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In filmmaking, ambience (also known as atmosphere, atmos, or background) consists of the sounds of a given location or space.〔''Sound for Digital Video'' by Tomlinson Holman (Focal Press) 2005 (p. 169)〕 It is the opposite of "silence." This term is often confused with presence. Every location has distinct and subtle sounds created by its environment. These sound sources can include wildlife, wind, music, rain, running water, thunder, rustling leaves, distant traffic, aircraft and machinery noise, the sound of distant human movement and speech, creaks from thermal contraction, air conditioning and plumbing noises, fan and motor noises, and harmonics of mains power. Reverberation will further distort these already faint sounds, often beyond recognition, by introducing complex patterns of peaks and nulls in their frequency spectrum, and blurring their temporal characteristics. Finally, sound absorption can cause high frequencies to be rolled off, dulling the sound further. Ambience is normally recorded in ''stereo'' by the sound department during the production stage of filmmaking. It is used to provide a movie location with sonic space and normally occupies a separate track in the sound edit.〔''Sound for Digital Video'' by Tomlinson Holman (Focal Press) 2005 (p. 164)〕〔''Dialogue Editing for Motion Pictures'' by John Purcell (Focal Press) 2007 (p. 148)〕 ==See also== * Presence (sound recording) * Environmental noise * Filmmaking * Ambient noise level * Acoustic signature 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「Ambience (sound recording)」の詳細全文を読む スポンサード リンク
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