筆記型電腦噪音標準制定與認證系統之研究

A Study of Notebook Computer's Noise Standard and Its Accreditation System

鄭和彬(Ho-Ping Cheng)

指導教授 ： 蔡瑤昇

國立臺北科技大學/管理學院/工業工程與管理系EMBA班/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00020

摘要

近年來筆記型電腦有取代桌上型電腦的趨勢，在人類提高生活品質的情況下，筆記型電腦的整體品質要求也相對提高，噪音便是其中一環，為有效規範筆記型電腦噪音，我們需要研究噪音標準制定方法及設計一套認證系統。
我們將參考ISO 7779, ISO 532的響度(Loudness)，與ECMA 74的突出率(Prominence Ratio)兩項心理聲學(Psychoacoustics)參數，並以人因工程測試及統計方法進行資料分析，然後制定噪音標準，作為認證系統的規範。
綜觀市面上筆記型電腦的認證規範，具有噪音標準的認證制度尚未完整。我們深入研究噪音後，發現以往的聲音認證規範不能完全令人滿意，例如德國Blue Angel標準僅驗證聲功率(Sound Power)的值，但惱人的噪音不一定大聲，或者不一定能量較大。有了噪音標準後，還需要一套認證系統，我們設計問卷調查並完成問卷回收，調查消費者現在使用筆記型電腦的噪音問題之感受程度，以及消費者對於認證標準的意願及認同感，進而設計一套符合消費者需求的筆記型電腦認證系統。
本論文期望在噪音標準制定及第三公正單位推行此認證系統後，能讓筆記型電腦研發人員、品保人員、生產者及銷售人員有噪音標準的依據，最終使消費者可以獲得產品更安靜、更舒適的使用環境。

關鍵字

標準 ； 認證系統 ； 聲壓位準 ； 突出率 ； 響度 ； 心理聲學 ； 人因工程

並列摘要

As the result of the truth that notebooks gradually replace desktops, and people pursuing better life quality, quality of notebooks is much vital. Noise is one supposed to be focused. To efficiently regulate notebook noise, a convincible and public conformity assessment as well as standards with criteria should be introduced. However, the existed standards are unable to perfectly point out all kind of noise, because while inspecting and researching noise, we find parameters used in criteria only can describe specific phenomena. For example, the standard stipulated by RAL German Institute, RAL-UZ 78 (Blue Angel, for system units and portable computers), is to measure noise by sound power test, but low energy emission still may cause annoying noise. Accordingly, for advanced noise evaluation, psychoacoustics is necessary. First, this study will make market survey by questionnaire to realize how consumers feel about their notebook noise emission, and consumers’ identification and requirement of conformity assessment. Second, referring to ISO7779, loudness in ISO532, and prominence ratio in ECMA74, criteria for notebook noise evaluation will be made based on jury test and statistics, which can be written in a new standard. Furthermore, a conformity assessment for notebook noise is designed and discussed, to make this new standard viable. Our research expects through this mechanism can create a more silent environment for notebook users.

並列關鍵字

Standard ； Accreditation System ； Sound Pressure Level ； Prominence Ratio ； Loudness ； Psychoacoustics ； Ergonomics

參考文獻

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