翻訳と辞書 Words near each other ・ no ・ no-op ・ no-write allocation ・ noc ・ nodal ・ nodal switching system ・ noddy ・ node ・ noise ・ noise margin ・ noise shaping ・ nol ・ nomad ・ nomex underwear ・ nominal semidestructor ・ non parity ・ non return to zero inverted ・ non-algorithmic procedure ・ non-impact printer ・ non-interlaced Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク noise shaping ： FOLDOC noise shaping {Spectral noise} transformation in a quantisation processes. Noise is "colourised" in the {time domain} an/or {frequency domain} by adding parts of the previous sample. The {SNR bandwidth} and {SNR time integral} stay the same, so some noise decreases, some increases, but overall noise always increases. An example of noise shaping in the frequency domain is quantisation of samples on a Compact Disc to reduce noise below -98 dB. The are different algorithms with slightly different filters, e.g. {Super Bitmapping}, {4D Recording}. A time domain example is {MPEG-4 AAC TNS}, which is a method to enhance quality by temporal forming of the noise in a transform block. (2003-07-19) 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.