Cov Ntsiab Cai Tseem Ceeb ntawm Acoustics hauv Kev Tsim Ua Yeeb Yam
Kev tsim qauv ua yeeb yam tsis yog hais txog kev zoo nkauj ntawm theem, lub peev xwm ntawm cov neeg tuaj saib, lossis qhov zoo nkauj ntawm sab hauv. Ib qho ntawm cov yam tseem ceeb tshaj plaws hauv kev txiav txim siab qhov ua tiav ntawm kev ua yeeb yam yog qhov zoo ntawm lub suab uas cov neeg tuaj saib tau txais - txawm tias nws yog cov neeg ua yeeb yam cov lus sib tham, suab paj nruag, lossis cov teebmeem suab. Qhov no yog qhov uas acoustics los ua si. Hauv cov ntsiab lus ntawm kev ua yeeb yam, acoustics yog kev siv zog los tsim ib qho chaw kom lub suab tuaj yeem hnov kom meej, sib npaug, thiab tsim nyog rau tus cwj pwm ntawm kev ua yeeb yam. Tsab xov xwm no tham txog cov hauv paus ntsiab lus ntawm acoustics uas tsim lub hauv paus ntawm kev tsim qauv ua yeeb yam.
1. Lub Hom Phiaj ntawm Kev Ua Yeeb Yam Acoustics: Kev Pom Tseeb, Kev Sib Npaug, thiab Kev Xis Nyob
Hauv kev ua yeeb yam, cov hom phiaj acoustic feem ntau txawv ntawm cov hauv cov chaw ua yeeb yam. Cov chaw ua yeeb yam muab qhov tseem ceeb dua rau kev nkag siab cov lus hais, vim tias kev sib tham yog ib qho tseem ceeb hauv kev ua yeeb yam. Txawm li cas los xij, ntau lub chaw ua yeeb yam kuj siv rau kev ua yeeb yam suab paj nruag, yog li kev tsim qauv acoustic yuav tsum muaj kev ywj pheej heev.
Peb lub hom phiaj tseem ceeb ntawm kev ua yeeb yam acoustics yog:
1. Kev meej: Cov neeg mloog nkag siab txhua lo lus yam tsis tas siv zog ntau dhau.
2. Kev faib tawm sib npaug: Lub suab hnov txhua lub rooj zaum, tsis yog hauv nruab nrab xwb.
3. Kev Xis Nyob: Tsis muaj suab ncha, suab hum, lossis suab tom qab uas ua rau neeg ntxhov siab.
Yog tias ib qho ntawm cov hom phiaj no ua tsis tiav, kev ua yeeb yam tuaj yeem xav tias "nyob deb," "resonant," lossis txawm tias ua rau cov neeg tuaj saib qaug zog.
2. Cov Qauv Tseem Ceeb: Lub Sijhawm Reverberation (RT)
Ib qho ntawm cov lus tseem ceeb tshaj plaws hauv chav acoustics yog Reverberation Time (RT) - lub sijhawm ntev npaum li cas rau lub suab kom ploj mus tom qab nws qhov chaw nres. Hauv cov chaw ua yeeb yam, RT feem ntau luv dua li hauv cov chaw ua yeeb yam kom ntseeg tau tias kev sib tham tseem meej.
Feem ntau:
– Ua yeeb yam: RT feem ntau yog li ntawm 0,8–1,2 vib nas this (nyob ntawm qhov ntim ntawm chav thiab cov ntaub ntawv).
– Ua yeeb yam suab paj nruag / ua yeeb yam opera: yuav ntev me ntsis, piv txwv li 1,2–1,6 vib nas this, vim tias suab paj nruag xav tau "lub cev" thiab sov so.
RT raug cuam tshuam los ntawm:
- Qhov ntim ntawm qhov chaw (qhov loj dua, RT feem ntau nce ntxiv).
- Cov ntaub ntawv uas nqus suab (cov ntaub pua plag, cov rooj zaum uas muaj ntaub npog, cov vaj huam sib luag acoustic, cov ntaub thaiv qhov rais).
– Tus naj npawb ntawm cov neeg tuaj saib (lub cev tib neeg nqus tau suab zoo heev).
Cov neeg tsim qauv ua yeeb yam yuav tsum tsom mus rau RTs uas phim lub luag haujlwm tseem ceeb ntawm qhov chaw , lossis muab cov kab ke sib txawv (piv txwv li, cov ntaub thaiv acoustic uas tuaj yeem qhib thiab kaw).
3. Kev Xav Thaum Ntxov: Pab Kom Pom Tseeb Thiab "Kev Sib Ze"
Kev nkag siab lus tsis yog nyob ntawm RT xwb, tab sis kuj nyob ntawm kev xav thaum ntxov - kev xav uas tuaj txog ntawm pob ntseg tsis ntev tom qab lub suab ncaj qha (feem ntau tsis pub dhau 20-80 milliseconds). Kev xav zoo thaum ntxov:
- ua kom lub suab nrov dua yam tsis muaj suab zoo li lub suab rov qab,
- muab qhov kev xav ntawm lub suab "ze" thiab "tam sim no",
- pab cov neeg mloog hauv lub rooj zaum tom qab ntes cov ntsiab lus ntawm kev sib tham.
Cov ntsiab lus tsim uas pab tsim kom muaj kev xav thawj zaug:
– cov phab ntsa sab uas nqus dej tsawg dua,
- cov nplaim ci ntsa iab ze ntawm theem,
- ib lub ru tsev lossis lub iav tiv thaiv suab nrov saum theem (tshwj xeeb tshaj yog rau kev ua yeeb yam tsis muaj microphones).
Ntawm qhov tod tes, cov chaw loj uas cuam tshuam nrog kev ncua sijhawm ntev dhau tuaj yeem tsim cov suab rov qab uas cuam tshuam.
4. Daim Ntawv Qhia Chaw thiab Geometry: Kev Tswj Xyuas Lub Zog Suab
Cov duab ntawm chav ua yeeb yam txiav txim siab seb lub suab mus li cas. Cov chaw ua yeeb yam niaj hnub no feem ntau siv cov qauv proscenium, thrust, lossis arena, thiab txhua tus muaj nws cov teeb meem acoustic.
Cov ntsiab cai dav dav ntawm acoustic geometry:
Tsis txhob siv cov chaw loj loj uas muaj qhov concave, vim tias lawv tuaj yeem ua rau lub suab tsom mus rau ib qho chaw tshwj xeeb, ua rau qee lub rooj zaum nrov dhau thaum lwm qhov chaw tsis muaj zog.
- Cov nto convex lossis angled pab kis lub suab kom sib npaug dua.
- Cov phab ntsa uas me ntsis "nthwv dej", muaj cov qauv, lossis muaj cov ntsiab lus diffuse pab kom faib tau sib npaug.
Qhov tseem ceeb, qhov chaw yuav tsum tau tsim kom lub zog suab tau faib tawm, tsis yog sau rau ib qho.
5. Kev Sib Txawv vs Kev Nqus: Kev Sib Npaug ntawm Tus cwj pwm ntawm Qhov Chaw
Hauv kev tsim qauv acoustic, ob lub tswv yim tseem ceeb yog:
- Kev nqus: nqus cov zog suab kom txo qhov cuam tshuam ntau dhau.
- Kev sib kis: nthuav tawm cov kev cuam tshuam kom lawv tsis txhob sib sau ua ke thiab tsim kom muaj "chaw" ntuj.
Kev ua yeeb yam xav tau kev sib npaug:
– Kev nqus dej ntau dhau → chav tsev zoo li "tuag lawm", lub suab nyias nyias, kev ua yeeb yam ntawm theem raug txo qis.
– Kev nqus dej tsawg dhau → chav suab rov qab, kev sib tham tsis meej.
Cov khoom siv nqus dej uas nquag siv: cov ntaub pua plag, cov rooj zaum ntaub, cov vaj huam sib luag acoustic uas muaj qhov nqus tau, cov ntaub thaiv qhov tuab.
Cov ntsiab lus diffusive: cov vaj huam sib luag textured, grilles, ornaments, txee lossis phab ntsa reliefs, diffuser modules.
Cov qauv tsim zoo tshaj plaws feem ntau muab ob qho ua ke los tsim kom muaj qhov chaw uas meej tab sis muaj sia nyob.
6. Suab Nrov Tom Qab: Tus Yeeb Ncuab Tseem Ceeb ntawm Kev Pom Tseeb
Cov chaw ua yeeb yaj kiab yuav tsum muaj suab nrov qis qis kom thiaj li hnov tau cov lus ntxhi lossis cov lus sib tham mos mos. Cov chaw nrov nrov feem ntau muaj xws li:
– AC (HVAC) system uas muaj suab nrov dhau,
- kev co ntawm cov hlab ntsha,
- suab nrov ntawm tsheb khiav los ntawm sab nraud,
- suab xau los ntawm chav pabcuam lossis chav tos txais qhua.
Cov kev daws teeb meem tsim qauv muaj xws li:
– xaiv cov tshuab HVAC uas ntsiag to,
- kev teeb tsa cov khoom siv cais kev co,
- kev tsim cov ducting uas muaj cua tsawg,
– phab ntsa thiab qhov rooj uas muaj kev rwb thaiv suab zoo,
- lub qhov rooj nkag lossis qhov chaw nruab nrab kom txo qhov suab tawm los ntawm sab nraud.
Hauv kev ua yeeb yam, "kev ntsiag to" yog ib feem ntawm qhov zoo ntawm qhov kev paub.
7. Kev Rwb Thaiv Suab: Ua Kom Qhov Kev Ua Yeeb Yam Sib Ze
Ntxiv rau kev tswj lub suab hauv chav (suab sab hauv), cov chaw ua yeeb yam kuj tseem yuav tsum tswj kev hloov suab ntawm cov chav. Kev ua yeeb yam raug cuam tshuam yog tias suab nrov sab nraud - piv txwv li, suab paj nruag los ntawm chav sib tw, lub tshuab nqa, lossis kev sib tham los ntawm txoj kev hauv tsev - nkag mus rau hauv chav ua yeeb yam.
Cov ntsiab cai ntawm kev cais tawm suav nrog:
- pawg (phab ntsa hnyav dua feem ntau zoo dua),
- qhov nruj (qhov me me hauv lub qhov rooj tuaj yeem xau cov suab loj),
– kev sib cais / kev sib cais ntawm cov qauv (piv txwv li phab ntsa ob chav lossis cov plag tsev ntab) kom txo qhov kev co.
Cov qhov rooj auditorium feem ntau xav tau cov lus qhia tshwj xeeb txog kev suab, suav nrog cov foob perimeter thiab cov tshuab kaw tsis siv neeg.
8. Theem thiab Chaw Txhawb Nqa: Suab rau Cov Neeg Ua Yeeb Yam
Cov suab paj nruag tsis yog rau cov neeg tuaj saib xwb. Cov neeg ua yeeb yam saum theem yuav tsum hnov:
- lawv tus kheej lub suab,
- tus neeg ua yeeb yam ua ke,
- suab paj nruag nrog.
Yog tias lub sam thiaj nqus dej ntau dhau los yog "qhib" dhau yam tsis muaj cov iav tiv thaiv, cov neeg ua yeeb yam yuav muaj teeb meem tso lawv lub suab, thiab cov neeg ua suab paj nruag yuav poob qhov sib xws ntawm lub suab. Yog li ntawd, ntau tus qauv tsim muaj xws li:
- cov teeb pom kev zoo ntawm theem,
- cov vaj huam sib luag ci ntsa iab ntawm ob sab ntawm theem,
- kev npaj cov ntaub ntawv hauv pem teb uas txhawb nqa kev xav.
Rau cov neeg hu nkauj ua ke, qhov chaw ua si (yog tias muaj) kuj yuav tsum tau tsim los kom muaj kev sib npaug ntawm suab paj nruag thiab kev sib tham.
9. Cov Tshuab Suab: Ib Qho Kev Ua Ntxiv, Tsis Yog Kev Hloov Chaw
Ntau lub tsev ua yeeb yam niaj hnub no siv cov microphones thiab cov neeg hais lus, tab sis cov tshuab electroacoustic zoo tagnrho rau cov suab zoo hauv chav, tsis yog npog cov qauv tsim tsis zoo. Yog tias chav tsev nrov dhau lossis muaj suab rov qab, cov neeg hais lus tuaj yeem ua rau qhov tsis meej ntxiv.
Txoj kev zoo:
- qhov kev tsim qauv acoustic ntawm chav tsev yog ua kom zoo tshaj plaws ua ntej,
- Cov tshuab hais lus siv rau kev sib npaug, kev ua kom lub teeb ci ntsa iab, thiab cov kev xav tau tshwj xeeb,
- Qhov chaw tso lub hais lus suav nrog qhov kev taw qhia ntawm kev cuam tshuam thiab lub sijhawm sib phim kom lub suab ntuj.
Kev kaw
Cov ntsiab cai tseem ceeb ntawm kev siv suab hauv kev tsim ua yeeb yam tsom mus rau seb lub suab raug tso tawm li cas, cuam tshuam, nqus, thiab tiv thaiv los ntawm kev cuam tshuam sab nraud. Tus yuam sij rau kev ua yeeb yam zoo yog kev sib xyaw ua ke ntawm RT tsim nyog, kev xav thaum ntxov uas txhawb kev meej, daim ntawv chaw uas faib suab sib npaug, kev tswj suab nrov tom qab, thiab kev rwb thaiv suab zoo. Thaum cov ntsiab cai no raug siv kom raug, ua yeeb yam tsis yog tsuas yog qhov chaw ua yeeb yam xwb tab sis kuj yog qhov chaw uas ua rau cov neeg tuaj saib muaj kev xav, zaj dab neeg, thiab kev paub dav dav.
Yog tias koj xav tau, kuv tuaj yeem hloov kho tsab xov xwm no rau ib qho xwm txheej tshwj xeeb (piv txwv li, chav ua yeeb yam hauv tsev kawm qib siab, chav ua yeeb yam ntau lub hom phiaj, lossis chav ua yeeb yam ib txwm muaj), suav nrog cov lus qhia txog cov ntaub ntawv thiab cov piv txwv ntawm cov qauv tsim.
