000218747 001__ 218747
000218747 005__ 20190317000451.0
000218747 037__ $$aCONF
000218747 245__ $$aExperimental assessment of low-frequency electroacoustic absorbers for room modal equalization in actual listening rooms
000218747 269__ $$a2016
000218747 260__ $$c2016
000218747 336__ $$aConference Papers
000218747 520__ $$aIn listening rooms, low-frequency modal resonances lead to uneven distributions in space and frequency of the acoustic energy, as well as an alteration of the temporal behavior of the original music content. While usual absorption techniques have severe limitations for reducing the negative impact of room modes, the authors have previously proposed the use of electroacoustic absorbers for room modal equalization. This device consists of a current-driven, closed-box loudspeaker associated to a hybrid sensor-/shunt-based impedance control. In this communication we assess the performance of these electroacoustic absorbers in actual listening rooms, by measuring frequency responses at different locations, as well as their modal decay times. The electroacoustic absorbers perform as expected and the room modal equalization is clearly improved in the low-frequency range.
000218747 6531_ $$aActive absorption
000218747 6531_ $$aOptimal impedance
000218747 700__ $$0246640$$g195222$$aRivet, Etienne
000218747 700__ $$aKarkar, Sami
000218747 700__ $$0242771$$g157878$$aLissek, Hervé
000218747 700__ $$aThorsen, Torje Nikolai
000218747 700__ $$aAdam, Véronique
000218747 7112_ $$dJune 4-7, 2016$$cParis, France$$aAudio Engineering Society Convention 140
000218747 8564_ $$uhttp://www.aes.org/e-lib/browse.cfm?elib=18204$$zURL
000218747 909C0 $$xU10380$$0252392$$pLTS2
000218747 909CO $$qGLOBAL_SET$$pconf$$ooai:infoscience.tind.io:218747$$pSTI
000218747 917Z8 $$x195222
000218747 937__ $$aEPFL-CONF-218747
000218747 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000218747 980__ $$aCONF