01 a 07
Oppo Digital PM-1 Kawirikawiri Yankho
Ndinayesa ntchito ya Oppo Digital PM-1 momwe ndimayendera makutu apamwamba pamutu, pogwiritsa ntchito GRAS 43AG khutu / masaya simulator, analyzer ya Clio FW, pulogalamu yamtundu wa TrueRTA yodula lapakompyuta ndi audio ya M-Audio MobilePre USB mawonekedwe a mawonekedwe, ndi kukhulupirika kwamtundu V-Kodi kumutu kozengereza kumutu. Ndinayesa ndondomeko ya makutu a makutu (ERP), pafupi ndi malo omwe pamanja panu mumadutsa pakhomo la khutu lanu pamene mumakakamiza khutu lanu. Palibe malipiro a EQ - mwachitsanzo, munda wa EQ - unagwiritsidwa ntchito. Miyeso yonse inapangidwa ndi zipangizo zopangidwa ndi zikopa zogwiritsidwa ntchito.
Ndondomeko yomwe ili pamwambayi ikuwonetsa machitidwe ambiri a PM-1 kumanzere (buluu) ndi njira zoyenerera (zofiira), ndi mlingo woyesera womwe umatchulidwa pa 94 dB @ 500 Hz. Palibe chikhalidwe cha zomwe zimakhala "zabwino" kawirikawiri yankho pamakutu, koma chiyesochi chimapereka phokoso lolowerera. Manambala ambiri amachititsa chidwi kwambiri pa 3 kHz kapena kuti (omwe akuganiza kuti phokoso lamakutu likufanana ndi la oyankhula mu chipinda chenichenicho), ndipo ichi chimatero, koma 3 kHz nsonga yake ndi yofatsa pafupifupi +6 dB (a ambiri a iwo ali ngati +12 dB). Pali njira ina yofatsa, komanso yopapatiza, yomwe ili pamwamba pa 8.8 kHz.
Kuzindikira kwa PM-1, kuyesedwa pakati pa 300 Hz ndi 3 kHz ndi chizindikiro cha 1 mW chowerengedwa kuti chiwerengero cha 32 ohms impedance ndi 101.6 dB, chomwe chili chokongola kwambiri pamutu wa maginito.
Ngati muli ndi ndemanga kapena mafunso okhudzana ndi miyeso iyi, chonde lembani pamabuku oyambirira okhudza nkhaniyi.
02 a 07
Oppo Digital PM-1 vs. Audeze LCD-X vs. HiFiMan HE-6
Tchatichi chikuwonetsa kayendedwe kamene kamagwiritsidwe ntchito katatu kamene kamakono kakang'ono kamene kamakonzedwa motere: Oppo Digital PM-1 (blue trace), Audeze LCD-X (yofiira) ndi HiFiMan HE-6 (zobiriwira). Miyeso yonseyi imakhala yakufa pakati pa 50 Hz ndi 1.5 kHz. Pamwamba pa izi, PM-1 imagawaniza kusiyana pakati pa LCD-X ndi HE-6, zomwe zikusonyeza kuti zikhoza kukhala mutu wa phokoso lopanda kulowerera.
03 a 07
Oppo Digital PM-1 Kutsekedwa kwafupipafupi, 5 vs. 75 Ohms Sources
Izi zikuwonetsa kuyankha kwafupipafupi kwa PM-1 mu njira yolondola pamene kudyetsedwa mwachindunji ndi Musical Fidelity V-Can amp's 5-ohm kutuluka kwapadera (kufufuza kofiira), ndipo kupumula kwa 70 ohms kumapangidwanso kuti pakhale 75 ohms totalikirapo chosatulutsa (green kufufuza). Chotsatira changwiro pano chidzakhala mizere iwiri yomwe imakhala yowonjezereka, yomwe ingasonyeze kuti kusintha kwa PM-1 kwa tonal sikusintha pamene mutasintha zipangizo zamagetsi. Ndipo monga momwe mukuonera apa, zotsatira za PM-1 pa mayesowa ndizowoneka bwino kwambiri.
04 a 07
Oppo Digital PM-1 Kuwonongeka kwa Maonekedwe
Chiwonetsero cha mapulaneti (waterfall) cholinga cha PM-1, kanjira yolondola. Mtsinje wautali / wobiriwira umawonetsa ziwonetsero, zomwe nthawi zambiri sizili zoyenera. Mafilimu awa samasonyezeratu ma resonances ofunika kwambiri. (Inde, mukuwona kuwonongeka kwakanthawi m'mabasi, koma izi ndi zachilendo.) Tawonani kuti tchati choyambirira chomwe ndinatumiza chikuwonetsa kuwonongeka kwanthawi yonse ya band audio; pa chiyeso choyambirira ndikuganiza kuti ndaiwala kuyika zinthu zowonongeka pamasom'pamaso a PM-1, omwe ndimakonda kuchita ndi makompyuta otseguka kuti mawu awo asabwererenso mu labata yanga.
05 a 07
Oppo Digital PM-1 Kusiyanitsa vs. Mafupipafupi pa 100 dBA
Kusiyana kwa harmonic (THD) ya PM-1, njira yotsalira, yomwe imayeza pa 100 dBA (trace orange) ndi 90 dBA (zobiriwira). Chimene mukufuna kuwona pano ndi mzere womwe umatsika kwambiri pa tchati. PM-1 ilibe kupotoza kwapafupi komwe kumawoneka m'mafoni apamwamba a Audeze, koma PM-1 imasonyeza kusokonezeka kokha mu gulu lochepa kwambiri pakati pa 220 ndi 300 Hz, likukwera kufika pa 6 peresenti pa 100 dBA ndi 2 peresenti pa 90 dBA.
Ndinawona ndemanga ndi malingaliro onena za chiyeso ichi pa maofolomu a pa intaneti, ndipo ndikufuna kutsimikizira zinthu zochepa zomwe zifunikira kuti mumvetsetse chiyeso ichi - zomwe, monga zowerengeka zambiri, zimakhala zovuta kufotokoza molakwika.
Choyamba, 100 dBA ndikumvetsera mokweza kwambiri. Ndimasankha kuti ndiyeso yanga yoyezetsa osati chifukwa chakuti ndikumvetsera mwatcheru, koma chifukwa ndiyeso yomwe matepi ena amatha kubala popanda kupotoza ndipo ena sangathe. Ndinkakonda kuyeza foni yam'manja pamunsi koma ndinazindikira kuti pamakhala omvetsera mwachibadwa, kusokonezeka sikungakhaleko kulikonse.
Chachiwiri, pamene ndinatha kuyeza zojambula zamtundu uliwonse ndikuyerekezera zotsatira za chiyeso ndi zozizwitsa za omvera omwe ndimamvetsera nawo, ndinaphunzira kuchuluka kwake ndi kusiyana kotani kumene kunamveka mosavuta. Muyeso yanga (174 headphones mpaka lero), ndapeza kuti omvetsera amavomereza kuti kupotoza kumva kumangokhala koopsa kwambiri, monga ma telefoni omwe amapita ku 10 peresenti kapena apamwamba kuposa a THD.
Chachitatu, ife tidakali pachiyambi chakumvetsetsa kwa kayendedwe ka zopotoka kwa transducers za audio. Ndikuganiza kuti makampaniwa achita bwino ndi njira za CEA-2010 zomwe zimapangidwira / kupotoza , koma mopanda pake, miyeso yolakwika ya transducers ya voliyumu sichitika kawirikawiri. Timachita ndi matelofoni chifukwa zimakhala zophweka kudzipatula pamatope a phokoso; ndi oyankhula, omwe angafune chipinda cha anechoic. Koma chifukwa choti timayesa sizitanthauza kuti timamvetsa bwino zomwe zimawathandiza.
Chachinai, ndikudziwa anthu ambiri omwe amachititsa mitu ya kumutu, ndipo onse omwe ndikudziwa sakukayikira kuti afotokoze zenizeni pazochitika zawo. (Monga momwe anthu onse amachitira sayansi ayenera kukhala.) Miyendo yamutu imakali akadakali; timakhala ndi miyezo yosakwanira komanso yosakwanira, kotero wothandizira aliyense amakakamizidwa kuti azitsatira yekha malingaliro ake ndi njira zake zabwino, ndikukonzekera njira zake zogwiritsira ntchito zida zomwe ali nazo. Kotero ngati simunayambepo chiyero chamakono m'moyo wanu ndipo mukujambula zochitika zosiyanasiyana, zogwira mtima kuchokera ku zida zamakono, mumatsutsa nzeru zanu ndi luso lanu.
06 cha 07
Oppo Digital PM-1 Impedance
Kukula kwa thupi (mdima wandiweyani) ndi gawo (kuwala kofiira) kwa PM-1, kanjira yolondola. Ziri bwino ngati mizere yonseyi ikuwoneka ngati yopanda phokoso chifukwa chakuti mphepo yomwe imakhala yowonongeka pafupipafupi nthawi zonse imakupatsani yankho lokhazikika pamene mutasintha zipangizo zamagetsi. Ndipo ndithudi, PM-1 imakhala yosavuta ngati ma headphones amatha, ndi mpweya wa 32 ohms (mofanana ndi chiwerengero) kudutsa lonse band audio, ndi kusayenerera gawo kusintha kosintha.
07 a 07
Oppo Digital PM-1 Kutulutsidwa
Apa pali malo ofooka a matelo obwereza. Tsambali apa ikuwonetsera kusungulumwa kwa njira yolondola ya PM-1, mwachitsanzo,, kuthetsa phokoso lakunja. Misewu yomwe ili pansipa 75 dB imasonyeza kuchepetsedwa kwa phokoso lakunja - mwachitsanzo, 65 dB pamatanthawuzo amatanthawuza kuchepetsa -10 dB kumvekedwe kwakunja pafupipafupi. Pansi mzera uli pa tchati, ndi bwino. Kusungulumwa kwa PM-1 kuli bwino kwambiri kusiyana ndi kawiri kawiri kamvekedwe kamene kalikonse kamene kakagwiritsidwa ntchito kumbuyo, ngakhale pakadali pano, palibe pafupifupi kudzipatula pafupipafupi 3 kHz.