Ozilandirira Best Home Theatre Ogulidwa pa $ 399 kapena Pang'ono

Ovomerezeka kumalo opita kumudzi amapereka njira yabwino yowonjezeretsa kugwirizanitsa ndi ntchito za masewera anu a zisudzo. Chinthu chachikulu ndi chakuti ngakhale operekera nyumba zamakono zamtengo wapatali tsopano amapereka zinthu ndi khalidwe zomwe zaka zingapo zapitazo zidalamula mitengo yapamwamba kwambiri. M'munsimu muli mndandanda wa omwe ndimakonda kwambiri ndalama zowonetsera zisudzo ($ 399 kapena zosachepera).

Kuti mudziwe zowonjezera zowonjezera maofesi a kunyumba, onaninso mndandanda wa zolemba za Home Theater Receivers - $ 400 mpaka $ 1,299 ndi Akuluakulu a Zinyumba Zanyumba - $ 1,300 ndi Kupita .

Komanso, onani Mndandanda wamakono opita ku Maofesi a Zinyumba zapanyumba pa chilichonse chomwe mukufuna kuchidziwa musanagule imodzi.

ZOYENERA: Kuti mumve tsatanetsatane wokhudzana ndi zomwe zidawoneka zomwe zilipo m'nkhani ino zikutanthawuza zazomwe zikuchitika padziko lapansi, zindikirani nkhani yanga: Kumvetsetsa Zomwe Amplifier Power Output Specifications .

Ngati mukuyang'ana wolandila nyumba yomwe imakhala yotsika mtengo, phukusi pazinthu zambiri zabwino, ndikupereka mawu abwino, onani Onkyo TX-NR575.

Choyamba, NR575 ndi ovomerezeka kwambiri pa Onkyo 7.2 omwe amapereka ma Dolby Atmos ndi DTS: X audio decoding, zomwe zimapangitsa kuti zikhale zozungulira. Kwa non-Dolby Atmos ndi DTS: X zolembedwera, NR575 imaphatikizanso Dolby Surround Upmixer ndi DTS Neural: X processing processing yomwe imapereka molondola / pamwamba pamveka chitsimikizo 2, 5.1, kapena 7.1 magetsi (olankhula).

Pofuna kukhazikitsa wokamba nkhani mosavuta, Onkyo ikuphatikizapo AccuEQ yowonongeka.

Kwa kanema, NR575 imapereka zotsatira 6 za HDMI zomwe zingadutse mavidiyo a 3D, 4K, ndi Wide Colour Gamut, komanso kupereka kanema kwa analog-to-HDMI. NR575 imagwirizananso ndi makanema a HDR omwe ali ndi mavidiyo, omwe angapezeke kudzera mu mafilimu a Ultra HD Blu-ray, kapena kudzera mu mauthenga a 4K / HDR othandizira (kupeza ma CD 4K / HDR). Ndikofunika kuzindikira kuti ngakhale TX-NR575 imaperekanso mavidiyo, zimagwirizanitsa ndi zizindikiro za mavidiyo 480i.

Pogwiritsa ntchito Ethernet kapena Wifi, TX-NR575 ikhoza kukhazikitsanso zochitika za wailesi kudzera pa intaneti (Spotify, TIDAL, Pandora, ndi zina), Apple Airplay, DLNA, ndi Bluetooth. Ndiponso, Google Chromecast kwa Audio ingakhoze kuwonjezeredwa kudzera pa update firmware.

Audio ikhoza kutumizidwa ku zipinda zina mwakuthupi kudzera mu gawo lachikhalidwe cha Zone 2, kapena popanda waya kudzera mu DTS Play-Fi (imafunikanso kusinthidwa kwa firmware).

Kuwonjezera apo, okonda mavidiyo a vinyl angathe kusangalalira monga wolandirayo amaperekanso zopereka zowonjezera, zomwe zimaperekedwa.

Onkyo TX-NR575 ndi yabwino kwa iwo omwe amafunika kutambasula madola awo, koma safuna kuthetsa chinthu chomwe sichipangidwa kapena chokonzekera bwino.

The Yamaha RX-V483 ndi chitsanzo cha kuchuluka kwa malo obweretsera masewera a nyumba pamtengo wokwanira. Ngakhale mtengo wake woperekedwa ndi $ 449.95, ukhoza kupezeka mosavuta mu mtengo wa $ 399.

Cholandira ichi chili ndi mphamvu zisanu zokhazikika (80WPC-yoyeza ndi njira ziwiri zoyendetsedwa) ndi chithunzi cha preamp cha kugwirizana kwa subwoofer yogwiritsidwa ntchito. Dolby TrueHD, DTS-HD Master audio decoding amaperekedwa, komanso AirSurround Xtreme-based Virtual Cinema Front audio processing kwa omvera amene m'malo m'malo onse okamba patsogolo chipinda. Kukonzekera uku kuli bwino kwa iwo omwe ali ndi malo ochepa.

Ndiponso, ntchito ya Yamaha SCENE imalola machitidwe omwe amamvetsera kapena omwe amawoneka bwino. Kuti mumvetsetse bwino, RX-V483 imaperekanso YPAO kukonza mauthenga.

Chinthu china chowunikira ndi Silent Cinema, chomwe chimalola ogwiritsira ntchito kugulira mutu uliwonse wa headphones kapena earphone ndi kumvetsera mafilimu kapena nyimbo ponseponse popanda kusokoneza ena.

The RX-V483 ikhoza kupezanso iTunes ndi matepi ena owonjezera kuchokera ku iPod Touch, iPhone, kapena iPad kupyolera mu Apple AirPlay. Komabe, kuphatikizapo, wolandirayo akhoza kupeza ma wailesi a intaneti, nyimbo zomwe zasungidwa pa makina oyendetsa a USB, ndi ma PC omwe amagwirizanitsidwa ndi makina ovomerezeka a kunyumba. RX-V483 imapereka zonse Ethernet ndi Wi-Fi.

Kuphatikizanso ndi HDMI Audio Return Channel, komanso 3D, 4K, Wakuda Wakuda Gamut, ndi HDR kudutsa, komanso 1080p mpaka 4K upscaling. Pali zigawo zinayi za HDMI ndi zotsatira imodzi.

Kuphatikizira kumtunda wopanda waya, mungathenso kulumikiza pulogalamu yamagetsi ya AV pafoni yamakono yam'manja ndikumayendetsa kukonza, ntchito, ndi kukhutira kwopezeka kuchokera kumeneko.

Bonasi ina yowonjezera ndi kuphatikiza kwa MusicCast ya Yamaha. Pambuyo pojambula MusicCast App, simungangowulutsa nyimbo kuchokera Pandora, Spotify, Deezer, TIDAL, ndi Sirius / XM, koma mukhoza kuyika RX-V483 mu mawonekedwe a nyimbo zamagetsi osagwiritsidwa ntchito pogwiritsa ntchito Music MusicSast-enabled enabled speakers.

Ngati mukukonzekera kugula zokometsera zamakono zam'nyumba zamtengo wapatali zomwe zili ndi zinthu zothandiza, mphamvu, ndi ntchito, RX-V483 ikhoza kukhala tikiti chabe.

Ngati mukufuna mkambitsi wamakono opita ku 7.1- kapena 7.2, koma musaganize kuti muli ndi ndalama zokwanira, ganiziraninso. Sony STR-DH770 ndi zosakwana $ 350!

STR-DH770 imawerengedwa kuti ipereke mphamvu yokwanira chipinda chaching'ono mpaka chapakati. Thandizo la Audio likuphatikizapo Dolby TrueHD / DTS-HD Master audio decode, monga Dolby Prologic II / IIx ndi DTS-ES. Kuti muwonjeze mauthenga oyankhulana bwino, Audio Return Channel imaphatikizidwanso, pamodzi ndi zotsatira ziwiri za subwoofer.

Muli ndi zovuta zowonjezereka kuti muike njira zowansikira (njira 6 ndi 7) kuti zitheke kutsogolo kwa Spika B, Bi-Amp, kapena kukhazikitsidwa kwa msinkhu wam'mbuyo. Komabe, ma 770 alibe Dolby Atmos kapena DTS: X kujambula, kotero kumveka kwazitali kumapangidwira kawirikawiri ndi zovomerezeka zowakomera kunyumba.

Pofuna kukhazikitsa zovuta zokamba ma speaker, STR-DH770 imapereka njira ya Sony's Digital Cinema Auto Calibration (DCAC) yoyimitsa wokhazikika.

Kwa mavidiyo, STR-DH770 ili ndi zotsatira zinayi za HDMI ndi zotsatira imodzi zomwe zimathandiza 3D, HDR, 1080p, ndi 4K kudutsa, koma alibe mavidiyo ena opangira kapena kupititsa patsogolo. Mwina gwero lanu (DVD / Blu-ray Disc Player / Media Streamer / Cable / Satellite bokosi) kapena TV yanu / kanema kanema imayenera kuchita mavidiyo kapena mapulogalamu.

Komabe, bonasi imodzi yowonjezera ndiyo kuikidwa mu Bluetooth (ndi NFC), yomwe imalola kusuntha mwachindunji kuchokera ku mafoni a m'manja ndi mapiritsi. Komabe, kugwirizanitsa kwa Ethernet ndi Wi-Fi sikuphatikizidwa, zomwe zikutanthauza kuti wolandila sangathe kulumikiza mwachindunji zosakaniza zochokera pa intaneti. Koma ngati mwakopera a SongPal App ya Sony pafoni yamakono, kudzera mu Bluetooth mungathe kuyang'anitsa wolandira, komanso kupeza mwayi wosankha ma fayilo omwe mumasunga pafoni yanu

Komanso, ngati muli ndi nyimbo yosungidwa pang'onopang'ono kapena chipangizo china chophatikizira cha USB, mukhoza kuchigwiritsira ku khomo la USB loyang'ana patsogolo.

Woyamba upainiya VSX-832 ndi wolandira malo oyendetsera kunyumba omwe amapereka zambiri kuposa momwe mungayembekezere pa mtengo.

Poyamba, wolandilayu amapanga makonzedwe okwana 5.2-kanjira (80 wpc ndi njira ziwiri zotsatiridwa) ndi Dolby TrueHD, DTS-HD Master audio decoding, ndi zina zothandizira. Komabe, zina zowonjezera ndizowonjezera thandizo la Dolby Atmos ndi DTS: X kujambula nyimbo (zomwe zimapezeka kudzera pazitsulo zowonjezera).

Kwa Dolby Atmos / DTS: X, VSX-832 imapanga njira yatsopano yosankhira makanema 3.1.2-magetsi (njira zitatu za kutsogolo, kanjira ya subwoofer, ndi njira ziwiri zam'mwamba, m'malo mokhala ndi ma channel awiri akumbuyo). Mukhoza kuyendetsa VSX-832 muyeso yachikhalidwe 5.1-channel kapena 3.1.2-channel.

Pofuna kuthandiza popanga makonzedwe a wokamba nkhani, VSX-832 imaperekanso njira yowonetsera MCACC ya Pioneer.

Kuti mutsegulidwe, VSX-832 ili ndi zinthu zinayi za HDMI zomwe zimathandiza 3D, HDR (kuphatikizapo Dolby Vision), 4K kudutsa, komanso 1080p mpaka 4K Upscaling.

Kuthamanga molunjika kuchokera ku zipangizo zovomerezeka ndi kotheka kudzera pa Bluetooth. Apulogalamu ya AirPlay, Chromecast kwa audio (kudzera pa updateware firmware), DTS Play-Fi, komanso mwayi wokhutira kusungidwa pa USB Flash Drive.

Ma bonasi ena ndi Ethernet / LAN ndi Wi-Fi yomwe imamangidwa, yomwe imaloleza kugwiritsa ntchito mauthenga a pa intaneti (vTuner, Pandora) komanso zipangizo zovomerezeka za DLNA (ma seva, ma PC) pa makonde anu.

Ngati mukufuna malo otsika mtengo owonetsera maofesi omwe amapereka zosankha zosankha zokhala ndi olankhula bwino komanso kuphatikizapo njira yatsopano yolumikizira Dolby Atmos / DTS: X audio, yang'anani apa Pioneer VSX-832.

The Yamaha RX-V383 imapereka zambiri pa $ 299.95 mtengo wake, monga amphamvu 5.1-channel amplifier (70 wpc), Dolby TrueHD, ndi DTS-HD Master Audio kukonza kwa Blu-ray Discs. Komanso, makina opangidwa ndi Bluetooth amalumikizana mwachindunji kuchokera ku zipangizo zoyenera, monga mafoni a m'manja, komanso kuthekera kwa wolandirayo kutumiza omvera kwa oyankhula omwe ali ndi Bluetooth kapena matelofoni.

Ntchito ya SCENE imalola makonzedwe okonzedweratu kapena omvera omwe ali okonzedweratu. Chinthu chimodzi chimene ndimakonda makamaka ndi Silent Cinema headphone surround output.

Kuti muthe kukonza zokamba nkhani, RX-V383 ikuphatikizapo dongosolo la YPAO la Yamaha. Pogwiritsira ntchito maikolofoni, wolandirayo amapanga matani oyesera kuti athe kusanthula kuti amve phokoso lochokera kwa okamba anu mu chipinda chapadera.

Kuphatikizansopo pali zinthu zinayi za HDMI ndi zotsatira zomwe, kupatulapo 1080p, 4K, ndi 3D zojambula zowonongeka, zimadutsanso kudutsa ndi HDR (HDR10, Dolby Vision, ndi Hybrid Log Gamma) ndi Wide Color Gamut. Komabe, RX-V383 sipereka zina zowonjezera mavidiyo kapena kukweza.

Ndiponso, ngakhale kuti Bluetooth imaperekedwa, monga tanenera poyamba, RX-V383 siimaphatikizapo kumangidwa kwa intaneti kukwanitsa kufalitsa. Komabe, khomo la USB loyang'ana kutsogolo limalola kusewera kwa mafayilo a nyimbo omwe amawulutsidwa kuchokera kuwunikira yosungidwa.

Ngati mukukonzekera kugula chowunikira choyambirira panyumba ndi zothandiza, mphamvu, ndi ntchito, RX-V383 ikupereka njira yoyenera.

Onkyo TX-SR373 imanyamula zambiri chifukwa chosakhala ndi ndalama zambiri. Kuyambira ndi ntchito zazikulu, TX-SR73 imapanga makina asanu ndi awiri (5.2-channel) omwe amapereka ma Watt 80 pa njira (kuyesedwa ndi njira ziwiri zotsatiridwa), kuphatikizapo Dolby TrueHD / DTS-Master Audio kukonza, komanso Audio Return Channel, 3D , HDR, 1080p, ndi 4K kudutsa (popanda video yowonjezera kukonza kapena kukweza) kupyolera muzinthu zinayi za HDMI ndi zotsatira imodzi. Komanso, kulembedwa kwa 5.2 kumatanthauza kuti TX-SR373 imalola kugwirizanitsa ndi subwoofers awiri.

Ma bonasi ena akuphatikizapo makina a Bluetooth otchedwa Qualcomm-enhanced Bluetooth ndi Aptx Audio, omwe amalola kutsogolo kwachinsinsi kuchokera ku matelefoni ndi mapiritsi ogwirizana, komanso khomo la USB loyang'ana kutsogolo pofuna kupeza mauthenga a nyimbo omwe amasungidwa pawuni.

Kwa ma novices, Onkyo TX373 imapereka gulu loyang'ana kumbuyo lomwe limangopereka zogwirizana koma limaphatikizapo zithunzi zojambula za mitundu yomwe mungagwiritse ntchito pulogalamu iliyonse, komanso chitsanzo chowonetseratu chowonetserako.

Kuwonjezera pamenepo, thandizo lina lothandizira likuphatikizapo Onkyo's AccuEQ speaker calibration system. Ingolani maikrofoni omwe munapatsidwa ndikutsatira malangizo ophweka kuti muike maulendo a wokamba nkhani ndi mfundo zachinyengo.

Pa mtengo wapadera wokwana madola 349, Onkyo TX-SR373 amapereka maziko ofunika omwe mumasowa pokonza masewera olimbitsa nyumba. Ngati muli ndi malire ochepa kapena mukufuna kuti wolandila azikhala ngati chipangizo cha chipinda chachiwiri, TX-SR373 ikhoza kukuthandizani.

Pogwiritsa ntchito ovomerezeka panyumba, apainiya Vesi-VSX-S520 akuchokera ku bokosi lalikulu lachibokosi lokhala ndi makina ojambula, omwe ali ndi mapaundi awiri okha, ndi 8.8-pounds lolemera. Ngakhale kuti ndizochepa, VSX-S520 kwenikweni imaphatikizapo pang'ono.

Kujambula kwachinsinsi kwa mawonekedwe ambiri a Dolby / DTS akuperekedwa. Zokambirana zogwirizana ndi HDMI zonse zomvera ndi mavidiyo (kuphatikizapo 4K ndi HDR kudutsa), komanso zojambula zamagetsi ndi analoji zokhazokha.

Zokambirana zapamwamba zimaperekedwa kuti zigwirizane za oyankhula onse ndi subwoofer yocheperapo, ndi chithunzi cha prewoofer preamp chimaperekedwa kuti zigwirizane ndi subwoofer yogwiritsidwa ntchito. Njira yosakaniza yogwiritsira ntchito subwoofer ndi yosavuta kwambiri.

VSX-S520 imaphatikizapo kugwirizanitsa ma intaneti kudzera pa Ethernet kapena Wi-Fi, kupereka mwayi wopezeka mautumiki angapo owonetsera nyimbo, komanso kulumikiza mafayilo owonetserako maofesi kudzera m'makompyuta ndi USB. Thandizo la AirPlay, Bluetooth, ndi Google Chromecast limaperekedwanso.

Monga zowonjezera, VSX-S520 ingathenso kuyang'aniridwa kudzera pulogalamu yakutali yakutulutsidwa ya apainiya.

Komabe, mofanana ndi momwe VSX-S520 imakhalira, pali malonda omwe ali ndi mtengo wofanana, wam'chimwene ake aakulu. Chitsanzo chimodzi ndi modzichepetsa mphamvu zopangidwa (pafupifupi 50wpc pa kanjira), zomwe ziri zabwino kwa chipinda chaching'ono, koma pang'ono pang'onopang'ono m'chipinda chachikulu.

Ndiponso, ndi kasinthidwe kake ka njira zisanu ndi zisanu ndi zisanu (5.1-channel), kudodometsa kuzungulira maonekedwe ena, monga Dolby Atmos ndi DTS: X, sichiphatikizidwa.

Kuwonjezera apo, pa kanema, mauthenga a HDMI okhawo / mauthenga omwe amaperekedwa amaperekedwa. Ngati muli ndi kanema yakale yomwe imakhala ndi mavidiyo, simungagwiritse ntchito VSX-S520 kuti mugwiritse ntchito mavidiyowo pa TV yanu.

Kwa mtengo wa VSX-S520, omvera ena owonetsera masewerawa amapereka kasinthidwe ka kanema 7.1, mphamvu yowonjezera mphamvu, ndikuphatikizidwa kwa Dolby Atmos ndi DTS: X, koma ngati malo ali oyamba, Pioneer VSX-S520 ndithudi ofunika kuziganizira.

Ngati mukuyang'ana wolandila nyumba yosungirako zisudzo zomwe zikugogomezera zowonjezera, onetsetsani njira ya 5.2 yotchedwa Denon AVR-S530BT, yomwe ili ndi mphamvu yotulutsa mphamvu ya Watts 70 pa njira yomwe ili ndi chipsinjo chochepa kwambiri.

Zina mwazojambula ndi mavidiyo zomwe zilipo ndi Audio Return Channel, 4K, ndi 3D kudutsa. Komabe, mogwirizana ndi chikhalidwe cha wolandira, palibe 1080p kapena 4K video upscaling yoperekedwa.

Kumbali inayi, mawonekedwe a AVR-S530BT a HDMI adasinthidwa kuti agwirizane ndi HDMI 2.0a ndi HDCP 2.2 ndondomeko. Mwa kuyankhula kwina, chithandizo chimaperekedwa kwa 60fps 4K, HDR, ndi zizindikiro zowonjezera mavidiyo otchuka.

Komanso, AVR-S530BT imaphatikizapo kulumikiza kwa USB kuti mupeze nyimbo kuchokera ku iPod / iPhone / iPad kapena USB flash drive, komanso Bluetooth, yomwe imalola nyimbo zomveka kuchokera kumagwiritsidwe ogwiritsidwa ntchito, kuphatikizapo mafoni ambiri ndi mapiritsi. Komabe, ngakhale mutha kuyendetsa nyimbo zomwe zimagwiritsidwa ntchito kuchokera ku matelefoni ndi mapiritsi kudzera pa Bluetooth, 530BT sichimapereka mwayi wolumikiza mauthenga a pa intaneti kapena kusindikiza nyimbo.

Bonasi ina ndikuphatikizidwa ndi Denon HEOS Link. Mbali imeneyi imalola ogwiritsa ntchito kuti agwirizane ndi 530BT mu system ya HEOS opanda ma multiroom audio pulogalamu yamakono.

AVR-S530BT ikhoza kulamulidwa ndi maulendo apadera kudzera pulogalamu yaulere ya ma iOS kapena Android mafoni / mapiritsi.

Vesi-Vesi-532 ya mpainiya sichiphatikizapo mwayi wa pa wailesi ya intaneti kapena ma intaneti / mautumiki okhudzana ndi kusakanikirana, komanso sichikuperekanso chiwerengero cha Dolby Atmos / DTS: X kulembetsa mawu. Koma ngati mukuyang'ana sewero lapanyumba lopanda kunyumba limene limveka bwino ndipo limagula zosakwana $ 300, VSX-532 ikhoza kukhala yokwanira.

VSX-532 imapereka makonzedwe owonetsera mafilimu asanu ndi asanu (5.1-channel) okonzera makanema, ndi mphamvu yotulutsa mphamvu ya 80 wpc (kuyerekezera pogwiritsa ntchito majoni 20 Hz kufika 20 kHz, njira ziwiri zoyendetsedwa, pa 8 ohms, ndi 0,8 peresenti THD; mphamvu yokwanira chipinda chaching'ono kapena chaching'ono) ndipo imapereka Dolby Digital Plus, Dolby TrueHD, ndi DTS-HD Master Audio decoding, komanso njira zowonjezera zomveka.

Palinso ma 3D, 4K, HDR kudutsa kudutsa HDMI. Komabe, pamtengo uwu, simungapeze kanema kukulitsa.

Kuyankhulana kokha kumaphatikizapo kujambula kamodzi kogwiritsa ntchito, digito imodzi ya coaxial, ndi gawo lopatulira la mafilimu a analog stereo. Chowongolera chithunzi cha subwoofer chimaperekedwanso kuti zigwirizane ndi subwoofer yogwiritsidwa ntchito.

Chimodzi chogwirizanitsa china ndi phukusi la USB la magalimoto oyendetsa kapena zipangizo zina zoyendetsera USB.

Chinthu china chodabwitsa ndi kuikidwa kwa Bluetooth, komwe kumathandiza kusuntha mwachindunji kuchokera ku mafoni a m'manja ndi mapiritsi.

Kuti muwoneke bwino, VSX-532 ikuphatikizapo MCACC yowonjezerapo makonzedwe okonza ma speaker (makina oyipa amafunika).

Ngati mukuyang'ana sewero lakumalo kunyumba, onani Sony STR-DH550. Cholandira ichi chikuphatikizapo kasinthidwe ka 5.2-kanema, Dolby TrueHD / DTS-HD Kujambula kwa PCM Audio / Multi-Channel PCM, komanso kuwonjezera audio processing. Zida zinayi za HDMI zonsezi ndi 3D ndi 4K kupitila mozungulira (chimodzimodzi cha HDMI cholowera ndi MHL-chogwirizana ), ndipo zotsatira za HDMI ndizowathandiza Audio Return Channel. STR-DH550 imaperekanso njira yopitilira yomwe imalola kulumikiza zipangizo zogwirizana ndi HDMI ngakhale ngati wolandirayo atha. Bonasi imodzi yowonjezera ndiyikuti imaphatikizapo khomo la USB loyang'ana kutsogolo kuti lipeze zokhudzana ndi magalimoto oyendetsa kapena iPhone, iPod, kapena iPad.

STR-DH550 sichimatha mapeto koma ali ndi zofunikira-kuphatikizapo Sony's Digital Cinema Auto Calibration okonza dongosolo-zomwe zimapangitsa kukhala zabwino kumalo osungirako masewera apanyumba.

Kuulula

Pomwe, olemba athu odziwa odzipereka amadzipereka kuti afufuze ndi kulemba ndemanga zodziimira zokhazokha za zinthu zabwino kwambiri pa moyo wanu ndi banja lanu. Ngati mumakonda zomwe timachita, mutha kuthandizira ife kudzera mndondomeko yosankhidwa, yomwe imatipangira ntchito. Phunzirani zambiri za ndondomeko yathu yobwereza .