Peb-txoj kev thiab ob-txoj kev hais lus: nta, zoo, sib txawv

Nyob rau hauv hnub no tus lag luam tus tham uas hais nyob rau hauv ib tug ncaj loj ntau yam. Qhov no cov khoom yog txawv los ntawm txhua lwm yam nyob rau hauv lub Scope ntawm cov (lub cuab tam, kev hais kwv txhiaj, studio, thiab lwm yam) raws li qhov specifications thiab daim ntawv ntawm cov hull ntau lwm zoo. Qhov tseem ceeb tshaj parameter yuav pom tau tias nyob rau hauv thawj qhov chaw, yog tus naj npawb ntawm "tuav" nyob rau hauv lub system. Raws li qhov no txog kev paub, distinguished ib, peb- thiab ob-txoj kev hais lus. Yuav ua li cas lawv txawv los ntawm txhua lwm yam thiab uas system yog zoo dua, peb yuav sim teb nyob rau hauv no tsab xov xwm.

Tus zaus ntawm lub suab

Tib neeg lub nruab nrog lub rooj sib hais yuav tau paub txog lub suab ntawm ib zaus ntawm 20 mus rau 20,000 Hz. Yog li ntawd, qhov zoo ntawm cov suab paj nruag nyob rau hauv lub peev xwm ntawm cov khoom los tsim tau ib crisp suab tsis nyob rau hauv ib tug muab ntau yam. Rau lub hom phiaj no, nyob rau hauv cov lus pib muaj xws li hais lus uas cov me nyuam tsis tshua muaj neeg tsawg (20-150 Hz), medium (100-7000 Hz) thiab siab (5-20 txhiab. Hz) frequencies. Nyob rau hauv no hais txog, muaj:

1. SSB system, qhov twg rau tag nrho cov ntau zaus generates ib tug hais lus.
2. Ob-txoj kev hais lus, uas muaj ob tug hais lus: ib tug mus ua si suab paj nruag ntawm nruab nrab thiab tsawg frequencies, thiab lub thib ob - tsuas yog nyob rau qhov siab.
3. Peb kab khoom - mus ua si rau lub suab nyob rau hauv txhua ntau yam raws li ib tug nyias muaj nyias ib "kem".

Muaj cov khoom nrog ib tug ntau ntawm bands, qhov twg txhua hais lus reproduces suab nyob rau hauv ib tug tej yam ntau zaus. Cov feem nrov muaj ob thiab peb-txoj kab system - lawv yog cov feem ntau pheej yig thiab nyob rau tib lub sij hawm muab zoo heev suab zoo.

Qhov zoo ntawm cov ob-txoj kev hais lus

Ob-txoj kev hais lus yog cov feem ntau nrov ntawm cov neeg tsav tsheb. Lawv muab optimum suab zoo nyob rau tib lub sij hawm muaj ib tug nqi tsim nyog. Vim txoj kev loj hlob ntawm ob-txoj kev technology Acoustics nquag moog peb-band khoom, tab sis nws yog tseem tus nais khu vim hais tias ntawm lawv zoo:

1. Qhov yooj yooj yim tsim, uas simplifies lub installation thiab configuration.
2. Lub high degree ntawm taub hau ntawm tus tham, uas ua rau enhanced thiab suab zoo.
3. Qhov tseem natural, "nyob" suab.

Lub ob-txoj kab khoom muaj tsuas yog ob tug hais lus - lub ntses bass thaj tsam thiab treble. Ntses bass thaj tsam hais lus ua suab nrov nyob rau hauv cov tsawg thiab nruab nrab yog hom twg, thiab RF - Tsuas siab. Vim qhov no rau lub system xav tau tej yam yooj yim crossover tes hauj lwm.

Nta peb-band khoom

Peb-txoj kev hais lus yog txawv los ntawm lub twb piav system qhov zoo tshaj plaws lub suab. Khoom rau tej tshuab doukomplektovyvaetsya midrange neeg tsav tsheb, uas yog ib tug thiaj li hu ua "spatial" ntaub ntawv tsim surround suab. Nyob rau hauv tas li ntawd, vim lub sib cais ntawm cov hauj lwm, cov khoom siv tau los ua me me thiab. Tsis zoo zoo peb-band systems yog tus nqi siab. Nws yog ob mus rau peb lub sij hawm siab tshaj hais tias ntawm ob-txoj kev hais lus. Ntxiv mus, peb-txoj kev crossover acoustics yuav installation - complex zaus cov ntxaij lim dej. Yuav kom muab tej khoom yuav tsum muaj rau yav tom ntej lub rooj sib hais, los yog mus cuag sib xws ntawm tus tham yuav tsis ua hauj lwm.

Txawv hais lus

Tej zaj system muaj hais lus (MF, LF thiab RF), filtering cov khoom, lub teeb liab amplifiers, suab cables, thiab lub tswv yim terminals. Pom pab kiag li lawm yog lub luag hauj lwm rau lub sib cais ntawm lub lub teeb liab mus rau hauv ob peb bands. Acoustic dual band lim zaus divides mus rau hauv ob lub "feem" - mus 5-6 txhiab Hz thiab saum toj no 6 kHz .. Peb-txoj kev pab kiag li lawm yog feem ntau nruab nrog crossovers - adjustable zaus cov ntxaij lim dej uas faib lub ntim ntau yam rau hauv peb seem.

Tag nrho cov acoustic khoom yuav ua kom nquag plias los yog passive. Nyob rau hauv rooj plaub thawj txhua loudspeaker yog txawm peem rau nrog ib tug nyias muaj nyias ib lub teeb liab amplifier. Cov tshuaj no tswj lub kawm tuab si lug ntawm emitters, txo zuag qhia tag nrho system nqi. Txawm li cas los, nrog cov ua complexity ntawm kev pab, installation thiab thawj zaug configuration. Cais amplifiers feem ntau complementary txheej ntawm peb-txoj kev pab kiag li lawm.

Coaxial thiab Tivthaiv hais lus

Qhov ntawd yuav sound li ib tug peb- los yog ob-txoj kev hais lus nyob rau hauv ib lub tsheb nyob rau hauv lub hom hais lus uas yog coaxial thiab tivthaiv. Tus thawj yog ib tug hluas monolithic qauv nyob rau hauv uas lub dab ua ke siab, medium thiab tsawg frequencies. Cov tshuaj no yuav ua rau nws lub suab heev directional. Yog li ntawd, xws apparatus yog siv raws li ib tug ntxiv thiab dua li nyob rau hauv me me tsheb. Tivthaiv hais lus yog ib tug emitters, uas yuav tsum tau teem nyob rau hauv txawv qhov chaw. Vim qhov no nws yog tau mus cuag surround suab, li cas los xij, yog tham installation txheej txheem. Tsis tas li ntawd, vim tsis raws cai installation ntawm lub suab theem yuav ua tau heev ua kev. Tivthaiv systems ntsia tau rau hauv lub tsheb nrog ib tug dav sab hauv.

Qhov teeb meem nqi

Raws li twb tau hais, ob-txoj kev hais lus yuav muaj ntau yam pheej yig dua tshaj txhim kho peb-band khoom. Muaj ob yog vim li cas:

• ib tug me me npaum li cas ntawm cov khoom - yuav tsum tau tsuas yog ob tug hais lus, ib tug tshaj plaws ntawm ob amplifiers thiab ib lim;
• yooj yim installation - mus sau xws li ib tug system yuav ua tau nws tus kheej, muaj ib tug yooj yim kev txawj ntse nyob rau hauv lub teb ntawm hluav taws xob.

Muaj pes tsawg leeg ntawm lub peb-txoj kev system muaj xws li ib tug sophisticated khoom, tus nqi ntawm uas yog ntau tshaj li tus nqi ntawm cov pa kiag li lawm. Tsis tas li ntawd, Yog hais tias koj txiav txim siab rau nruab xws li hais lus, koj yuav tsum tau nrhiav kev pab los ntawm cov tub txawg - uas tsis muaj tshwj xeeb xab kiag li lawm thiab nyias pob ntseg-mounted system yuav sound tib yam li ob-txoj kev hais lus. Qhov no yog lub ntsiab lus teb rau lo lus nug ntawm kev sib txawv ntawm ob-txoj kev hais lus los ntawm lub peb-txoj kev.