...This is a type of sensory level defined as a measure of the perceived intensity of received sound that takes into account the characteristics of the human ear. In general communication systems with transmission characteristics that are good enough, the louder the received volume, the better the call quality can be judged to be. From [Transmission Standards]…The basis of communication transmission in public communication networks is to maintain a certain communication quality for communication between any terminals, regardless of the transmission distance or the installation conditions of the communication terminals. This communication quality means, for example, the degree to which a telephone call can be heard clearly, and in the case of data communication, the number of transmission errors. In public communication networks, standards for the communication quality to be ensured are set in advance, and the communication network is designed so that these standards are maintained for information transmission from any subscriber. … *Some of the terminology used in "opinion evaluation" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これは人間の耳の特性をも考慮した受聴音の感覚的な強さの尺度として定められた感覚レベルの一種であり,伝送特性がある程度以上良好な一般の通信系では,受話音量が大きいほど通話品質としては優れていると判断できる。 【伝送基準】より…公衆通信網における通信伝送の基本は,伝送距離や通信端末の設置条件にかかわらず,いかなる端末間の通信に対してもある定められた通信品質を維持することである。この通信品質とは,例えば電話でいえばよく聞こえる度合,データ通信の場合には伝送誤りの少なさをいう。公衆通信網などではあらかじめ確保すべき通信品質に関する基準を定め,いかなる加入者からの情報伝達に対してもこの基準が維持されるように通信網が設計されている。… ※「オピニオン評価」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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