
hairi aff. olson

dow. hairi ferdinand olson, ee.ee., ph.dee. (28 disambar, 1901-1 aprail, 1982) ack pramukh engineer aur aar. see. aeye. victor key saath aavishkaarak, aar. see. aeye. prayogshalaon key dhwanik anusandhaan nideshak, printon, aur 20veen shatabdi key dhwanik engineering key kshetra mein agrani they, vishesh roop seey uchch-nishtha, digital sangeet sanshleshan, microphone, loudspeaker, dhwaniki, radar, pandubbi sanchaar, chumbakiya tape aur shore mein kamee key kshetron mein. 
olson ney vidyut-yaantrik-dhwanik sadrishyon parr "gatishil saadrishya" sahit duss pustaken likhin aur unake paas sou seey adhik patent they. 
jeevani.
hairi aff. olson kaa janm mount sukhad, ayova mein swedish apravasi maataa-pitaa key ghar huaa thaa. takniki roop seey cumm umr seey hii, unhone model havaai jahaaj banaae aur udaaya, ack bhaap injan kaa nirmaan kiya aur ack lakadi seey chalane vaale boiler kaa aavishkaar kiya joe 100-volt dc generator chalaata thaa. olson ney ack shaukiya radio transmitter kaa design aur nirmaan kiya, joe ack operator kaa licenses dene key liye paryaapt praveenta praapt curr rhaa thaa. olson ney ayova vishvavidyalaya seey electrical engineering mein snaatak kii degree arjit kii, phir thhos padarthon mein dhwanik tarang filter parr ack thesis key saath master degree arjit karna jaari rakhaa aur paaraa mein anunaad vikiran key dhruvikaran key saath kaam karate hue bhautiki mein doctorate kii upaadhi praapt kii. 
1928 mein adhyayan puuraa karane key turant baad, olson aar. see. aeye. prayogshalaon key liye kaam karane key liye nyu jersey chaley gaye. olson lagbhag chaar dashakon taka rca mein rahega.
olson koo sangeet, dhwaniki aur dhwani prajanan mein nirantar ruchi thee, aur 1934 taka, unhein aar. see. aeye. mein dhwaniki anusandhaan kaa prabhaar diyaa gayaa thaa. aar. see. aeye. mein, olson ney kaee pariyojanaon parr kaam kiya, jisamen prasaran aur chalchitra udyogon key liye microphone vikasit karna, loudspeaker mein sudhaar karna aur chumbakiya tape recording mein mahatvapurna yogdan denaa shamil thaa. 
dwiteeya vishva yuddh peedhi key kaee engineeron kii tarah, olson ney sainya praudyogiki mein bhee mahatvapurna yogdan diyaa, vishesh roop seey paani key neeche dhwani aur pandubbi rodhi yuddh key kshetron mein. 
yuddh key baad olson ney herbert belar key saath milkar pahala aadhunik electronic synthesizer vikasit kiya. electron tubes seey lais, maark II dhwani sanshleshak kaa upayog sangeet kii rachana key liye kiya gayaa thaa, jise record kiya gayaa thaa aur janata koo becha gayaa thaa.
ack vipul aavishkaarak aur engineer, olson koo vibhinn prakaar key microphone (vyaapak roop seey upayog kiye jaane vaale 44-aur 77-shrinkhala sahit), cardioid (dishaatmak) microphone, loudspeaker baffles, air-suspension loudspeaker, isobaric loudspeaker, praarambhik video recording upkaran, audio recording upkaran, phonograph pickup, paani key neeche dhwani upkaran, shore mein kamee, gati-chitron mein dhwani praudyogiki, aur saarvajanik-pataa pranaliyon key liye 100 seey adhik patent seey sammaanit kiya gayaa thaa. unhone 135 lekh aur duss pustaken bhee likhin, jinamen vidyut, dhwanik aur yaantrik pranaliyon key beach gatishil sadrishyon koo chart karane vaalaa ack antahvishay paath bhee shamil haye. 
1949 mein, olson koo audio engineering society key johnn aich key pahale praaptakarta key roop mein sammaanit kiya gayaa thaa. pots memorial award, ack puraskar karyakram jiska naam baad mein swarn padak rakhaa gayaa. olson ney acoustical society off america key adhyaksh key roop mein kaary kiya, jisane unhein 1974 mein engineering acoustics mein pahala rajat padak aur 1981 mein swarn padak seey sammaanit kiya. unhone 1970 mein aaee. ee. ee. ee. laime padak jeetaa, 1959 mein rashtriya vigyaan akadami key liye chune gaye, aur apane jivankal key dauran kaee maanad degree praapt kii.
olson 1967 mein aar. see. aeye. seey sevaanivritt hue aur aar. see. aeye. prayogshalaon key liye salaahkaar key roop mein jaari rahey.
uchch nishtha pradarshan.
dwiteeya vishva yuddh key turant baad, dow. olson ney sangeet key prajanan key liye pasandida bandwidth nirdhaarit karane key liye ack prayog kiya, jise abb ack classic maanaa jaataa haye. pichhale prayogkartaon ney paaya thaa kii shrota punah prastut sangeet key liye 5000 heartz kii uchch aavritti vaale cutoff koo pasand karate hain. dow. olson koo sandeh thaa kii yeh dhwani mein khamiyon key kaaran thaa, vishesh roop seey uchch aavrittiyon mein, jaisa kii usa samay samanya upayog mein upkaran dwara punah prastut kiya gayaa thaa. inn khamiyon mein click aur popp (78 aar. pee. aim. recording seey), atirikt shore (aim. aeye. aim. radio prasaran sthir seey), hiss aur harmonic vikriti (emplifier circuit seey), aur adim loudspeaker designs seey gair raikhik aavritti pratikriya shamil thee. yadi dhwani inn samasyaon seey mukt thee, tou unhone tark kiya, shrota poorna aavritti prajanan koo pasand karenge.
apane prayog mein, unhone ack kamra sthaapit kiya jise ack drishya apaardarshi lekin dhwanik roop seey pardarshi screen dwara tirchhe roop seey vibhajit kiya gayaa thaa. screen mein ack chhupa huaa low-paas dhwanik filter shamil thaa jisamen 5000 heartz kii oopari aavritti cutoff thee. iss filter koo khola yaa bund kiya jaa sakata haye, jisase yaa tou aavrittiyon kii poori seema gujar sakati haye yaa kewal 5000 heartz seey neeche kii seema hoe sakati haye. sabse pahale, ack chhota vaadyayantra screen key ack taraf baith gayaa aur pradarshan kiya, jabaki pareekshan vishayon kaa ack samooh dusare parr baithaa aur sunaa. shrotaon koo dou sharton key beach apani pasand kaa chayan karane key liye kahaa gayaa thaah poorna bandwidth yaa pratibandhit bandwidth. poorna bandwidth key paksh mein bhaari vareeyata thee. isake baad, orchestra koo dhwani-prajanan pranali key saath badal diyaa gayaa, jisake bajaay screen key peechhe loudspeaker lagaae gaye. jaba dhwani pranali vikriti seey mukt thee, tou shrotaon ney poorna bandwidth koo prathamikta dee. lekin jaba unhone chhoti matra mein gair-raikhik viroopan kii shuruat kii, tou vishayon ney ack pratibandhit bandwidth koo prathamikta dee, iss prakaar audio system mein uchch gunavatta key mahatva koo spasht roop seey pradarshit kiya.
iss prayog aur anya logon key kaam key parinamswarup, jaise kii ack machhali pakadane vaalaa aur baad mein adder vilchur, uchch nishtha dhwani recording, sancharan aur prajanan upkaran ney agale dashakon mein nivesh, vikas aur saarvajanik sweekriti mein vriddhi dekhi. microphone seey laker tape recorder, vinail record, emplifier aur loudspeaker taka harr cheej key design aur nirmaan parr prabhaav padaa.
uchch gunavatta vaali aadhunik pee. aeye. pranaliyon parr prabhaav.
ovsale steinly aur danne healey key netritva mein kritagya mrit kii praarambhik dhwani engineering team, jise dhwani kii deewaar (kritagya mrit) key nirmaan parr hairi olson kii 1957 kii pustak "dhwanik engineering" mrit kii "bible" maanaa jaataa haye, pahali paryatan dhwani pranali jisane ack baind koo vaastav mein khud koo sunane aur darshakon koo munch parr baind kyaa suna rhaa thaa, yeh sunane kii anumati dee. baind ney sabhi mrit dhwani dall key liye pustak kii pratiyaan banaain.
dhwani kii deewaar ney jeevant sangeet key liye sabhi aadhunik uchch gunavatta vaale pee. aeye. pranaliyon koo prabhaavit kiya.
vyaktigat jeevan.
hairi aff. olson kaa janm aim. tii. mein huaa thaa. sukhad, ayova, 18 disambar, 1901 koo. way dou bachchon mein seey pahale they. unake maataa-pitaa swedish apravasi they.
olson ney 1935 mein morris, ilinois key lorren johnson seey shaadi kii. unaki maan aur unaki patni donon pratibhashali shaukiya kalakar they-lorren key chitra kaee varshon taka olson key rca karyalaya mein pradarshit kiye gaye they. olson kaa 80 varsh kii ayu mein 1 aprail, 1982 koo nyu jersey key prinston mein printon medical center mein nidhan hoe gayaa.