翻訳と辞書 Words near each other ・ Basse-Pointe ・ Basse-Rentgen ・ Bass Rock Lighthouse ・ Bass sarrusophone ・ Bass saxophone ・ Bass Site ・ Bass song ・ Bass Station, Indiana ・ Bass Strait ・ Bass Strait ferries ・ Bass Strait Triangle ・ Bass Strike ・ Bass Sultan Hengzt ・ Bass to Mouth ・ Bass Trail ・ Bass trap ・ Bass trumpet ・ Bass v Gregory ・ Bass violin ・ Bass worms ・ Bass Worthington Ground ・ Bass, Alabama ・ Bass, Arkansas ・ Bass, Casey County, Kentucky ・ Bass, Victoria ・ Bass, West Virginia ・ Bass-bar ・ Bass-baritone ・ Bass-ment Cuts ・ Bassa 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 Bass trap ： ウィキペディア英語版 Bass trap Bass Traps are acoustic energy absorbers which are designed to damp low frequency sound energy with the goal of attaining a flatter low frequency(LF) room response by reducing LF resonances in rooms. They are commonly used in recording studios, mastering rooms, home theatres and other rooms built to provide a critical listening environment. Like all acoustically absorptive devices, they function by turning sound energy into heat through friction. ==General description—types== There are generally two types of bass traps: resonating absorbers and porous absorbers. By their nature resonating absorbers tend toward narrow band action (only a narrow range of sound frequencies ) and porous absorbers tend toward broadband action (sound all the way across the audible band - low, mid, and high frequencies ), though both types can be altered to be either more narrow, or more broad in their absorptive action. Both types are effective though the porous absorber has certain practical advantages in application as porous absorber type bass traps need not be specifically tuned to match the job at hand, and they tend to be smaller in size and easier to build than resonation type devices. For this reason most commercially manufactured bass traps are of the porous absorber type. Examples of resonating type bass traps include Helmholtz resonators, and devices based on diaphragmic elements or membranes which are free to vibrate in sympathy with the room's air when sound occurs. Resonating type bass traps achieve absorption of sound by sympathetic vibration of some free element of the device with the air volume of the room. Such free elements in a resonating device can come in many forms such as the air volume captured inside a Helmholtz resonator - or a thin wooden panel held only by its edges (called: "panel absorbers", a style of diaphragmic absorber ). Resonating absorbers can be made from just about any material that can either form a stiff walled vessel (glass bottle for example ) or any membrane stiff enough to be susceptible to being induced to vibrations by impinging sound. Porous absorbers are most commonly made from fiberglass, mineral wool or open cell foam, and function through the existence of interstices (holes ) in the medium which present small captured pockets of air to the room which when excited by sound pressure waves in the room's air volume are themselves induced to vibrate like small springs. 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「Bass trap」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.