal research. We explore whether the rapid growth of generative AI may represent the next major evolution in the design, creation, and assessment of sonic assets, where science and art are used to train AI tools that could one day augment (and potentially disrupt) the work of human sound designers and composers. These developments notwithstanding, it is argued that sonic branding will likely remain as much an art as a science, though basing one's approach on the emerging scientific literature ought to at least tilt the odds of success in the creative's favor.
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