Yuav Ua Li Cas Xaiv Chav Kawm Sib Tham Audio
Ⅰ.Core tseev kom muaj rau lub rooj sib tham lub rooj sib tham audio
1. Lub suab siab siab thiab kev pab them nqi
Lub rooj sib tham chav audio yuav tsum muaj tseeb suab thoob plaws hauv tag nrho chav. Raws li cov qauv hluav taws xob thoob ntiaj teb (IEC), lub sijhawm zoo nkauj (20-100 square}} {}} Yog tias yuav tsum muaj tej thaj chaw deb, ntxiv 10% hluav taws xob npoo yuav tsum tau offset network sib kis los.
2. Cov lus teb thiab hais lus meej
Lub suab band (200zz {{4 4}} 4kHz) yuav tsum tau ua kom zoo dua qub, nrog rau cov lus pom zoo kom pom zoo ntawm 80Hz-16kHz (rau cov neeg hais lus puv ntoob). Txav deb ntawm cov ntses basse uas tau tshwm sim hauv av nkos, thiab tsis muaj txiaj ntsig ntau zaus uas cuam tshuam rau kev nthuav dav. Raws li "GB / T 4959-2011 txoj kev rau kev ntsuas cov cim suab hauv tsev hauv tsev," Tus nqi STI rau kev hais lus tau ntse dua lossis sib npaug 0.6.
3. Anti -} lowling peev xwm
Siv cov neeg hais lus nrog cov yam ntxwv muaj zog (xws li daim qauv cardioid polar) thiab lub tswv yim suppressor. Qhov kev ncua deb ntawm lub microphone thiab tus neeg hais lus yuav tsum muaj ntau dua li 1.5 meters kom tiv thaiv cov tswv yim acoustic.
Ii. Li cas los xaiv txoj caiChav Sib Tham audio
1. Phim cov khoom siv rau chav me
Tsis pub dhau 20 M2: Xaiv 2-4 30 w ntsa {}} Mount hais lus nrog ntau dua lossis sib npaug rau 90 degree.
② 20-50 m2: Xaiv 4-6 50}} {{{{}}}} w qhov tseem hais ua ke sau cov neeg hais lus.
③ Tshaj 50 M2: Tawm Sharear Array hais lus nrog lub zog ntawm ntau dua lossis sib luag rau 200W rau ib tus neeg hais digital, raug nquahu.
2. Yuav Tsum Tau Ua Haujlwm
①basic kev sib tham: ib lub microphone ib qho yooj yim thiab ib qho yooj yim tov yog qhov txaus.
② Multimedia conferencing: Yuav tsum muaj kev txhawb nqa rau HDMI / Bluetooth tswv yim thiab cov sijhawm txuas ntxiv teb ntawm 20Hz-20kHz.
③ Kev Sib Ntsib Thaj Chaw: Yuav tsum muaj xws li Acoustic Echo tshem tawm (AEC) thiab latency tsawg dua lossis sib luag rau 50ms.
3. Txhim kho thiab commissioning cov ntsiab lus tseem ceeb
Tam sim no hais lus qhov siab yog 2-2.5 meters, nrog rau 10-15℃qaij lub kaum rau hauv cheeb tsam tiv thaiv.
②use tus ntsuas acoustic (xws li RHW software) kom ntsuas calibrate cov lus qhia txog kev ua yuam kev, ua kom yuam kev li ntawm ± 3dB.