Sixoxa ngedivayisi yokudlulisa umsindo oqonde ngqo. Isebenzisa "ama-acoustic lens" akhethekile, futhi isimiso sayo sokusebenza sifana nesistimu ye-optical yekhamera.
Ngokuhlukahluka kwe-acoustic metamatadium
Ngokuhlukile , izici ze-acoustic ezincike esakhiweni sangaphakathi, onjiniyela nososayensi sebenesikhathi eside besebenza. Isibonelo, ngo-2015, izazi ze-physics ziphethe kuphrinta ye-3D, “i-acoustic diode” - iyisiteshi esiyisilinda esivumela umoya ukuthi udlule, kodwa ikhombisa ngokuphelele umsindo ophuma ohlangothini olulodwa kuphela.
Futhi kulo nyaka, onjiniyela baseMelika bathuthukise indandatho ekhethekile evimba umsindo ofinyelela ku-94%. Umgomo wayo wokusebenza usekelwe , lapho amandla amagagasi amabili aphazamisayo asatshalaliswa ngokulinganayo. Sikhulume kabanzi ngale divayisi kwenye yethu .
Ekuqaleni kuka-Agasti, enye intuthuko yomsindo yaziwa. Onjiniyela abavela eNyuvesi yaseSussex i-prototype yedivayisi, esebenzisa ama-metamatadium amabili (“ama-acoustic lens”) kanye nekhamera yevidiyo, ikuvumela ukuthi ugxilise umsindo kumuntu othile. Lo mshini wawubizwa ngokuthi “i-sound projector.”
Kanjani lo msebenzi
Ngaphambi komthombo womsindo (isipika somsindo) kukhona "amalensi acoustic" amabili. Lawa ma-lens ayipuleti lepulasitiki eliphrintiwe le-3D elinezimbobo eziningi. Ungabona ukuthi lawa "lens" abukeka kanjani ekhasini lokuqala (udinga ukuvula umbhalo ogcwele wedokhumenti).
Imbobo ngayinye "kulensi yomsindo" inesimo esiyingqayizivele - isibonelo, ukungahambi kahle ezindongeni zangaphakathi. Uma umsindo udlula kulezi zimbobo, ushintsha isigaba sawo. Njengoba ibanga phakathi "kwamalensi acoustic" lingahlukahluka kusetshenziswa izinjini zikagesi, kuba nokwenzeka ukuqondisa umsindo endaweni eyodwa. Inqubo ikhumbuza ukugxila kwekhamera.
Ukugxila kuyazenzakalela. Lokhu kwenziwa kusetshenziswa ikhamera yevidiyo (ebiza cishe u-$12) kanye ne-algorithm yesofthiwe ekhethekile. Ikhumbula ubuso bomuntu kuvidiyo futhi ilandelela ukunyakaza kwakhe kuhlaka. Okulandelayo, isistimu ibala ibanga elihlobene bese ishintsha ubude bokugxila beprojektha ngokufanele.
Izosetshenziswa kuphi?
Abathuthukisi ukuthi esikhathini esizayo uhlelo lungashintsha ama-headphones - amadivaysi azosakaza umsindo usuka kude uye ezindlebeni zabasebenzisi. Enye indawo engaba khona yokufakwa kwesicelo iminyuziyamu nemibukiso. Izivakashi zizokwazi ukulalela izinkulumo ezivela kubaqondisi be-elekthronikhi ngaphandle kokuphazamisa abanye. Yebo, ngeke sehluleke ukuqaphela inkundla yokukhangisa - kuzokwaziwa ukwazisa izivakashi zesitolo mayelana nemibandela yokukhushulwa komuntu siqu.
Kodwa onjiniyela kusafanele baxazulule izinkinga ezimbalwa - kuze kube manje i-audio projektha ikwazi ukusebenza kuphela ebangeni elilinganiselwe lefrikhwensi. Ngokucacile, idlala kuphela amanothi G (G) kuya ku-D (D) ku-octave yesithathu neyesikhombisa.
Izakhamizi zeHacker News nazo izinkinga zomthetho ezingaba khona. Ikakhulukazi, kuyodingeka ukulawula ukuthi ubani futhi ngaphansi kwaziphi izimo ozokwazi ukuthola imilayezo yokukhangisa yomuntu siqu. Uma kungenjalo, isiphithiphithi sizoqala emagcekeni ezitolo zezitolo. Njengoba abathuthukisi be-"audio projektha" besho, le nkinga izoxazululwa kancane ngohlelo lokubona ubuso. Izonquma ukuthi umuntu uvumile yini ukuthola lezo zikhangiso noma cha.
Kunoma yikuphi, akukho nkulumo okwamanje mayelana nokuqaliswa okusebenzayo kobuchwepheshe "endle".
Ezinye izindlela zokudlulisa umsindo oqondile
Ekuqaleni konyaka, onjiniyela abavela ku-MIT bathuthukise ubuchwepheshe bokudlulisa umsindo oqondile usebenzisa i-laser ene-wavelength engu-1900 nm. Ayinangozi ku-retina yomuntu. Umsindo usakazwa kusetshenziswa okuthiwa lapho umhwamuko wamanzi osemkhathini udonsa amandla okukhanya. Ngenxa yalokho, ukwanda kwendawo yokucindezela kwenzeka endaweni ethile endaweni. Umuntu angabona ukundindizela komoya okuba umphumela “ngendlebe enqunu.”
Ochwepheshe boMnyango Wezokuvikela wase-US bathuthukisa ubuchwepheshe obufanayo. Besebenzisa i-laser ye-femtosecond, bakha ibhola le-plasma emoyeni, futhi babangele ukudlidliza komsindo kulo besebenzisa enye i-nanolaser. Yiqiniso, ngale ndlela ungakwazi kuphela ukudala ukubhonga nomsindo ongajabulisi, ofana nokukhala kwenhlabamkhosi.
Kuze kube manje, lobu buchwepheshe abukashiyi ilabhorethri, kodwa ama-analogue abo aqala "ukungena" kumadivayisi wabasebenzisi. Ngonyaka odlule, uNoveto kakade isipikha somsindo esidala "ama-headphones abonakalayo" ekhanda lomuntu sisebenzisa amagagasi e-ultrasonic. Ngakho-ke, ukwamukelwa okusabalele kobuchwepheshe bomsindo oqondisayo kuyindaba yesikhathi kuphela.
Esibhala ngakho "Ezweni lethu le-Hi-Fi":
Source: www.habr.com