
dolby shore-kamee pranali

ack dolby shore-kamee pranali, yaa dolby nr, analogue audio tape recording mein upayog key liye dolby prayogshalaon dwara vikasit shore kamee pranaliyon kii ack shrinkhala mein seey ack haye. pahala 1965 mein recording studio key liye ack peshevar broadband shore cumm karane vaali pranali "dolby aeye" thee, lekin sabse prasiddh "dolby bee" (1968 mein pesh kiya gayaa) haye, joe upabhokta bajar key liye ack sliding baind pranali haye, jisane casset tape parr uchch nishtha koo vyaavhaarik banaane mein madad kii, jisamen apekshaakrit shore tape aakar aur gati kaa upayog kiya gayaa thaa. yeh aaj taka uchch-nishtha vaale stereo tape khilaadiyon aur recorders parr aam haye, halanki dolby ney 2016 taka nae casset deck key liye praudyogiki kaa licenses denaa bund curr diyaa haye. shore cumm karane kii pranaliyon mein seey, "dolby aeye" aur "dolby sr" koo peshevar upayog key liye vikasit kiya gayaa thaa. "dolby bee", "see" aur "aiss" koo upabhokta bajar key liye design kiya gayaa thaa. dolby hx key alawa, sabhi dolby sanskaran companding dwara kaam karate hainh recording key dauran dhwani kii gatishil seema koo sankuchit karna, aur playback key dauran ise vistaarit karna.
upayog karein.
chumbakiya tape parr sanket record karate samay, prishthabhoomi mein cumm star kaa shore hotaa haye joe usaki aavaaz kii tarah lagata haye. iss samasya kaa ack samadhan cumm shore vaale tape kaa upayog karna haye, joe adhik sanket aur cumm shore darj kartaa haye. anya samadhan tape koo adhik gati seey chalaana yaa ack vyaapak tape kaa upayog karna haye. casset tape mool roop seey recording kii suvidha key liye ack bahut hii sankeern tape kaa upayog karke ack sadharan plastic key khol mein 17/8 inch prati sekand (aaee. pee. aiss.) kii bahut dheemi gati seey chalane vaali ack bahut hii sankeern tape kaa upayog karke nishtha kaa vyaapaar karane key liye design kiye gaye they, jaba 15 aaee. pee. aiss. yaa 71/2 aaee. pee. aiss. tape kii gati uchch nishtha key liye thee, aur 33/4 aaee. pee. aiss. cumm nishtha kii thee. unake sankeern track aur dheemi gati key parinamswarup, casset tape koo ack bahut hii gambhir samasya banaate hain.
dolby shore mein kamee recording key dauran niyojit gatishil poorv-jore kaa ack roop haye, saath hii playback key dauran upayog kiye jaane vaale gatishil dee-jore kaa ack roop haye, joe sanket-seey-shore anupaat mein sudhaar key liye milkar kaam kartaa haye. signal-too-noise anupaat buss yeh haye kii sangeet signal binaa signal key tape shore key nimn star kii tulanaa mein kitna badaa haye. jaba sangeet zor seey hotaa haye, tou usaki nimn prishthabhoomi kaa star dhyaan dene yogya naheen hotaa haye, lekin jaba sangeet naram yaa maun hotaa haye, tou joe kuchh bhee sunaa jaa sakata haye vaha shore hotaa haye. yadi recording star koo samaayojit kiya jaataa haye taaki sangeet hamesha jore seey hoe, tou nimn-star kaa shore sunai naheen dega.
iss lakshya koo praapt karane key liye recording kii matra koo kewal badhaaya naheen jaa sakata haye; tape mein adhikatam matra hoti haye jise way record curr sakate hain, isaliye pahale seey hii tej aavaajen vikrit hoe jaayengi. vichaar kewal taba recording kii matra koo badhaana haye jaba mool samagri pahale seey hii jore seey naheen haye, aur phir playback parr usee matra seey matra koo cumm karein taaki sanket mool matra key star parr laut aae. jaba playback parr volume cumm hoe jaataa haye, tou shore kaa star utani hii cumm hoe jaataa haye. yeh mool avadharana, antarnihit shore koo abhibhoot karane key liye matra koo badhaati haye, jise poorv-jore key roop mein jaanaa jaataa haye, aur kaee utpaadon mein paaya jaataa haye.
iss buniyaadi avadharana key sheersh parr, dolby shore mein kamee pranali ack aur sudhaar jodati haye. yeh iss tathya koo dhyaan mein rakhta haye kii tape kaa shore kaafee hudd taka 1,000 heartz seey adhik aavrittiyon parr sunaa jaataa haye. yeh cumm aavritti vaali aavaazen hain joe aksar jore seey hoti hain, jaise drum beats, isaliye kewal kuchh aavrittiyon parr companding lagu karke, mool sanket key viroopan kii kull matra koo cumm kiya jaa sakata haye aur kewal samasyagrast aavrittiyon parr dhyaan kendrit kiya jaa sakata haye. vibhinn dolby utpaadon mein antar kaafee hudd taka aavrittiyon key sateek sett mein spasht hain joe way upayog karate hain aur mool sanket matra key sanshodhan kii matra joe pratyek aavritti baind parr lagu hoti haye.
pratyek baind key bheetar, poorv-jore kii matra mool sanket matra parr nirbhar karati haye. udaaharan key liye, dolby bee mein, ack nimn-stariya sanket koo 10 dee. bee. seey badhaaya jaayega, jabaki "dolby star", + 3 vee. yuu. parr sanketon koo koee sanket sanshodhan praapt naheen hoga. donon seemaon key beach, poorv-jore kaa ack alag star lagu kiya jaataa haye. playback parr, vipareet prakriya 1 khjd seey oopar key saapeksh sanket ghatak key aadhar parr lagu kii jaati haye (dee-amphace). iss prakaar jaise-jaise sanket kaa yeh hissa ayam mein cumm hotaa jaataa haye, uchch aavrittiyaan uttarottar teji seey ksheen hoti jaati hain, joe tape parr nirantar prishthabhoomi shore key star koo bhee cumm karati haye jaba aur kahaan yeh sabse adhik dhyaan dene yogya hoga.
jahan taka vaastavik abhilikhit karyakram samagri kaa sambandh haye, donon prakriyaon (poorv aur dee-jore) kaa uddeshya ack dusare koo radd karna haye. playback key dauran, aaney vaale off-tape signal aur shore parr kewal dee-amphace lagaaya jaataa haye. playback dee-amphasis puuraa honey key baad, output signal mein spasht shore cumm hoe jaataa haye, aur iss prakriya seey shrota koo cumm prishthabhoomi shore key alawa koee anya prabhaav naheen dikhana chaahiye. haalaanki, binaa shore cumm kiye playback ack ullekhaniya roop seey ujjwal dhwani paida kartaa haye.
mool karyakram samagri key vishvasaniya prajanan koo sunishchit karane key liye recording aur playback circuitry kaa sahee anshankan mahatvapurna haye. kharaab gunavatta vaale tape, gandi yaa galat tareeke seey sanrekhit recording/playback haid, yaa tape nirmaan key liye anuchit purvagrah star/aavritti kaa upayog karane key saath-saath recording yaa duplicate karate samay tape kii gati seey anshankan aasaani seey pareshan hoe sakata haye. yeh khud koo muffled-sounding playback key roop mein prakat curr sakata haye, yaa shore key star kii "saans" key roop mein sanket kaa aayatan star bhinn hotaa haye.
kuchh uchch-stariya upabhokta upkaranon parr, ack dolby anshankan niyantran shamil haye. recording key liye, ack anya parivahan parr sateek playback star anshankan key liye dolby star parr ack sandarbh swar record kiya jaa sakata haye. playback parr, usee record kiye gaye swar koo samaan output kaa utpaadan karna chaahiye, jaisa kii ack dolby logo dwara sanket diyaa gayaa haye joe lagbhag + 3 vu parr vu meater (oun) parr chihnit haye. upabhokta upkaran mein, dolby star koo 200 aine. doubleu. bee./aim. key roop mein paribhaashit kiya gayaa haye, aur sahee star setting key kaary mein sahaayata key liye anshankan tape upalabdh they. 3-haid tape deck parr recording key dauran sateek off-dha-tape nigrani key liye, donon prakriyaon koo ack baar mein niyojit kiya jaanaa chaahiye, aur ise puuraa karane key liye pradaan kii gaee paripath koo rubic "double dolby" key tahat vipanan kiya jaataa haye.
dolby aeye.
dolby aeye-type shore mein kamee, dolby company kii pahali shore cumm karane vaali pranali thee, jise 1965 mein prastut kiya gayaa thaa. yeh peshevar recording studio mein upayog key liye thaa, jahaan yeh aam hoe gayaa, usee samay vyaapak sweekriti praapt curr rhaa thaa jaba multitrack recording maanak bunn gaee. input sanket koo 12 dee. bee. prati saptak dhalanon key saath chaar filters dwara aavritti baindon mein vibhajit kiya jaataa haye, jisamen cutoff aavrittiyaan (3 dee. bee. neeche key bindu) nimnanusar hainh 80 heartz parr cumm-paas; 80 heartz seey 3 khartz taka baind-paas; 3 heartz seey ack uchch-paas; aur 9 heartz parr ack aur uchch-paas. (dou uchch-paas baindon seey yogdan kaa dher oopari aavrittiyon mein adhik shore mein kamee kii anumati detaa haye.) compander paripath mein −40db kii seema hoti haye, jisamen 10db key sampeedan/vistaar key liye 2:1 kaa anupaat hotaa haye. ray dolby dwara likhe gaye aur audio engineering society (octuber 1967) aur audio (juuna/julaai 1968) dwara prakaashit lekhon key anusaar, yeh shore mein kamee key liye lagbhag 10 dee. bee. pradaan kartaa haye, joe 15 kilohertz parr sambhaavit 15 dee. bee. taka badh jaataa haye.
dolby bee-prakaar pranali key saath, sampeedan aur vistaar prakriyaon kaa sahee milan mahatvapurna haye. chumbakiya tape key liye vistaar (decoding) ikai kaa anshankan 185 aine. doubleu. bee./aim. key fluxes star kaa upayog kartaa haye, joe kii udyog anshankan tepon parr upayog kiya jaane vaalaa star haye jaise kii empex seey; yeh tape recorder playback parr 0 vee. yuu. aur shore cumm karane vaali ikai parr dolby star parr sett kiya jaataa haye. record (sampeedan yaa encoding) mode mein, shore cumm karane vaali ikai key ander utpann ack vishisht swar (dolby tone) tape recorder parr 0 vu aur tape parr 185 nwb/aim parr sett kiya jaataa haye.
dolby aeye-type pranali ney bhee chalchitron key liye optical dhwani mein shore mein kamee kii vidhi key roop mein kuchh upayog dekhaa.
dolby bee.
dolby bee-prakaar key shore mein kamee koo dolby aeye key baad vikasit kiya gayaa thaa, aur ise 1968 mein pesh kiya gayaa thaa. isamen ack ekal sliding baind pranali shamil thee joe mukhya roop seey casset tape key saath upayog key liye lagbhag 9 db shore mein kamee (aeye-bhaarit) pradaan karati thee. yeh dolby aeye kii tulanaa mein bahut saral thaa aur isaliye upabhokta utpaadon mein lagu karna bahut cumm kharchila thaa. dolby bee recording taba sweekarya hoti haye jaba una upkaranon parr vaapas chalaaya jaataa haye jinamen dolby bee decoder naheen hotaa haye, jaise kii kaee saste portable aur kaar casset khilaadi. decoder key dee-amphace prabhaav key binaa, dhwani koo adhik chamkile key roop mein maanaa jaayega kyonki uchch aavrittiyon parr jore diyaa jaataa haye, jiska upayog saste upkaran mein "neeras" uchch aavritti pratikriya koo offset karane key liye kiya jaa sakata haye. haalaanki, dolby bee, aam taur parr 3 dee. bee. seey adhik key kaarak dwara, dolby aeye kii tulanaa mein cumm prabhaavi shore kamee pradaan kartaa haye.
dolby bee pranali lagbhag 1 kilohertz seey oopar kii or prabhaavi haye; shore mein kamee joe pradaan kii jaati haye vaha 600 heartz parr 3 db, 1.2 kilohertz parr 6 db, 2.4 kilohertz parr 8 db aur 5 kilohertz parr 10 db haye. shore mein kamee karane vaale baind kii chaudaai parivartansheel haye, kyonki ise sanket key ayam aur aavritti vitaran donon key liye uttardaayi honey key liye design kiya gayaa haye. iss prakaar sanket ("shwas") dwara shore key shravya modulan kaa kaaran baney binaa kaafee cumm aavrittiyon taka shore mein kamee kii mahatvapurna matra praapt karna sambhav haye.
1970 key dashak key madhya seey, dolby bee vyaavsaayik roop seey poorv-record kiye gaye sangeet casset parr maanak bunn gayaa, bhale hii kuchh nimn-anta upkaranon mein decoding paripath kii kamee thee, halanki yeh aise upkaranon parr sweekarya playback kii anumati detaa haye. adhikansh poorv-record kiye gaye casset iss sanskaran kaa upayog karate hain. vhs video recorder raikhik stereo audio track parr dolby bee kaa upayog karate hain.
baad key upabhokta sanskaranon (dolby see pahala honah) kii shuruat seey pahale, dolby bee kaa samarthan karane vaale casset hardware aur isake saath kootbaddh casset koo kewal "dolby system", "dolby nr", yaa dolby prateek key saath shabdaheen roop seey label kiya jaayega. yeh kuchh record label aur hardware nirmaataon mein dalby see kii shuruat key baad bhee jaari rhaa, usa avadhi key dauran jaba nayaa maanak apekshaakrit cumm gyaat thaa.
jey. vee. see. kii pranali, jiska upayog pahale key jey. vee. see. casset deck parr dolby bee key sthaan parr kiya jaataa thaa, koo dolby bee key saath sangat maanaa jaataa haye. jey. vee. see. ney antatah aadhikarik dolby bee samarthan key paksh mein aeye. aine. aar. aiss. maanak koo chhod diyaa; kuchh jey. vee. see. deck maujood hain jinake shore-kamee toggle mein ack sanyukt "aeye. aine. aar. aiss./dolby bee" setting hoti haye.
dolby fm.
1970 key dashak kii shuruat mein, kuchh logon koo fm radio prasaran mein samanya honey kii ummeed thee aur kuchh tunor aur emplifiers koo decoding circuit key saath nirmit kiya gayaa thaa; kuchh tape recorder bhee they joe ack dolby bee "paas-thru" mode key saath they. 1971 mein doubleu. aff. aim. tii. ney dolby aine. aar. key saath karyakramon koo prasaarit karna shuru kiya, aur jald hii kuchh 17 station shore mein kamee key saath prasaarit hue, lekin 1974 taka yeh pahale seey hii girawat parr thaa. dolby fm dolby bee parr adharit thaa, lekin shore koo cumm karane key liye ack sanshodhit 25 microne poorv-jore samay sthiraank aur aavritti-chayanaatmak sanyojan vyavastha kaa upayog kiya gayaa.
hyee comm fm naamak ack samaan pranali kaa mulyankan julaai 1979 aur disambar 1981 key beach germany mein aaee. aar. tii. dwara kiya gayaa thaa, aur 1984 taka ise feeled-trial kiya gayaa thaa. yeh telefuncan hyee comm broadband compander pranali parr adharit thaa, lekin aff. aim. prasaran mein kabhi bhee vyaavsaayik roop seey pesh naheen kiya gayaa thaa. ack anya pratispardhi pranali aff. aim. aiks. thee, joe see. aiks. parr adharit thee.
aar. aim. aiss.
ack poori tarah seey dolby bee-sangat compander vikasit kiya gayaa thaa aur 1980 key dashak mein poorv german loktaantrik ganarajya mein kaee tape recorder parr upayog kiya gayaa thaa. ise aar. aim. aiss. kahaa jaataa thaa (angreji seh "shore cumm karane kii pranali").
dolby see.
dolby see-type shore mein kamee 1980 mein pesh kii gaee thee. yeh 2 kilohertz seey 8 kilohertz kshetra mein lagbhag 15 dee. bee. shore mein kamee (aeye-waited) pradaan kartaa haye jahaan kaana atyadhik samvedansheel hotaa haye aur adhikansh tape uska kendrit hotaa haye. iska nirmaan dou dolby bee pranaliyon key prabhaav koo ack saath milakar kiya jaataa haye-ack uchch-stariya charan aur ack nimn-stariya charan-cumm aavrittiyon key vistaar key saath. jaise kii dolby bee mein, ack "sliding baind" takneek (sanchaalan aavritti sanket star key saath bhinn hoti haye) avaanchhaniya "saans" koo dabaane mein madad karati haye joe aksar kaee anya shore cumm karane kii takneekon key saath ack samasya hoti haye.
atirikt sanket prasanskaran key parinamswarup, dolby see-prakaar kii recording bahut kharaab dhwani degi jaba una upkaranon parr vaapas chalaaya jaayega jinamen aavashyak dolby see decoding paripath naheen haye. playback parr dolby bee kaa upayog karke iss kathorta koo cumm kiya jaa sakata haye, joe uchch aavrittiyon kii taakat koo cumm karane kaa kaam kartaa haye.
dolby see-type processing key saath, ack mano-dhwanik roop seey-samaan shore farsh banaae rakhane key prayaas mein aavritti mein dou ashtak cumm honey parr shore mein kamee shuru hoti haye. 8 khjd seey oopar key kshetra mein, jahaan kaana shore key prati cumm samvedansheel hotaa haye, vishesh varnakramiya-vakr aur anty-saturation network khel mein aatey hain. yeye paripath uchch aavrittiyon key saath cumm aavrittiyon key cross modulan koo rokte hain, jaba badey sanket pargaman maujood hotey hain tou tape santripti koo dabaate hain, aur casset tape pranali key prabhaavi headroom koo badhaate hain. natijatan, recording adhik swachchh aur adhik sateek hoti haye aur uchch aavritti pratikriya mein sudhaar hotaa haye jisaki casset madhyam mein pahale seey kamee thee. ack achchi gunavatta vaale tape key saath, dolby see pratikriya 0 dee. bee. recording star parr 20 key. aich. jee. taka sapaat hoe sakati haye, joe pahale seey apraapya parinam haye. 72 dee. bee. (400 heartz parr 3 pratishat) kaa ack bhaarit sanket-seey-shore anupaat sambhav thaa, jisamen koee avaanchhit "saans" prabhaav naheen thaa, yahaan taka kii record karane mein mushkil maargon parr bhee.
dolby see pahali baar 1980 key dashak mein uchch-anta key casset deck parr dikhaai diyaa. dolby see key saath pahala vyaavsaayik roop seey upalabdh casset deck nad 6150see thaa, joe 1981 key aspas bajar mein aaya thaa. dolby see kaa upayog btacam aur eumatic spu video casset praarupon key audio track key liye peshevar video upkaran parr bhee kiya gayaa thaa. japan mein, dolby see key saath pahala casset deck iva seey aid-aff5 thaa. dolby see key saath casset deck mein pichhade anukulata key liye dolby bee bhee shamil thaa, aur aamtaur parr "dolby bee-see nr" key roop mein label kiya jaataa thaa.
dolby aiss. aar.
1986 mein pesh kii gaee dolby aiss. aar. (spectral recording) pranali company kii doosari peshevar shore cumm karane vaali pranali thee. yeh dolby aeye kii tulanaa mein bahut adhik aakramak shore cumm karane kaa tarika haye. yeh input signal key anusaar badalane vaale filter kii ack jatil shrinkhala kaa upayog karke harr samay record kiye gaye signal koo adhikatam karane kaa prayaas kartaa haye. natijatan, dolby sr koo lagu karna dolby bee yaa see kii tulanaa mein bahut adhik mahanga haye, lekin dolby sr uchch aavritti seema mein 25 db taka shore mein kamee pradaan karane mein saksham haye. yeh kewal peshevar recording upkaran parr paaya jaataa haye.
chalchitra udyog mein, jahan taka filmon key vitaran print kaa sambandh haye, dolby aeye aur sr nishan dolby surround koo sandarbhit karate hain joe kewal shore cumm karane kaa ack tarika naheen haye, balki adhik mahatvapurna roop seey maanak optical soundtrack parr dou atirikt audio chainalon koo encode kartaa haye, joe baaen, kendra, daaen aur chaaron or dete hain.
aiss. aar. print puraane dolby upkaran key saath kaafee achchi tarah seey pichhade sangat hain. dolby sr-dee marking ack print parr analogue dolby sr aur digital dolby digital soundtrack donon koo sandarbhit kartaa haye.
dolby aiss.
dolby aiss koo 1989 mein pesh kiya gayaa thaa. iska uddeshya thaa kii dolby aiss vaanijyik poorv-record kiye gaye sangeet casset parr maanak bunn jaayega, jiss tarah seey 1970 key dashak mein dolby bee ney kiya thaa, lekin yeh taba bajar mein aaya jaba compact casset koo pramukh badey paimaane parr bajar sangeet praarup key roop mein compact disk dwara pratisthaapit kiya jaa rhaa thaa. dolby labs ney daavaa kiya kii aam janata key adhikansh sadasya cd aur dolby aiss encoded casset kii dhwani key beach antar naheen curr sakate they. dolby aiss jyaadaatar uchch-anta audio upkaran parr dikhaai diyaa aur kabhi bhee vyaapak roop seey upayog naheen kiya gayaa thaa.
dolby see kii tulanaa mein dolby aiss tape parivahan tantra seey honey vaale shore key kaaran honey vaali playback samasyaon key liye bahut adhik pratirodhi haye. isi tarah, dolby aiss mein dolby bee key saath playback sangatata honey kaa bhee daavaa kiya gayaa thaa, jisamen ack dolby aiss recording koo puraane dolby bee upkaran parr vaapas chalaaya jaa sakata thaa, jisase kuchh laabh mahsoos kiya jaa sakata thaa. yeh mool roop seey dolby sr kaa ack cutt-down sanskaran haye aur kaee samaan shore cumm karane kii takneekon kaa upayog kartaa haye. dolby aiss cumm aavrittiyon parr 10 dee. bee. shore mein kamee aur uchch aavrittiyon parr 24 dee. bee. shore mein kamee karane mein saksham haye.
dolby hx/hx-pro.
chumbakiya tape swabhavik roop seey chumbakiya samagri key hysterisis key kaaran gair-raikhik prakriti kaa hotaa haye. yadi ack analogue sanket seedhe chumbakiya tape parr darj kiya jaataa haye, tou iss gair-raikhikta key kaaran iska prajanan behad vikrit hoe jaayega. ise door karane key liye, ack uchch aavritti sanket, jise purvagrah key roop mein jaanaa jaataa haye, koo record kiye gaye sanket key saath milaaya jaataa haye, joe sanket key lifafe koo raikhik kshetra mein "dhakelata haye". yadi audio signal mein majboot uchch-aavritti samagri hoti haye (vishesh roop seey uchch-topi jhaanjh jaise taal vaadyayantron seey), tou yeh tape parr chumbakiya santripti kaa kaaran banane vaale nirantar purvagrah koo jodata haye. gatishil, yaa anukuli, pakshapaat swachaalit roop seey majboot uchch-aavritti sanketon kii upasthiti mein purvagrah sanket koo cumm curr detaa haye, jisase uchch sanket star parr record karna sambhav hoe jaataa haye.
mool dolby hx, "headroom extension" key liye, 1979 mein dolby prayogshalaon key keneth gandri dwara aavishkaar kiya gayaa thaa, aur ise apani antarnihit khamiyon key liye udyog dwara aswikar curr diyaa gayaa thaa. baing aind olufsen ney usee disha mein kaam karna jaari rakhaa, jisake parinamswarup jorgen selmer genson dwara 1981 mein ack patent (ee. pee. 0046410) praapt huaa. baing aind olufsen ney turant dolly prayogshalaon koo hx-pro kaa licenses diyaa, upabhokta utpaadon mein upayog key liye kaee varshon kii prathamikta avadhi nirdhaarit kii, taaki unake apane beacord 9000 casset tape deck kii raksha kii jaa sakey. 1980 key dashak key madhya taka, dolby prayogshalaon key madhyam seey vipanan kii jaane vaali baing aind olufsen pranali, dolby hx pro key naam seey ack udyog maanak bunn gaee.
hx-pro kewal recording prakriya key dauran lagu hotaa haye. behtar sanket-seey-shore anupaat upalabdh haye, chaahe tape koo kiss tape deck parr vaapas chalaaya jaae, aur isaliye hx-pro ack shore-kamee pranali naheen haye, jaisa kii dolby aeye, bee, see aur aiss haye, halanki yeh dhwani mein kamee encode/decode tracking sateekta mein sudhaar karane mein madad kartaa haye. kuchh record companiyon ney 1980 key dashak key anta aur 1990 key dashak kii shuruat key dauran hx-pro poorv-record kiye gaye casset tape jaari kiye.
takniki rujhaan.
peshevar aur upabhokta anuprayogon mein digital audio kaa vyaapak prasaar (ee.jee.compact disk, sangeet download, sangeet streaming) ney analogue audio utpaadan koo cumm prachalit banaa diyaa haye aur isaliye dolby drishti parr dolby kaa dhyaan kendrit kiya haye, lekin dolby key analogue shore mein kamee pranali kaa abhee bhee aalaa analogue utpaadan vatavaran mein vyaapak roop seey upayog kiya jaataa haye.