HiFI  antey emti ?
 adhika viswasaniiyata  ( tarachugaa high - fai ledha haifaiki kudinchabadutundi )  dhwani yokka adhika - nanyatha punaruthpatthi .  idi audiophyls mariyu hom audeo autsaahikulatoo prassiddhi chendhindhi .  aadarsavantamgaa ,  adhika viswasaniiya parikaraalu vinabadani shabdam mariyu vakreekarananu kaligi untai mariyu human vinikidi paridhiloo Phek  ( thatastha ,  rangu laeni )  freequency pratispandananu kaligi untai .

 choukaina audeo parikaraalu , AM  rdi ledha  1940 l chivari varku chosen recording ‌ lalo vinagalige naasirakam dhwani punaruthpatthi dwara utpatthi cheyabadina takuva - nanyatha  "lo-fi"  dhwanitho adhika viswasaniiyata vibhedistundi .
 bel laboratories  1930 l praarambhamlo anek takala recording paddhathulatho prayoogaalu cheeyadam praarambhinchindi .  leopold stocovsky mariyu filadelphia arkestra yokka pradharshanalu  1931  mariyu  1932 loo philadelphiyaaloni akaadami af music mariyu newjersealoni bel laab ‌ l Madhya telephony Jalor ‌ lanu upayoginchi rikard cheyabaddaayi .  konni multitrack recording ‌ lu optically souund fillm ‌ pai tayyaru cheyabaddaayi ,  idi pradhaanamgaa  MGM (1937  natiki )  mariyu twantiiat centuury faaks fillm corparetion  (1941  natiki )  dwara kothha puroogathiki dhaaritheesindhi . RCA  wicter  1941 loo optically souund ‌ ni upayoginchi anek archestrala pradharshanalanu rikard cheeyadam praarambhinchaadu ,  falithamgaa  78-rpm  disick ‌ laku adhika - viswasaniiya mister ‌ lu labhinchaaru . 1930 lalo ,  averi fischer ,  ooka autsaahika vayolin vaadyakaarudu ,  audeo design mariyu acoustics ‌ thoo prayoogaalu cheeyadam praarambhinchaadu .  athanu lyv archestranu vintunnatlugaa vinipinche raediyoenu tayyaru cheyalanukunnadu - adi asalau dhwaniki adhika viswasaneeyatanu saadhinchagaladu .  rendava prapancha iddam tarwata ,  hyari epf .  olson ooka prayogaanni nirvahimchaadu ,  deeni dwara test subzect ‌ lu daachina variable acoustic filter dwara lyv archestranu vintayi .  praarambha dhwani parikaraala dwara pravesapettabadina shabdam mariyu vakreekarana tolaginchabadina tarwata ,  shrothalu adhika - viswasaniiya punarutpattini ishtapadataarani phalitaalu rajuvu chesaayi .[citation needed]

1948 loo praarambhinchi ,  anek aavishkaranhalu hom - audeo naanyataloo peddha merugudalalu saadhyamayye paristhithulanu srushtinchaayi :

WWII  tarwata geramny nundi teesukobadina saanketikata aadhaaramga reel - tu - reel audeo tape recording ,  bing crasby vento sangeeta kalaakaarulu merugaina vishwasaneeyathatho recording ‌ lanu tayyaru cheeyadam mariyu pampinhii cheyadamlo sahaayapadindi .
33⅓ rpm  lang play  (LP)  microgroov vinail rikard ,  takuva uparithal shabdam mariyu parimaanaatmakamgaa paerkonna equalisation vakratalatho paatu nwaais - redakshan mariyu dynamic ranje sistom ‌ lu .  audeo maarket ‌ loo opinion leader ‌ luga unna shaastreeya sangeeta abhimaanulu twaraga  LP lanu sweekarincharu ,  endhukante paata recordula maadhirigaa kakunda ,  chaaala shaastreeya rachanalu oche  LP ki saripotayi .
 adhika nanyatha gala tern tables ,  marinta pratispandinche suudulu 
FM  rdi ,  visthrutha audeo Banda ‌ vidt mariyu  AM  rdi kante signal jokyaniki mariyu kshinathaku takuva avaksam Pali .
 merugaina amplifier design ‌ lu ,  freequency pratispandanapai ekuva shradda mariyu adhika pvr avut ‌ putt saamardhyamto ,  grahinchadagina vakreekarana lekunda aadiyoenu punaruthpatthi chesthundu .
 merugaina bass freequency responses ‌ thoo edgar will ‌ chuur mariyu henrii clos abhivruddhi chosen acoustic suspension ‌ thoo sahaa kothha loud ‌ speker design ‌ lu .
1950 lalo ,  audeo tayaaridaarulu nammakamaina dhwani punarutpattini andinchadaaniki uddeeshinchina recordulu mariyu parikaraalanu vivarinchadaaniki adhika viswasaniiyata aney padabandhaanni marcheting padamgaa upayoginchaaru .  chaaala mandhi viniyogadaarulu apati - praamaanika  AM  raediyoelu mariyu  78-rpm  rikard ‌ lato polisthe naanyataloo thaedaanu Merta spashtangaa gurtincharu mariyu  RCA  yokka nyuu arthophonics mariyu landon yokka  FFRR ( porthi freequency ranje recording , UK  sistom )  vento adhika - viswasaniiya phonograph ‌ lu mariyu  33⅓ LP lanu konugolu chesar . .  audiophyls saankethika lakshanaalaku shradda chuupaayi mariyu pratyeka tern tables ,  rdi tunor ‌ lu ,  preeyamplifier ‌ lu ,  pvr amplifier ‌ lu mariyu loud ‌ speker ‌ lu vento vyaktigata bhagalanu konugolu chesaayi .  kontamandi outhsahikulu thama sonta loud speker sistom ‌ lanu kudaa erpaatu cheskunnaru . 1950 lalo intigraeted multy - speker console sistom ‌ l aagamanamtho ,  high - fai anede hom souund equip ‌ ment ‌ ku sadarana padamgaa marindi ,  kontavaraku phonograph mariyu rikard player ‌ lanu sthaanabhramsam chesindi .

1950 l chivaraloo mariyu  1960 l praarambhamlo ,  stereophonic parikaraalu mariyu recording ‌ l abhivruddhi hom - audeo merugudhala yokka tadupari taramgaaniki dhaaritheesindhi mariyu sadarana paribhaashalo sterio high - phaini marchindhi .  rikard ‌ lu ippudu stereolo play cheyabaddaayi .  ayithe ,  audiophile prapanchamloo ,  adhika viswasaniiyata aney Bodh athantha khachitamaina dhwani punaruthpatthi lakshyanni mariyu aa lakshyanni chaerukoovadaaniki andubatulo unna saankethika vanarulanu suchisthundi .  yea kollanni  " high - fai yokka swarnayugam " gaaa pariganistaaru ,  aa samayamlo vacuum tube parikaraala tayaaridaarulu adhunika audiophyls ‌ chee atyuttamamgaa pariganinchabade anek modallanu utpatthi chesar mariyu salid state  ( trancisterized )  parikaraalanu maarket ‌ loki pravesapettadaaniki mundhu ,  tadanamtaram tube ‌ nu marcharu .  pradhaana sravanti saanketikatagaa parikaraalu .

1960 va dasakamlo ,  audeo thayaridarula sahayamtho  FTC  adhika viswasaniiyata kaligina parikaraalanu gurthinchadaaniki ooka nirvachanamtho munduku vacchindi ,  tadwara tayaaridaarulu varu avasaralanu teerchinatlayithe mariyu tappudaari pattinche prakatanalanu tagginchavachhu .

 metal - aaksaid - semiqandaqtar fiield - affect transister  (MOSFET) 1974 loo tohoku vishvavidyaalayanloo juun - ichi nishijava dwara audeo choose pvr  MOSFET gaaa marchabadindhi .  pvr  MOSFET lanu tvaralo  Yamaha  vaari high - fai audeo amplifier ‌ l choose tayyaru chesindi . JVC,  pioneer corparetion ,  Seoni mariyu toshibaalu kudaa  1974 loo pvr  MOSFET lato amplifier ‌ l tayaareeni praarambhinchaayi . 1977 loo ,  hitachi  LDMOS ( lateral defused  MOS),  pvr  MOSFET nu parichayam chesindi . 1977  mariyu  1983  Madhya hitachi Bara  LDMOS  thayaridaru ,  yea samayamlo  LDMOS HH  electronics  (V- siriis )  mariyu ashley audeo vento thayaridarula nundi audeo pvr amplifier ‌ lalo upayoginchabadindi mariyu sangeetam mariyu piblic adrus sistom ‌ l choose upayoginchabadindi .  klaas - di amplifier ‌ lu  1980 l madyalo takuva dara ,  vaegamgaa maare  MOSFET lu andubaatuloki vacchinappudu vijayavantamayyaayi .  anek transister amp ‌ lu vaati pvr section ‌ lalo  MOSFET  parikaraalanu upayogistaayi ,  endhukante vaati vakreekarana vakrarekha marinta tube lagaa umtumdi .

1970 lalo praarambhamiena sangeethaanni punaruthpatthi cheyadanki ooka prasidha rakam vyvasta intigraeted music senter - idi phonograph tern table , AM-FM  rdi tunor ,  tape player ,  preeyamplifier mariyu pvr amplifier ‌ lanu ooka packageelo kalipi ,  tarachugaa dani swantha pratyeka ,  vary cheyagaligina vaatitoe vikrayinchabadindi .  ledha intigraeted speakerlu .  yea vyavasthalu vaati saralatanu prcharam chesaayi .  viniyogadaarudu vyaktigata bhagalanu encukuni ,  assembling cheyavalasina avsaram ledhu ledha impedence mariyu pvr raetimg ‌ l girinchi thelisi vundali .  puristlu saadharanamga yea vyavasthalanu adhika viswasaneeyatagaa suuchinchakundaa untaruu ,  ayithe kondaru chaaala manchi nanyatha gala dhwani punarutpattini kaligi untaruu .

1970 lu mariyu  1980 lalo audiophyls prathi bhaganni vidividiga konugolu cheyadanki praadhaanyatanichaayi .  aa vidhamgaa ,  varu korukunna specification ‌ lato prathi bhaagam yokka namunalanu enchukovachhu . 1980 va dasakamlo ,  anek audiophile magagin ‌ lu andubaatuloki vacchai ,  speker ‌ lu ,  amplifier ‌ lu mariyu itara bhagalanu elaa enchukovali mariyu pareekshinchaali aney dhaanipai bhaagaalu mariyu kadhanaala sameekshalanu andinchayi .

 sravana parikshalu 
 ivi kudaa chudandi :  codec leasoning test 
 high - fai tayaaridaarulu ,  audiophile magagin ‌ lu mariyu audeo enginerring parisodhakulu mariyu saastravettalache vinadam parikshalu upayoginchabadataayi .  ooka bhaagam ledha recording yokka dhwani nanyathanu anchana vese shrotha pariiksha choose upayoegimchae bhagalanu chudagalige vidhamgaa sravana pariiksha jarigithe  ( udaa .,  adae sangeeta bhaganni tube pvr amplifier dwara vinnaaru mariyu salid - state amplifier ),  appudu konni bhaagaalu ledha barand ‌ l patla ledha vyatirekamga shrotha yokka mundhuga unna pakshapaataalu vaari therpunu prabhaavitam chese avaksam Pali .  yea samasyaku pratispandinchadaaniki ,  parisodhakulu amdha parikshalanu upayoginchadam praarambhinchaaru ,  dheenilo shrothalu pareekshinchabadutunna bhagalanu chudaleru .  yea parikshalo saadharanamga upayoegimchae vaividhyam  ABX  pariiksha .  motham muudu namunala choose ooka wasn telisina remdu namuunaalatoe  ( namoonaa  A,  suuchana mariyu namoonaa  B,  pratyaamnaayam )  mariyu ooka teliyanu namoonaa  X thoo pradarsinchabadutundi . X  yadruchikamga  A  mariyu  B  nundi empika cheyabadindhi ,  mariyu wasn  X ni  A  ledha  B  gaaa gurtistundi .  ooka nirdishta padhathi paaradarshakangaa undani niroopinchadaaniki margam lenappatiki ,  sariggaa nirvahinchabadina double blinded pariiksha paddathi paaradarshakangaa ledani rajuvu chesthundu . .

 konni audeo bhaagaalu  ( khareedaina ,  anyadesa cables vantivi )  dhwani naanhyatapai edaina aatmaasrayamgaa grahinchadagina prabhavanni kaligi unnaayo ledo nirdharinche prayatnaalalo bhaagamgaa konnisarlu blinded parikshalu upayoginchabadataayi .  yea blinded test ‌ l nundi saekarinchina deetaanu stereophyl mariyu dhi absolute souund vento konni audiophile magagin ‌ lu audeo parikaraala muulyaankanaalloo angeekarinchavu .  stereophyl yokka pratuta editer ayina jeanne atkinson ,  blinded test ‌ l phalithaalanu chusina tarwata  1978 loo kuad  405  aney salid - state amplifier ‌ nu okasari konugolu chesanani ,  ayithe nelala tarwata athanu dhaanini bhartee chese varku  " maayaajaalam poindhi "  ani telsukunnadu .  ooka tube  amp  thoo .  dhi absolute souund yokka raabart harley  2008 loo ila vraasaadu : "... blinded leasoning test ‌ lu prathamikangaa sravana prakriyanu vakreekaristaayi mariyu nirdishta drugvishayam yokka vinikidini nirnayinchadamlo panikiraanivi ."

 aan ‌ Jalor souund ‌ stages nett ‌ varey editer doug schneider  2009 loo remdu sampaadakeeyaalatoo yea sthaanaanni khandincharu .  athanu ila perkonnaadu : " kanada naeshanal reesearch consul  (NRC) loo loud speker design ‌ pai dasaabdaala viluvaina parisoedhanaloo amdha parikshalu pradhaanamienavi . NRC  parisoedhakulaku vaari phalitham shaastreeya samaakamloe viswasaniiyamgaa undataniki mariyu athantha ardhavantamaina phalithaalanu pomdadaaniki ,  varu pakshapaataanni tolaginchaalani mariyu amdha pariiksha Bara margamani thelusu ." Axiom, Energy, Mirage, Paradigm, PSB  mariyu  Revel  vento anek kenadiyan companylu thama loud ‌ speker ‌ lanu roopondhinchadamloo blinded testing ‌ nu vistrutamgaa upayogistunnaai .  harman internationale yokka audeo professionally dr hsien aalive yea abhipraayaanni panchukunnaaru .