Jagora a ƙimar belun kunne mara waya: Sony WH-1000XM2
Roskachestvo tare da Majalisar Dinkin Duniya na Ƙungiyoyin Gwajin Masu Amfani (ICRT) bincike na nau'ikan belun kunne daban-daban daga nau'ikan farashi daban-daban. Dangane da sakamakon binciken, an ƙididdige ƙimar mafi kyawun na'urorin da ake samu ga masu siye na Rasha.
Gabaɗaya, ƙwararru sun yi nazarin nau'i-nau'i 93 na waya da nau'ikan belun kunne na 84 daga nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan kayan aikin da aka gwada ba a gwada su ba. An gwada duk samfuran akan irin waɗannan sigogi kamar ingancin tsarin watsa siginar sauti, ƙarfin belun kunne, ayyuka, ingancin sauti da sauƙin amfani.
An gudanar da gwajin da kanta a cikin babban dakin gwaje-gwaje na duniya wanda ke aiki bisa ga ka'idar ISO 19025 (ma'aunin inganci wanda Kungiyar Kula da Ma'auni ta Duniya ta ɗauka).
An yi amfani da kayan aiki na musamman don kimanta sigogi kamar ingancin tsarin watsa siginar sauti, ƙarfin belun kunne da ayyukansu. Masana sun gwada ingancin sauti da dacewa da na'urar. Fasaha ba ta da ikon irin wannan kima.
Yana da ban sha'awa cewa wasu masana'antun na belun kunne ba masu sana'a ba suna nuna nau'i-nau'i masu yawa na sake sakewa, wanda, da farko, ba koyaushe yana da ma'ana ba, kuma na biyu, sau da yawa ba gaskiya ba ne.
“An ƙirƙira jin ɗan adam ta hanyar da zai iya jin sautuna tare da mitar kusan 20 zuwa 20000 Hz. Duk abin da ke ƙasa da 20Hz (infrasound) da duk abin da ke sama da 20000Hz (ultrasound) ba a gane shi ta hanyar kunnen ɗan adam. Saboda haka, ba a bayyana sosai ba lokacin da masu sana'a na gida (marasa sana'a) belun kunne ya rubuta a cikin bayanin fasaha cewa suna haifar da mitoci a cikin kewayon 10 - 30000Hz. Wataƙila yana ƙidaya akan masu siye ba kawai na asalin duniya ba. A hakikanin gaskiya, sau da yawa yana nuna cewa halayen da aka bayyana suna da nisa sosai daga ainihin, "in ji Daniil Meerson, babban injiniyan sauti na gidan rediyon "Moscow Speaks".
Ya kuma yi imanin cewa lokacin zabar belun kunne kana buƙatar bincika ingancin sautin kiɗan da kuka fi so a cikin wani samfuri. Gaskiyar ita ce, wasu mutane suna son bass, yayin da wasu, akasin haka, ba sa son su. Zaɓuɓɓuka koyaushe suna da ɗaiɗaikun ɗaiɗaiku; sautin a cikin belun kunne iri ɗaya ana fahimtar su daban ta mutane daban-daban.
An gayyaci masu ƙirƙira kiɗa, ƴan wasan kwaikwayo, da malaman kiɗa a matsayin ƙwararru. Duk baƙi na shekaru daban-daban kuma suna da zaɓin kiɗa daban-daban. An gudanar da gwaje-gwajen ta hanyar sauraron kiɗan kiɗa guda bakwai a cikin kowane belun kunne guda biyu: na gargajiya, jazz, pop, rock, kiɗan lantarki, da kuma magana da amo mai ruwan hoda (yawan yanayin irin wannan siginar ya yi daidai da mitar, ana iya gano shi, alal misali, a cikin bugun zuciya, a kusan kowane na'urorin lantarki, da kuma a yawancin nau'o'in kiɗa).
Dangane da gwajin halaye daban-daban, don tantance ingancin watsa sauti, an yi amfani da na'ura ta musamman don auna halayen girman-mita da hankali a cikin na'urorin lantarki, audiometry da sauran makamantan su. Ana kiran wannan na'urar sau da yawa kunnen wucin gadi. Tare da taimakonsa, ƙwararrun suna tantance matakin ƙyallen sautin murya. Wannan mai nuna alama yana taimakawa fahimtar ko na'urar tana "riƙe" sauti da kyau. Misali, idan akwai ɗigo mai girma, kiɗan da aka kunna a cikin belun kunne za su iya ji ta wasu, tare da bass ɗin yana gurbatawa.
Kuma irin wannan ma'auni a matsayin aiki ya haɗa da bincika sauƙin amfani - misali, ko belun kunne suna da sauƙin ninkawa, yadda sauƙi ko wahala yake tantance inda belun kunne yake na kunnen hagu da kuma inda dama, ko murfin ko an haɗa harka a cikin fakitin, ko belun kunne suna da ginanniyar maɓallan don karɓar kira da sarrafa sake kunna kiɗan, da sauransu.
Wani muhimmin ma'auni shine amincin amfani da belun kunne. A sa'i daya kuma, masana sun yi gargadin cewa adadin mutanen da ke fama da matsalar rashin jin ji a jiki ya karu sosai. Ɗaya daga cikin abubuwan da ke haifar da rashin lafiya shine sauraron kiɗa mai ƙarfi a kan belun kunne.
Da kyau, mahalarta sun gano belun kunne masu waya a matsayin mafi kyawun ingancin sauti
Sennheiser HD 630VB, mara waya - Sony WH-1000XM2, Sennheiser RS175, Sennheiser RS165.
Manyan samfuran mara waya guda 5 waɗanda suka jagoranci jagora a cikin duk alamomin da aka tantance sun haɗa da:
- SonyWH-1000XM2;
- Sony WH-H900N ji akan 2 Wireless NC;
- Sony MDR-100ABN;
- Sennheiser RS 175;
- Mai Rarraba RS165.
Mafi kyawun waya guda uku:
- Sennheiser HD 630VB (mafi girman maki don ingancin sauti);
- Bose SoundSport (ios);
- Sennheiser Urbanite I XL.
Kwararru daga Roskachestvo sun kuma ba da shawarar sauraron kiɗa a kan belun kunne na tsawon sa'o'i uku a rana kuma ba fiye da sa'o'i biyu a jere ba, kuma ba a mafi girman girma ba. In ba haka ba, akwai haɗarin lalacewar kunne da raguwar ji.
source: www.habr.com