Oscilloscope Music: 7 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Taw qhia: Phau ntawv qhia no yog ua kom tau raws li qhov yuav tsum tau ua ntawm cov ntaub ntawv ntawm microcomputer cuam tshuam qhov haujlwm ntawm Utah State University.

Kauj ruam 1: Tom qab

Tom qab:

Lub oscilloscope yog siv los tso saib thiab ntsuas qhov ntsuas hluav taws xob uas tau npaj tseg rau lub sijhawm. Lub oscilloscope hauv XY hom phiaj lub teeb liab tawm tsam lwm lub teeb liab zoo ib yam li kev ntsuas sib npaug. Txoj haujlwm no siv oscilloscope hauv XY hom los tso saib cov duab tsim los ntawm cov ntaub ntawv suab.

Kauj Ruam 2: Thawj Lub Tswv Yim

Lub tswv yim qub rau txoj haujlwm yog hloov pauv Cathode Ray Tube (CRT) lub TV qub rau hauv XY oscilloscope thiab siv qhov ntawd los tso saib cov duab. Qhov no tuaj yeem ua tiav los ntawm kev tshem tawm cov coils deflection. Thaum koj txuas cov kab rov tav kab ib txoj kab ntsug tshwm, thiab thaum koj tshem tawm txoj kab ntsug, kab rov tav tshwm. Txhua yam kuv yuav tsum tau ua yog txuas lub suab xa mus rau cov kab hluav taws xob thiab kuv yuav muaj XY oscilloscope. Hmoov tsis zoo, kuv tau ntsib teeb meem ntau yam.

Kauj ruam 3: Teeb meem ntsib

Ib qho teeb meem uas kuv ntsib yog kev nyab xeeb. Lub TV muaj peev xwm txheeb xyuas tau tias nws txoj hlua khi tau raug txuas thiab yuav tsis qhib. Qhov no yog txhawm rau tiv thaiv lub tshuab hluav taws xob los ntawm kev hlawv lub qhov hauv phosphor ntawm lub vijtsam. Kuv ntsuas qhov tsis kam ntawm cov coils thiab tso lub resistor hla nws. Tus tiv thaiv tam sim ntawd kub hnyiab ib nrab vim tias qhov hluav taws xob siab. Kuv tau sim dua siv qhov ntsuas qhov ntsuas siab dua, tab sis qhov ntawd tsis ua haujlwm ib yam. Kuv tau nyeem qee lub rooj sib tham online txog yuav ua li cas lwm txheej ntawm cov khoom sib dhos tuaj yeem txuas rau lub TV qub, yog li kuv pom lwm lub TV thiab txuas nrog nws yog qhov ua kom tsis zoo rau kuv. Lub impedance tsis zoo ib yam yog li nws tsis tig rau. Tom qab qee qhov kev tshawb fawb ntau ntxiv kuv pom tias TVs qub tsis muaj kev nyab xeeb thiab tsis quav ntsej yog tias nws tau ua rau cov hlua tsis sib txuas. Kuv muaj peev xwm pom lub TV tsim tawm xyoo 2000 uas zoo li ua haujlwm. Kuv muaj peev xwm tau txais qee cov duab yooj yim ntawm lub vijtsam, tab sis txhua yam nyuab dua li lub voj voog yuav cuam tshuam ntau. Thaum kawg lub TV no tsis ua haujlwm thiab nws tseem tshuab tshuab fuse.

Kuv muaj peev xwm nrhiav tau lub TV me me uas tau tsim xyoo 1994. Lub TV no ua haujlwm tau zoo heev, tab sis kuv tsis muaj peev xwm kom tau txais kev taw qhia kom raug ntawm daim duab, txawm tias thaum kuv hloov lub teeb liab hauv txhua qhov ua ke. Nws kuj muaj teeb meem tib yam li lwm lub TV thiab yuav tsis tsim cov duab nyuaj. Tom qab kev tshawb fawb ntau kuv pom qhov teeb meem yog tias kuv tau sim tsim cov duab vector ntawm cov duab raster. Cov duab raster yog lub vijtsam uas ntsuas kab rov tav sai heev thiab tom qab ntawd ntsug ntawm tus nqi qeeb. Cov duab vector siv kab los tsim cov duab. Kuv pom cov lus qhia yuav ua li cas los hloov lub raster zaub rau cov duab vector, tab sis cov txheej txheem tau txaus ntshai thiab yuav siv sijhawm ntev.

Kauj ruam 4: Kev daws teeb meem

Tom qab tag nrho cov teeb meem no, kuv muaj peev xwm nrhiav qhov kev daws teeb meem yooj yim zoo nkauj; XY oscilloscope emulator program uas tau siv lub suab los ua tswv yim. Thaum kuv pom qhov haujlwm no, Kuv hloov pauv los ntawm kev tsom mus rau tsim oscilloscope los tsim txoj hauv kev los tsim cov ntaub ntawv audio los ntawm cov duab los tso saib ntawm oscilloscope.

Oscilloscope Emulator Cov

Kauj Ruam 5: Ntes Ntes Ntes thiab Matlab Txoj Haujlwm

Nov yog daim ntawv qhia yooj yim ntawm kuv qhov program. Nws pib tawm nrog cov duab uas tau rub rau hauv EdgeDetect.m MATLAB txoj haujlwm. Qhov kev zov me nyuam hloov nws mus rau cov duab grey-scale thiab tom qab ntawd pom cov ntug hauv daim duab. XY kev tswj hwm ntawm cov ntug pom tau muab tso rau hauv ob kab ntawv uas tau hloov pauv mus ua suab.

Kauj Ruam 6: Piv txwv: Qhia Neeg Hlau

Nov yog qhov piv txwv ntawm cov txheej txheem nrog cov neeg siv qhia tau. Ua ntej rub tawm daim duab ntawm tus neeg siv qhia paub thiab khaws nws li "image.png" rau hauv koj li MATLAB ua haujlwm nplaub tshev (tib qhov chaw "EdgeDetect.m"). Nco ntsoov tias daim duab tsis muaj dab tsi uas koj xav kom kuaj pom lossis nws tuaj yeem ntxiv ib pawg ntawm kev tswj hwm tsis tseem ceeb rau hauv koj cov ntaub ntawv suab. Khiav EdgeDetect qhov program thiab cov duab yuav raug hloov pauv mus rau qhov grey-scale, thiab muaj nws cov ntug pom thiab khaws cia ua cov ntaub ntawv suab hu ua "vector.wav". Tom ntej no qhib lub suab ntawv hauv Audacity lossis lwm lub khoos phis tawj khoos phis tawj. Qhib koj li oscilloscope emulator program (txuas hauv cov kauj ruam dhau los), teeb tus qauv piv rau 192000 Hz, nias pib, nyem lub pob microphone, thiab xaiv kab hauv kev xaiv. Hauv Audacity nias "ua haujlwm + spacebar" los ua cov ntaub ntawv suab hauv lub voj. Cov duab yuav tsum tshwm ntawm tus oscilloscope emulator.

Kauj Ruam 7: Troubleshooting/Piv Txwv Cov Ntaub Ntawv

Raws li kuv tsim txoj haujlwm no kuv yuav tsum tau kho qee qhov teeb tsa hauv qhov program. Nov yog qee yam los tshuaj xyuas ob zaug yog tias nws tsis ua haujlwm:

-Txhais kom koj lub suab tso tawm tau pub rau hauv koj kab hauv koj lub khoos phis tawj thiab koj muaj 2 qhov sib cais (sab laug & sab xis) suab raws

-Yog tias daim duab tsis tau nyeem los ntawm MATLAB txoj haujlwm koj yuav xav tau kho nws hauv cov xim thiab txuag nws ua lwm hom ntawv.

-Ntawm kab 61 ntawm txoj cai, nco ntsoov suav nrog cov lej los ntawm ntug pom lub vijtsam. Qhov kev zov me nyuam feem ntau tso ib lub duab plaub nyob ib ncig ntawm txhua yam uas koj tuaj yeem txiav tawm los ntawm kev hloov nws los ntawm "i = 1: ntev (B)" txog "i = 2: ntev (B)". Tsis tas li, yog tias koj muaj tus lej tshwj xeeb uas koj xav suav nrog, tab sis tsis xav kom suav nrog txhua tus, koj tuaj yeem siv cov lej sib npaug kom tau txais cov lej tshwj xeeb: "[1 3 6 10 15 17]"

-Yog tias daim duab zoo li tshee hnyo thiab ib feem nyob thoob plaws qhov chaw koj yuav xav tau kom txo tus lej los ntawm kev kho "N" ntawm kab 76. Cov duab yooj yim dua N tuaj yeem yog, tab sis nws yuav tsum siab dua yog tias daim duab yog txoj. Rau tus neeg hlau kuv siv N = 5.

-Koj tseem tuaj yeem kho "Fs" ntawm kab 86. Cov qib piv txwv siab dua qhov duab yuav zoo dua, tab sis qee daim npav suab yuav tsis tuaj yeem ua tus nqi piv txwv siab dua. Cov nkauj niaj hnub no muaj qhov piv txwv ib puag ncig 320000 Hz.