akustika 101

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SeiZleba pirvelad gesmiT akustikuri mecnierebis Sesaxeb, SeiZleba TqvenTvis akustika gitarasTan asocirdeba, an SeiZleba Tqven oTaxis xmis "izolacia" gicdiaT kvercxis firfitebiT. ar aqvs mniSvneloba, nebismier SemTxvevaSi Cveni statia TqvenTvis saintereso iqneba. qvemoT Tqven waikiTxavT bgeris muSaobis ZiriTad principebs, saintereso Tvisebebs da teqnikur parametrebsac ki.

ratom unda gvainteresebdes akustika

    xmauri uZvelesi problemaa, am problemis Sesaxeb jer kidev romSi werdnen. "RaribTaTvis ar moiZebnebaa mosasvenebeli an safiqrali adgili romSi"-wuxda Tavis epistoleSi soflis saxls monatrebuli marciale. igive problemaze saubrobda seneka romelic xazs usvams rom "swavlisas siCume iseTive Zvirfasia rogorc TvalisCini". 

    ZnelaT Tu warmoidgendnen Zvel romSi, karetebis da garemovaWreebis xmauriT Sewuxebuli romaelebi Tu ramdenad gaizrdeboda xmauris done 2000 wlis Semdeg.

    xmauris udidesi gavlena aqvs Cvens cxovrebaze. xmaurian garemoSi didxans yofna pirdapir da uaryofiT zegavlenas axdens adamianis fsiqikaze, guneba-ganwyobilebaze, koncentraciis unarze, energiis doneze da zogad janmrTelobaze. Tumca imisdagamo rom bgera uxilavia xSirad gviWir imis aRqma Tu zustad ra gvawuxebs. sainteresoa is faqti rom yuri aRqmis yvelaze mgrZnobiare organoa, masSi samjer meti nervuli sensoria vidre TvalSi. 

   

   Tanamedrove adamiani drois did nawils Senobis SigniT, akustikurad gaumarTav sivrceebSi atarebs. arasasurveli xmauri aramxolod safrTxes uqmnis Cven fizikur da fsiqikur janmrTelobas, aseve zogadad Zalian uaryofiT gavlenas axdens Cveni cxovrebis xarisxze. ofisSi sadac saubris garCevadoba Wirs da Warbi xmauria, rTulia muSaoba, aseve sacxovrebel saxlSi sadac quCidan da mezoblebisgan Semosuli xmauri mosvenebis saSualebas ar gvaZlevs da gviuaresebs Zilis xarisxs, skolebSi sadac bavSisTvis da maswavleblisTvis erTnairad rTulia saswavlo procesis warmarTva xmaurian garemoSi, saavadmyofoebSi sadac axalnaoperacieb pacients elementaruli mosvenebis saSualeba ar eZleva.

   

rogor muSaobs bgera

   SeyviteT kiTxva da yuri daugdeT Tqvens garSemo arsebul xmebs. ra gesmiT? kompiueris fenis xma, gamaTboblis xmauri, macivris motoris xma, quCidan Semosuli manqanebis xma, oTxSi mousaubre adamianebis xma? Cvens garSemo aTasgvari bgera iyris Tavs romlebic sxvadasxvanairad iqcevian. mecnierebas romelic bgeris qcevasa da Tvisebebs Seiswavlis akustika ewodeba.

   imis gamo rom bgera uxilavia, is CvenTvis xSirad rTuli aRsaqmelia, Tumca Sedarebebis gamoyenebiT martivad SevZlebT gaviazroT Tu rogor funqcionirebs bgera. bgeris warmoSobas iwvevs nebismieri mizeziT gamowveuli haeris rxeva. warmoqmnis adgilidan bgera talRiseburad vrceldeba haeris meSveobiT. analogiisTvis warmoidgineT ra xdeba rodesac kenWs vagdebT tbaSi, igive principiT xdeba 

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bgeris gavrceleba. sagulisxmoa rom bgeras aucileblad esaWiroeba raRac mediumi riTac gadaadgildeba, haeri, wyali, rkina da ase Semdeg, vakuumSi( mag:kosmosSi) bgera ver gadaadgildeba. rac ufro myaria mediumi miT ufro swrafad da Sor distanciaze gaadgildeba bgera, magaliTad relsze yuris dadebiT SegiZliaT Zalian Soridan momavali matarebeli daafiqsiroT. aseve sainteresoa rom bgera daaxloebiT milionjer ufro nela vrceldeba, ris gamoc jer vxedavT gaelvebas da mxolod Semdeg gvesmis xma. 

   sainteresoa rogor iqceva bgera zedapirTan Sejaxebisas. ZiriTadad ganixileba sami SemTxveva, rodesac bgera airekleba, STainTqmeba an gaatans zedapirSi. warmosadgenad isev wyali gamoviyenoT. myari sagnebi kargi amreklavebi arian, magaliTad warmovidginoT SuSis oTaxSi. Tu SuSas wyals SeasxamT, is 100% entiT aireklavs wyals da wyali ukan dagibrundebaT. igivenairad xdeba bgeris SemTxvevaSic areklili bgera ukan brundeba da 

agrZelebs moZraobas oTaxSi rac iwvevs eqos da reverberacias. axla warmovidginoT rom varT oTaxSi romlis kedlebic damzadebulia Rrublisgan (e.w gubka), Tu gubkas wyals SevasxamT nawili wyali ukan dagvibrundeba, nawils Rrubeli Seisrutavs, nawili ki Rrublis meore mxares gava. igivenairad iqceva bgerac kedelTan Sejaxebisas, nawili airekleba da ukan brundeba oTaxSi rac reverberacias qmnia, nawils kedeli STanTqavs da siTbod gardaqmnis, nawili ki kedelSi atans da SeiZleba gverdze oTaxSi gavides. rodesac sivrcis akustikur gamarTvaze vsaubrobT, unda gaviTvaliswinoT rom Sida akustikis mowyoba da xmis izolacia damoukidebeli samuSaoebia.

ZiriTadi akustikuri maCveneblebi

rogorc zemoT iqna naxsenebi, bevri sxvadasxvanairi xmauris fenomeni arsebobs (detalurad akustikur problemebze waikiTxeT aq). akustikaSi viyenebT ramdenime saerTaSoriso standarul koeficients raTa aRvweroT akustikuri garemo.

    NRC (noise reduction coefficient) xmauris abzorbaciis koeficientia NRC=0 niSnavs rom materia xmas saerTod ar STanTqavs NRC=1 niSnavs rom materia xmis 100% ents STanTqavs. akustikur panelebs gaaCnia sxvadasxva xmis STanTqmis koeficienti romelis mixedviTac iyofa klasebad. A,B,C. akustikuri injinrebi irCeven Sesabamis panels raTa rac SeiZleba minimaluri danaxarjiT miiRon sasurveli Sedegi.

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STI (SPEECH Transmission INDEX) - saubris garCevadobis indeqsi 1970 wels SeimuSaves da mas mere Zalian aqtiurad iyeneben msoflios garSemo.

es indeqsi 0-dan 1-mde funqcionirebs. 0 niSnavs rom absoliturad SeuZlebelia saubris garCevadoba da 1 niSnavs rom saubari idealurad garCevadia. 

   mravali kvleva adasturebs rom didi informacia ikargeba saklaso oTaxebSi, leqciebze, Sexvedrebisas da a.S imis gamo rom saubari ar aris mkafiod garCevadi. Sesabamisad STI Zalian mniSvnelovan rols TamaSobs imis gansazRvraSi Tu ramdenad martivad garCevadia saubari ama Tu im sivrceSi, rac Semdgom saSualebas aZlevs akustikosebs rom moagvaron problema.

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STC (Sound transmission class) - xmis gamtarobis reitingi romelic gansazRvravs Tu ramden decibels atarebs esa Tu is materia erTi mxridan meoreze. xmis simZlavre decibelebSi izomeba. gaiTvaliswineT rom STC logariTmuli reitingia da erTi-erTSi ar asaxavs materiis maCvenebels. magaliTad Tu gvaqvs kedeli romelsac gaaCnia STC 45 reitingi, es ar niSnavs rom kedeli blokavs 45 decibels. igivenairad SeuZlebelia reitingebis pirdapir Sekreba. magaliTad Tu gvaqvs kedeli 33 reitingiT da mivadgamT kedels 20 reitingiT, ver miviRebT kedels 53 reitingiT, aramed miRebuli Sedegi iqneba daaxloebiT STC 35.

STC 60+ aris standartuli kargi izolaciis maCvenebeli, Tumca gasaTvaliswinebelia rom STC reitingi moicavs 125-4000hz sixSireebs. xSirad ki problemas warmoadgens ufro dabali sixSireebi rasac magaliTad manqanis Zrava gamoimuSavebs, Sesabamisac STC -s ver gamoviyenebT damoukideblad rodesac kompleqsur akustikur problemasTan gvaqvs saqme. 

RT 60 (reverberation time 60db)- koeficienti gamoxatavs Tu ra dro sWirdeba xmas imisaTvis rom Semcirdes 60 decibeliT, xmis warmomqneli wyaros dadumebis Semdeg. RT 60<0.3 niSnavs rom sivrce aris akustikurad "mkvdari", RT 60>2 ki niSnavs rom sivrces aqvs Warbi eqouroba. maRali eqo da reverberacia xels uSlis saubris garCevadobas Sesabamisac ofisebSi, sacxovrebel saxlebSi, saklaso oTaxebSi da a.S sasurvellia dabali reverberaciis dro. sakoncerto darbazebSi, eklesiebSi, da a.S ki SedarebiT maRali reverberaciaa misaRebi. 

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