Suab qauv

Kab lus no tau mob siab rau cov ntsiab lus ntawm cov hais lus nrov. Peb yuav sim tshem tawm ntau cov dab neeg hais txog lawv thiab piav qhia tias lub suab nrov yog dab tsi, ob qho tib si ib txwm muaj thiab cov uas muaj peev xwm ua qauv acoustic beam.

Ua ntej, cia peb qhia qee cov ntsiab lus ntawm electroacoustics uas peb yuav ua haujlwm hauv tsab xov xwm no. Lub suab nrov yog ib qho hluav taws xob-acoustic transducer uas tau teeb tsa hauv tsev. Tsuas yog kev sib xyaw ua ke ntawm ob peb lub suab nrov hauv ib lub tsev tsim kom muaj lub suab nrov nrov. Ib hom suab nrov tshwj xeeb yog lub suab nrov.

Lub suab nrov yog dab tsi?

Lub suab nrov yog rau ntau tus neeg ib tus neeg hais lus tso rau hauv tsev, tab sis nws tsis yog qhov tseeb. Ib lub suab nrov yog ib lub suab nrov tshwj xeeb, uas nyob rau hauv nws lub tsev muaj ob peb mus rau ib lub kaum los yog li ntawm tib lub tshuab hluav taws xob-acoustic transducers (hais lus) vertically. Ua tsaug rau cov qauv no, nws muaj peev xwm tsim ib qhov chaw nrog cov khoom zoo ib yam li cov kab tawm, tau kawg rau qee qhov ntau zaus. Lub acoustic tsis xws li ib qhov chaw yog ncaj qha ntsig txog nws qhov siab, tus naj npawb ntawm cov neeg hais lus tso rau hauv nws thiab qhov kev ncua deb ntawm cov transducers. Peb yuav sim piav qhia txog lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov cuab yeej tshwj xeeb no, nrog rau piav qhia txog lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov kab nrov zuj zus nrog cov kab hluav taws xob digitally tswj acoustic.

Dab tsi yog lub suab qauv qauv hais lus?

Lub suab nrov tsis ntev los no pom nyob rau hauv peb lub khw muaj kev xaiv ntawm kev ua qauv ntawm acoustic beam. Qhov luaj li cas thiab cov tsos zoo ib yam li cov neeg hais lus nrov, paub zoo thiab siv txij li XNUMXs. Digitally tswj cov hais lus nrov yog siv hauv kev teeb tsa zoo sib xws li lawv cov analog ua ntej. Cov khoom siv nrov nrov no tuaj yeem pom, ntawm lwm tus, hauv cov tsev teev ntuj, cov neeg caij tsheb npav ntawm cov chaw nres tsheb ciav hlau lossis tshav dav hlau, cov chaw pej xeem, tsev hais plaub thiab cov chaw ua kis las. Txawm li cas los xij, muaj ntau yam uas digitally tswj acoustic beam kab ntau dua cov kev daws teeb meem.

Acoustic yam

Txhua qhov chaw uas tau hais los saum toj no yog tus cwj pwm los ntawm qhov nyuaj acoustics, cuam tshuam nrog lawv qhov cubature thiab muaj qhov cuam tshuam zoo heev, uas txhais tau ncaj qha mus rau lub sijhawm loj reverberation RT60s (RT60 "reverbation time") hauv cov chav no.

Cov chav zoo li no yuav tsum tau siv cov khoom siv nrov nrov nrog kev ncaj ncees siab. Qhov sib piv ntawm cov suab ncaj qha mus rau lub suab yuav tsum siab txaus rau kev txawj ntse ntawm kev hais lus thiab suab paj nruag kom siab li ntau tau. Yog tias peb siv cov suab nrov nrov nrog cov yam ntxwv tsis tshua muaj kev taw qhia hauv chav acoustic nyuaj, nws yuav tig tawm tias lub suab tsim tawm yuav cuam tshuam los ntawm ntau qhov chaw, yog li qhov sib piv ntawm lub suab ncaj qha rau lub suab yuav txo qis. Hauv qhov xwm txheej zoo li no, tsuas yog cov neeg mloog uas nyob ze heev ntawm lub suab yuav tuaj yeem nkag siab zoo txog cov lus uas ncav cuag lawv.

Architectural yam

Txhawm rau kom tau txais qhov tsim nyog piv ntawm qhov zoo ntawm lub suab tsim nyob rau hauv kev sib raug zoo nrog tus nqi ntawm lub suab kaw lus, ib qho me me ntawm cov suab nrov uas muaj qhov siab Q (directivity) yuav tsum tau siv. Yog li vim li cas peb thiaj tsis pom cov tshuab raj loj lossis kab-array hauv cov chaw uas tau hais tseg no, xws li chaw nres tsheb, cov chaw nres tsheb, cov tsev teev ntuj? Muaj cov lus teb yooj yim heev ntawm no - cov kws tsim vaj tsev tsim cov tsev no feem ntau coj los ntawm kev zoo nkauj. Cov tshuab raj loj lossis kab-array pawg tsis sib xws nrog cov qauv ntawm chav tsev nrog lawv qhov loj, uas yog vim li cas architects tsis pom zoo rau lawv siv. Qhov kev sib haum xeeb hauv qhov no feem ntau yog cov neeg hais lus nrov, txawm tias ua ntej tshwj xeeb DSP circuits thiab muaj peev xwm tswj tau txhua tus tsav tsheb tau tsim rau lawv. Cov khoom siv no tuaj yeem muab zais tau yooj yim hauv cov qauv ntawm chav tsev. Lawv feem ntau yog mounted ze rau ntawm phab ntsa thiab tuaj yeem ua xim nrog cov xim ntawm qhov chaw nyob ib puag ncig. Nws yog ib qho kev daws teeb meem zoo nkauj dua thiab, qhov tseem ceeb tshaj, tau txais ntau dua los ntawm architects.

Kab-arrays tsis yog tshiab!

Lub hauv paus ntsiab lus ntawm lub hauv paus ntsiab lus nrog kev suav lej thiab cov lus piav qhia ntawm lawv cov yam ntxwv ncaj qha tau piav qhia zoo heev los ntawm Hary F. Olson hauv nws phau ntawv "Acoustical Engineering", luam tawm thawj zaug hauv xyoo 1940. Peb yuav pom cov lus piav qhia ntxaws heev ntawm lub cev phenomena tshwm sim nyob rau hauv nrov hais lus siv cov khoom ntawm ib tug kab qhov chaw

Cov lus hauv qab no qhia txog cov khoom acoustic ntawm cov suab nrov nrov:

Ib qho khoom tsis zoo ntawm cov neeg hais lus nrov yog qhov zaus teb ntawm cov kab ke no tsis tiaj tus. Lawv tsim tsim muaj zog ntau dua nyob rau hauv qhov tsawg zaus. Lub zog no feem ntau tsis tshua muaj kev taw qhia, yog li qhov kev faib tawm ntsug yuav ntau dua rau cov zaus siab dua. Raws li nws feem ntau paub, cov chav acoustic nyuaj feem ntau tshwm sim los ntawm lub sij hawm ntev reverberation nyob rau hauv ntau yam tsawg zaus, uas, vim lub zog ntau zog nyob rau hauv no zaus band, yuav ua rau ib tug deterioration ntawm kev txawj ntse hais lus.

Txhawm rau piav qhia tias vim li cas cov neeg hais lus nrov coj tus cwj pwm li no, peb yuav piav qhia luv luv txog qee lub ntsiab lus ntawm lub cev rau cov neeg hais lus nrov thiab cov uas muaj cov kab hluav taws xob digital tswj.

Point qhov chaw sib cuam tshuam

• Kev taw qhia ntawm ob qhov chaw

Thaum ob lub ntsiab lus sib cais los ntawm ib nrab wavelength (λ / 2) tsim tib lub teeb liab, cov teeb liab hauv qab thiab saum toj no ib qho array yuav tshem tawm ib leeg tawm, thiab ntawm axis ntawm array lub teeb liab yuav ua kom nrov dua ob zaug (6 dB).

λ / 4 (ib lub hlis twg ntawm lub wavelength - rau ib zaus)

Thaum ob qhov chaw sib nrug los ntawm qhov ntev ntawm λ / 4 lossis tsawg dua (qhov ntev no, ntawm chav kawm, hais txog ib zaus), peb pom me ntsis nqaim ntawm cov yam ntxwv taw qhia hauv lub dav hlau ntsug.

λ / 4 (ib lub hlis twg ntawm lub wavelength - rau ib zaus)

Thaum ob qhov chaw sib nrug los ntawm qhov ntev ntawm λ / 4 lossis tsawg dua (qhov ntev no, ntawm chav kawm, hais txog ib zaus), peb pom me ntsis nqaim ntawm cov yam ntxwv taw qhia hauv lub dav hlau ntsug.

λ (ib wavelength)

Ib qho sib txawv ntawm ib lub wavelength yuav ua kom pom cov cim ob qho tib si vertically thiab horizontally. Lub acoustic beam yuav siv daim ntawv ntawm ob nplooj

2l

Raws li qhov piv ntawm lub wavelength mus rau qhov kev ncua deb ntawm cov transducers nce, tus naj npawb ntawm sab lobes kuj nce. Rau tus naj npawb tas li thiab kev ncua deb ntawm cov transducers hauv cov kab hluav taws xob, qhov sib piv no nce nrog zaus (qhov no yog qhov uas waveguides tuaj yeem siv tau, feem ntau siv hauv kab-array teeb).

Cov kev txwv ntawm kab kab

Qhov kev ncua deb ntawm tus neeg hais lus txiav txim siab txog qhov ntau zaus uas lub kaw lus yuav ua raws li kab lus. Qhov siab qhov siab txiav txim qhov tsawg zaus uas qhov system no yog kev taw qhia.

Qhov siab qhov siab piv rau wavelength

L / 2

Rau lub wavelengths ntau dua ob zaug ntawm qhov siab ntawm qhov chaw, tsis muaj kev tswj hwm ntawm cov yam ntxwv taw qhia. Hauv qhov no, qhov chaw tuaj yeem kho tau raws li qhov chaw taw tes nrog cov zis ntau heev.

λ

Qhov siab ntawm kab qhov chaw txiav txim siab lub wavelength uas peb yuav soj ntsuam ib qho tseem ceeb nce nyob rau hauv directivity nyob rau hauv lub ntsug dav hlau.

2 l

Ntawm cov zaus siab dua, lub nqaj qhov siab txo qis. Sab lobes pib tshwm, tab sis piv rau lub zog ntawm lub ntsiab lobe, lawv tsis muaj txiaj ntsig zoo.

4 l

Lub ntsug directionality nce ntau thiab ntau, lub ntsiab lobe zog tseem nce.

Kev ncua deb ntawm tus kheej transducers piv rau wavelength

L / 2

Thaum cov transducers tsis ntau tshaj li ib nrab ntawm lub wavelength sib nrug, lub hauv paus tsim ib tug heev directional beam nrog tsawg kawg nkaus sab lobes.

λ

Sab lobes nrog lub zog tseem ceeb thiab ntsuas tau yog tsim nrog ntau zaus. Qhov no tsis tas yuav muaj teeb meem vim tias feem ntau ntawm cov neeg mloog nyob sab nraud ntawm cheeb tsam no.

2l

Tus naj npawb ntawm sab lobes doubles. Nws yog ib qho nyuaj heev los cais cov neeg mloog thiab qhov chaw muaj kev cuam tshuam los ntawm thaj chaw hluav taws xob no.

4l

Thaum qhov kev ncua deb ntawm cov transducers yog plaub npaug ntawm lub wavelength, yog li ntau sab lobes raug tsim tawm tias qhov chaw pib zoo li qhov chaw taw tes thiab qhov kev coj ncaj qha poob qis.

Multi-channel DSP circuits tuaj yeem tswj qhov siab ntawm qhov chaw

Kev tswj hwm ntau zaus yog nyob ntawm qhov kev ncua deb ntawm ib tus neeg siab zaus transducers. Qhov kev sib tw rau cov neeg tsim qauv yog kom txo qhov kev ncua deb no thaum tswj cov lus teb zoo tshaj plaws thiab qhov siab tshaj plaws acoustic lub zog tsim los ntawm cov cuab yeej zoo li no. Cov ntaub ntawv kab ua ntau thiab ntau qhov taw qhia raws li qhov zaus nce. Ntawm qhov siab tshaj plaws, lawv tseem muaj kev taw qhia dhau los kom paub siv cov nyhuv no. Ua tsaug rau qhov muaj peev xwm ntawm kev siv cais DSP systems thiab amplification rau txhua tus transducers, nws muaj peev xwm tswj tau qhov dav ntawm lub generated ntsug acoustic beam. Cov txheej txheem yog yooj yim: tsuas yog siv cov ntxaij lim dej uas tsis tshua muaj los txo cov qib thiab qhov siv tau ntau zaus rau cov neeg hais lus nrov hauv lub txee. Txhawm rau txav lub nqaj kom deb ntawm qhov chaw ntawm lub tsev, peb hloov cov kab lim thiab qhov kev txiav tawm zaus (qhov maj mam tshaj plaws rau cov neeg hais lus nyob hauv nruab nrab ntawm lub tsev). Hom kev ua haujlwm no yuav ua tsis tau yam tsis muaj kev siv lub tshuab hluav taws xob cais thiab DSP Circuit Court rau txhua tus hais lus nrov hauv cov kab no.

Lub suab nrov ib txwm tso cai rau koj los tswj cov kab hluav taws xob ntsug, tab sis qhov dav ntawm lub nqaj hloov pauv nrog zaus. Feem ntau hais lus, qhov cuam tshuam ncaj qha Q yog qhov sib txawv thiab qis dua qhov xav tau.

Acoustic beam qaij tswj

Raws li peb paub, keeb kwm nyiam rov hais dua nws tus kheej. Hauv qab no yog ib daim ntawv qhia los ntawm phau ntawv los ntawm Harry F. Olson "Acoustical Engineering". Digitally ncua cov hluav taws xob ntawm ib tus neeg hais lus ntawm ib txoj kab yog raws nraim tib yam li lub cev sloping ntawm kab. Tom qab xyoo 1957, nws siv sijhawm ntev rau kev siv thev naus laus zis los siv qhov tshwm sim no, thaum khaws cov nqi ntawm qhov pom zoo.

Kab qhov chaw nrog DSP circuits daws tau ntau yam teeb meem architectural thiab acoustic

• Variable ntsug directivity yam Q ntawm lub radiated acoustic beam.

DSP circuits rau kab qhov chaw ua rau nws muaj peev xwm hloov qhov dav ntawm lub acoustic beam. Qhov no ua tau ua tsaug rau kev cuam tshuam kev txheeb xyuas rau tus neeg hais lus. ICONYX kem los ntawm American tuam txhab Renkus-Heinz tso cai rau koj hloov qhov dav ntawm lub beam nyob rau hauv ntau yam: 5, 10, 15 thiab 20 °, ntawm chav kawm, yog hais tias xws li ib kem yog txaus siab (tsuas yog lub IC24 vaj tse tso cai rau koj. xaiv ib lub teeb nrog qhov dav ntawm 5 °). Nyob rau hauv txoj kev no, nqaim acoustic beam zam qhov tsis tsim nyog xav tau los ntawm hauv pem teb lossis qab nthab hauv cov chav uas muaj zog heev.

Kev coj ncaj qha tsis tu ncua Q nrog nce zaus

Ua tsaug rau DSP circuits thiab lub hwj chim amplifiers rau txhua qhov ntawm cov transducers, peb tuaj yeem tswj tau qhov kev coj ua tsis tu ncua ntawm ntau qhov ntau zaus. Nws tsis tsuas yog txo qis cov suab nrov hauv chav, tab sis kuj tseem muaj qhov nce mus tas li rau qhov dav zaus band.

Muaj peev xwm coj cov kab hluav taws xob acoustic tsis hais qhov chaw ntawm kev teeb tsa

Txawm hais tias kev tswj hwm ntawm cov kab hluav taws xob acoustic yog qhov yooj yim los ntawm lub teeb liab ua qhov pom, nws tseem ceeb heev rau kev tsim vaj tsev. Xws li qhov ua tau ua rau muaj qhov tseeb tias tsis muaj qhov tsim nyog rau qaij lub suab nrov ntawm lub cev, peb tsim lub qhov muag zoo nkauj lub suab uas sib xyaw nrog cov qauv tsim. ICONYX kuj tseem muaj peev xwm los teeb tsa qhov chaw ntawm lub acoustic beam center.

Kev siv cov qauv linear qhov chaw

• Cov tsev teev ntuj

Ntau lub tsev teev ntuj muaj cov yam ntxwv zoo sib xws: lub qab nthab siab heev, pob zeb lossis iav tsom iav, tsis muaj qhov nqus dej. Tag nrho cov no ua rau lub sij hawm reverberation nyob rau hauv cov chav no ntev heev, mus txog txawm ob peb vib nas this, uas ua rau kev hais lus txawj ntse heev.

• Cov chaw thauj pej xeem

Cov tshav dav hlau thiab cov chaw tsheb ciav hlau feem ntau ua tiav nrog cov ntaub ntawv zoo sib xws rau cov khoom siv hauv pawg ntseeg. Cov chaw thauj neeg pej xeem tseem ceeb heev vim tias cov lus hais txog kev tuaj txog, tawm mus lossis ncua sijhawm mus txog cov neeg caij tsheb yuav tsum nkag siab.

• Tsev khaws puav pheej, Auditoriums, Lobby

Ntau lub tsev ntawm qhov me me dua li kev thauj mus los hauv pej xeem lossis cov tsev teev ntuj muaj qhov tsis zoo acoustic tsis zoo sib xws. Ob qhov kev sib tw tseem ceeb rau cov kab qauv digitally yog lub sijhawm ntev reverberation uas cuam tshuam rau kev txawj ntse ntawm kev hais lus, thiab qhov pom kev, uas yog qhov tseem ceeb heev hauv kev xaiv zaum kawg ntawm hom chaw nyob hauv pej xeem.

Cov qauv tsim. Full-band acoustic zog

Txhua kab hauv paus, txawm tias cov uas muaj DSP circuits siab heev, tsuas yog tswj tau nyob rau hauv ib qho kev siv ntau zaus. Txawm li cas los xij, kev siv cov coaxial transducers tsim cov kab hluav taws xob hauv hluav taws xob muab tag nrho lub zog acoustic hla ntau yam. Yog li ntawd lub suab yog meej thiab zoo heev. Hauv cov ntawv thov raug siv rau kev hais lus lossis cov suab paj nruag tag nrho, feem ntau ntawm lub zog yog nyob rau hauv ntau yam uas peb tuaj yeem tswj tau ua tsaug rau cov tsav tsheb coaxial built-in.

Kev tswj tag nrho nrog cov cuab yeej siab heev

Txhawm rau kom ua tiav qhov ua tau zoo ntawm cov qauv digitally linear qhov chaw, nws tsis txaus los siv cov khoom siv hluav taws xob zoo xwb. Tom qab tag nrho, peb paub tias txhawm rau kom muaj kev tswj hwm tag nrho ntawm cov tsis muaj suab nrov, peb yuav tsum siv cov khoom siv hluav taws xob siab heev. Cov kev xav zoo li no tau yuam kom siv ntau cov channel amplification thiab DSP circuits. Lub D2 nti, siv nyob rau hauv ICONYX nrov hais lus, muab ntau-ntau-channel amplification, tag nrho tswj ntawm DSP processors thiab optionally ntau analog thiab digital inputs. Thaum lub encoded PCM teeb liab xa mus rau kem nyob rau hauv daim ntawv ntawm AES3 los yog CobraNet cov teeb liab, lub D2 nti tam sim ntawd converts nws mus rau hauv ib tug PWM teeb liab. Thawj tiam digital amplifiers hloov lub PCM teeb liab thawj zaug rau hauv cov cim analog thiab tom qab ntawd mus rau PWM cov cim. Qhov no A / D - D / A hloov dua siab tshiab hmoov tsis tau nce nqi, distortion thiab latency considerably.

yooj Yim

Lub suab ntuj thiab meej ntawm cov qauv kab qauv ua rau nws tuaj yeem siv qhov kev daws teeb meem no tsis yog hauv cov chaw thauj pej xeem, cov tsev teev ntuj thiab tsev cia puav pheej. Cov qauv qauv ntawm ICONYX txhua kab tso cai rau koj los sib sau cov kab ntawv raws li qhov xav tau ntawm chav muab. Kev tswj hwm ntawm txhua lub ntsiab lus ntawm qhov chaw zoo li no muab qhov yooj yim thaum teeb tsa, piv txwv li, ntau lub ntsiab lus, qhov chaw acoustic ntawm cov kab hluav taws xob raug tsim, piv txwv li ntau qhov chaw. Qhov nruab nrab ntawm cov nqaj no tuaj yeem nyob txhua qhov chaw raws li tag nrho qhov siab ntawm kab. Nws yog ua tau vim ua kom me me qhov nrug deb ntawm high-frequency transducers.

Kab rov tav cov kab hluav taws xob yog nyob ntawm cov kab ke

Raws li nrog rau lwm cov kab ntsug, lub suab los ntawm ICONYX tsuas tuaj yeem tswj tau ntsug. Lub kaum sab xis kab rov tav yog qhov tsis tu ncua thiab nyob ntawm hom transducers siv. Cov siv nyob rau hauv IC kem muaj lub kaum sab xis nyob rau hauv ib tug dav zaus band, qhov sib txawv yog nyob rau hauv ntau ntawm 140 mus rau 150 Hz rau suab nyob rau hauv lub band ntawm 100 Hz mus rau 16 kHz.

Lub kaum sab xis dav ntawm cov hluav taws xob muab kev ua haujlwm zoo dua

Qhov dav dispersion, tshwj xeeb tshaj yog nyob rau hauv high zaus, ua kom zoo dua coherence thiab intelligibility ntawm lub suab, tshwj xeeb tshaj yog nyob rau ntawm ntug ntawm lub directivity yam ntxwv. Hauv ntau lub sijhawm, lub kaum sab xis dav dua txhais tau hais tias siv lub suab nrov tsawg dua, uas txhais tau ncaj qha rau hauv kev txuag nyiaj.

Qhov sib txawv ntawm qhov sib txawv ntawm cov khoom

Peb paub zoo tias cov yam ntxwv ncaj qha ntawm tus neeg hais lus tiag tiag tsis tuaj yeem tsis sib xws thoob plaws txhua qhov ntau zaus. Vim qhov loj ntawm qhov chaw zoo li no, nws yuav dhau los ua kev taw qhia ntau dua li qhov zaus nce. Nyob rau hauv cov ntaub ntawv ntawm ICONYX lub suab nrov, cov neeg hais lus siv nyob rau hauv nws yog omni-directional nyob rau hauv lub band mus txog 300 Hz, semicircular nyob rau hauv thaj tsam ntawm 300 Hz mus rau 1 kHz, thiab rau lub band los ntawm 1 kHz mus rau 10 kHz, lub directivity yam ntxwv yog conical thiab nws cov kaum sab xis yog 140 ° × 140 °. Cov qauv lej zoo tshaj plaws ntawm cov kab tawm uas tsim los ntawm qhov zoo tshaj plaws omnidirectional point qhov chaw yuav txawv ntawm qhov tseeb transducers. Cov kev ntsuas qhia tau hais tias qhov rov qab hluav taws xob hluav taws xob ntawm lub cev tiag tiag yog me dua li cov qauv lej.

ICONYX @ λ (wavelength) kab qhov chaw

Peb tuaj yeem pom tias cov kab teeb muaj cov duab zoo sib xws, tab sis rau IC32 kem, plaub zaug loj dua IC8, tus yam ntxwv nqaim heev.

Rau qhov zaus ntawm 1,25 kHz, ib nqaj yog tsim nrog lub kaum sab xis ntawm 10 °. Sab lobes yog 9 dB tsawg dua.

Rau qhov zaus ntawm 3,1 kHz peb pom lub teeb pom kev zoo acoustic nrog lub kaum sab xis ntawm 10 °. Los ntawm txoj kev, ob sab lobes raug tsim, uas yog qhov txawv txav ntawm lub ntsiab nqaj, qhov no tsis ua rau muaj qhov tsis zoo.

Kev coj ncaj ncees tas li ntawm ICONYX kab

Rau qhov zaus ntawm 500 Hz (5 λ), kev coj ncaj qha yog qhov tsis tu ncua ntawm 10 °, uas tau lees paub los ntawm kev sim ua ntej rau 100 Hz thiab 1,25 kHz.

Beam qaij yog ib qho yooj yim zuj zus retardation ntawm successive loudspeakers

Yog tias peb lub cev qaij lub suab nrov, peb hloov cov tsav tsheb tom ntej hauv lub sijhawm uas cuam tshuam rau txoj haujlwm mloog. Hom kev hloov no ua rau "suab nqes hav" rau tus mloog. Peb tuaj yeem ua tiav cov txiaj ntsig zoo ib yam los ntawm kev dai tus neeg hais lus vertically thiab qhia txog kev ncua sij hawm rau cov neeg tsav tsheb nyob rau hauv cov kev taw qhia uas peb xav kom coj lub suab. Txhawm rau kom muaj txiaj ntsig zoo (tilting) ntawm cov kab hluav taws xob acoustic, qhov chaw yuav tsum muaj qhov siab sib npaug ntawm ob zaug lub wavelength rau qhov muab zaus.

Nrog cov qauv qauv ntawm ICONYX kab, nws muaj peev xwm ua tau zoo qaij lub nqaj rau:

• IC8: 800Hz

• IC16: 400Hz

• IC24: 250Hz

• IC32: 200Hz

BeamWare – ICONYX Kem Beam Modeling software

Cov qauv qauv uas tau piav qhia ua ntej qhia peb tias hom kev nqis tes ua ntawm cov teeb liab digital peb yuav tsum tau siv (qhov sib txawv ntawm cov ntxaij lim dej qis dhau ntawm txhua lub suab nrov hauv kab) kom tau txais cov txiaj ntsig xav tau.

Lub tswv yim yog qhov yooj yim - nyob rau hauv rooj plaub ntawm IC16 kem, lub software yuav tsum hloov thiab tom qab ntawd siv kaum rau FIR lim chaw thiab kaum rau kev ywj pheej ncua sijhawm. Txhawm rau hloov lub acoustic centre ntawm cov kab hluav taws xob, siv qhov kev ncua deb ntawm cov high-frequency transducers nyob rau hauv kem tsev nyob, peb yuav tsum tau xam thiab siv ib tug tshiab txheej txheej rau tag nrho cov lim thiab qeeb.

Tsim kom muaj tus qauv theoretical yog qhov tsim nyog, tab sis peb yuav tsum coj mus rau hauv tus account qhov tseeb tias cov neeg hais lus tau coj txawv txawv, ntau qhov taw qhia, thiab kev ntsuas ua pov thawj tias cov txiaj ntsig tau txais zoo dua li cov simulated nrog lej algorithms.

Niaj hnub no, nrog rau kev txhim kho thev naus laus zis zoo li no, cov khoos phis tawj processors twb sib npaug rau txoj haujlwm. BeamWare siv cov duab sawv cev ntawm cov txiaj ntsig ntawm cov txiaj ntsig los ntawm graphically nkag mus rau cov ntaub ntawv hais txog qhov loj ntawm qhov chaw mloog, qhov siab thiab qhov chaw ntawm kab. BeamWare tau yooj yim tso cai rau koj xa tawm cov chaw mus rau cov kws tshaj lij acoustic software EASE thiab ncaj qha txuag cov chaw rau kab DSP kab ke. Qhov tshwm sim ntawm kev ua haujlwm hauv BeamWare software yog kwv yees, meej thiab rov ua tau zoo hauv cov xwm txheej tiag tiag.

ICONYX - lub cim tshiab ntawm lub suab

• Suab zoo

Lub suab ntawm ICONYX yog tus qauv tsim los ntev dhau los los ntawm tus tsim khoom Renkus-Heinz. ICONYX kem yog tsim los tsim dua ob qho kev hais lus thiab cov suab paj nruag tag nrho ntawm qhov zoo tshaj plaws.

• Kev nthuav dav dav

Nws yog ua tau ua tsaug rau kev siv cov lus coaxial nrog lub kaum sab xis dav ntawm cov hluav taws xob (txawm tias mus txog 150 ° hauv lub dav hlau ntsug), tshwj xeeb tshaj yog rau qhov ntau zaus. Qhov no txhais tau hais tias muaj cov lus teb ntau dua nyob thoob plaws hauv cheeb tsam thiab dav dua, uas txhais tau hais tias siv tsawg dua cov suab nrov hauv qhov chaw.

• Kev hloov pauv yooj

Lub ICONYX yog lub suab nrov ntsug nrog cov neeg tsav tsheb sib xws uas tau muab tso ze rau ib leeg. Vim yog qhov me me thiab qhov deb tsis tu ncua ntawm cov neeg hais lus nrov hauv tsev, qhov kev hloov pauv ntawm qhov chaw acoustic ntawm lub teeb hluav taws xob hauv lub dav hlau ntsug yog qhov ua tau raws li qhov xav tau. Cov khoom no muaj txiaj ntsig zoo heev, tshwj xeeb tshaj yog thaum cov kev txwv kev tsim vaj tsev tsis tso cai rau qhov chaw tsim nyog (qhov siab) ntawm cov kab hauv cov khoom. Cov npoo rau qhov siab ntawm kev ncua ntawm xws li ib kem yog loj heev. Cov qauv tsim qauv thiab tag nrho configurability tso cai rau koj los txhais ntau qhov chaw nrog ib kab ntev ntawm koj pov tseg. Txhua kab hluav taws xob tuaj yeem muaj qhov dav sib txawv thiab qhov sib txawv.

• Tus nqi qis dua

Ib zaug ntxiv, ua tsaug rau kev siv cov lus coaxial, txhua tus hais lus ICONYX tso cai rau koj los npog thaj chaw dav heev. Peb paub tias qhov siab ntawm kem nyob ntawm seb muaj pes tsawg IC8 modules peb txuas rau ib leeg. Xws li cov qauv modular enables yooj yim thiab pheej yig thauj.

Lub ntsiab zoo ntawm ICONYX kab

• Tswj tau zoo dua ntawm cov hluav taws xob ntsug ntawm qhov chaw.

Qhov loj ntawm lub suab nrov yog ntau me dua li cov qauv qub, thaum tswj kev coj ua zoo dua, uas txhais tau ncaj qha rau hauv kev txawj ntse hauv cov xwm txheej reverberation. Cov qauv modular kuj tso cai rau cov kem teeb tsa raws li qhov xav tau ntawm qhov chaw thiab nyiaj txiag.

• Kev tsim tawm suab puv puv

Cov qauv nrov nrov yav dhau los tau tsim cov txiaj ntsig zoo me ntsis nrog rau cov lus teb zaus ntawm cov hais lus nrov nrov, vim tias qhov kev ua haujlwm muaj txiaj ntsig zoo nyob hauv thaj tsam ntawm 200 Hz txog 4 kHz. ICONYX lub suab nrov yog ib qho kev tsim kho uas ua kom muaj lub suab nrov puv hauv thaj tsam ntawm 120 Hz txog 16 kHz, thaum tuav lub kaum sab xis ntawm cov hluav taws xob nyob rau hauv lub dav hlau kab rov tav thoob plaws qhov ntau no. Tsis tas li ntawd, ICONYX modules yog hluav taws xob thiab acoustic ntau npaum li cas: lawv tsawg kawg yog 3-4 dB "nrov" dua li lawv cov thawj coj ntawm qhov loj me.

• Advanced electronics

Txhua lub converters nyob rau hauv lub tsev yog tsav los ntawm ib tug cais amplifier Circuit Court thiab DSP Circuit Court. Thaum AES3 (AES / EBU) lossis CobraNet inputs raug siv, cov teeb liab yog "digitally clear". Qhov no txhais tau hais tias DSP circuits ncaj qha hloov PCM input signals rau PWM cov cim tsis tsim nyog A / D thiab C / A hloov dua siab tshiab.

• Advanced DSP circuits

Cov txheej txheem ua haujlwm siab tshaj plaws tau tsim tshwj xeeb rau ICONYX kab thiab lub qhov muag-phooj ywg BeamWare interface pab txhawb kev ua haujlwm ntawm cov neeg siv, ua tsaug uas lawv tuaj yeem siv tau ntau yam ntawm lawv cov peev txheej hauv ntau qhov chaw.

Summation

Kab lus no tau mob siab rau kev soj ntsuam ntxaws ntxaws ntawm cov hais lus nrov thiab qauv suab nrog DSP circuits siab heev. Nws yog ib qho tsim nyog hais tias txoj kev xav ntawm lub cev tshwm sim uas siv ob qho tib si ib txwm siv thiab digitally qauv nrov nrov tau piav qhia nyob rau hauv 50s. Tsuas yog nrog kev siv cov khoom pheej yig dua thiab zoo dua hluav taws xob yog nws muaj peev xwm tswj tau tag nrho cov txheej txheem ntawm lub cev hauv kev ua cov cim acoustic. Qhov kev paub no feem ntau muaj, tab sis peb tseem tab tom ntsib thiab peb yuav ntsib cov teeb meem uas tsis to taub ntawm lub cev tshwm sim ua rau muaj qhov yuam kev tsis tu ncua hauv kev teeb tsa thiab qhov chaw ntawm cov neeg hais lus nrov, ib qho piv txwv yuav yog qhov feem ntau kab rov tav sib dhos ntawm cov neeg hais lus (rau qhov zoo nkauj).

Tau kawg, hom kev ua no kuj tseem siv tau rau siab, thiab ib qho piv txwv zoo ntawm qhov no yog kab rov tav kev teeb tsa ntawm kab nrog cov neeg hais lus taw qhia downwards ntawm lub platforms ntawm cov chaw nres tsheb ciav hlau. Los ntawm kev siv lub suab nrov hauv txoj kev no, peb tuaj yeem tau los ze zog rau "da dej" nyhuv, qhov twg, mus dhau qhov ntau ntawm cov neeg hais lus nrov nrov (qhov chaw tawg yog lub tsev ntawm kem), lub suab qis qis heev. Nyob rau hauv txoj kev no, qhov kev xav ntawm lub suab tuaj yeem txo qis, ua kom muaj kev txhim kho tseem ceeb hauv kev txawj ntse hais lus.

Nyob rau lub sijhawm ntawm cov khoom siv hluav taws xob tsim tau zoo, peb ntsib ntau dua thiab ntau dua cov kev daws teeb meem tshiab, uas, txawm li cas los xij, siv tib lub physics uas tau tshawb pom thiab piav qhia ntev dhau los. Digitally qauv suab ua rau peb muaj peev xwm ua tau zoo los hloov mus rau cov chav acoustic nyuaj.

Cov neeg tsim khoom tau tshaj tawm txog kev ua tiav ntawm kev tswj hwm lub suab thiab kev tswj hwm, ib qho ntawm cov ntsiab lus zoo li no yog qhov tshwm sim ntawm cov hais lus nrov tshiab (modular IC2 los ntawm Renkus-Heinz), uas tuaj yeem muab tso ua ke hauv txhua txoj hauv kev kom tau txais lub suab nrov zoo, tag nrho tswj thaum uas yog ib tug linear qhov chaw thiab taw tes.