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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Equivalent pulse code modulation noise ： ウィキペディア英語版 Equivalent pulse code modulation noise In telecommunication, equivalent pulse code modulation noise (PCM) is the amount of thermal noise power on a frequency-division multiplexing (FDM) or wire channel necessary to approximate the same judgment of speech quality created by quantizing noise in a PCM channel. :''Note 1: The speech quality judgment is based on comparative tests.'' :''Note 2: Generally, 33.5 dBrnC ±2.5 dB is considered the approximate equivalent PCM noise of a 7-bit PCM system.'' ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Equivalent pulse code modulation noise」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.