Ntau Suab Science Nrog Software Dawb: 7 Kauj Ruam

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

Kuv qhia txog tsev kawm ntawv qib siab lub cev thiab peb siv sijhawm los tham txog nthwv dej thiab suab nrov. Kuv tau pom tias yog ib txoj hauv kev zoo tshaj plaws los ua qhov no yog siv software dawb los tshuaj xyuas qhov sib haum xeeb ntawm ntau lub suab thiab tom qab ntawd rov kho lawv ib zaug ib zaug.

Peb muaj peev xwm tham txog, tsis tsuas yog hais txog ntau yam sib cuam tshuam ntau npaum li cas, tab sis kuj yuav ua li cas lub suab pib thiab ploj mus ua rau peb hnov dab tsi.

Kauj Ruam 1: Cov Khoom Koj Xav Tau

1. Khoos phis tawj nrog lub microphone input2. Microphone koj tuaj yeem ntsaws rau hauv computer3. Siab tawv. https://audacity.sourceforge.net/4. Visual Analyzer - Qhov program pub dawb oscilloscope rau Windows. https://www.sillanumsoft.com/5. Ib yam dab tsi los ua suab. Kuv tau pom lub beaker tsoo nrog tus xaum xaum xaum ua haujlwm zoo.

Kauj Ruam 2: Txheeb Xyuas Lub Harmonic Components ntawm Koj Lub Suab

Qhib Visual Analyzer thiab ua lub suab rau hauv lub microphone. Nco ntsoov saib lub qhov rai qis. Qhov ntawd yog FFT (Fast Fourier Transform), nws qhia peb pom qhov ua tau raug tsim tawm.

Koj yuav pom tias lub ncov tshwm thiab ploj mus sai heev. Kuv siv lub beaker ntaus los ntawm lub lwv kawg ntawm tus xaum. Yog tias koj xav ntes cov peaks, tsuas yog nyem rau hauv lub thawv "Tuav". FFT qhov rai yuav khaws tag nrho cov qhov siab. Thaum koj tau tswj hwm kom tau txais qee qhov zoo tshaj plaws koj yuav tsum tau tshem tawm qhov txwv. Yog tias koj tsis ua koj yuav ua suab nrov thiab tag nrho koj lub ncov yuav ploj mus (ntseeg kuv ntawm qhov no). Tsuas yog nyem rau ntawm qhov siab tshaj ntawm koj lub qhov rais FFT thiab VA yuav qhia koj li cas. Txog qee yam zoo li no kuv ib txwm khaws 3 txog 6 ntawm qhov siab tshaj plaws. Rau kuv qhov kev txiav txim siab ntawm qhov siab tshaj plaws (nrov nrov): 1680 Hz, 4380 Hz, 3330 Hz, 7420 Hz. Kuv tuaj yeem tuav tau ntau dua, tab sis plaub lub ntsiab lus tseem ceeb no yuav tsum ua.

Kauj Ruam 3: Pib Rov Tsim Kho Lub Suab

Tam sim no peb muaj peb cov ntaub ntawv peb tuaj yeem sim rov tsim dua lub suab. Nov yog qhov uas koj yuav xav tau Audacity. Thaum koj tau qhib Audacity tsuas yog mus rau "Tsim" cov ntawv qhia zaub mov thiab xaiv "Tone".

Ib lub qhov rais yuav tshwm sim. Khaws Waveform li Sine thiab teeb tsa zaus rau thawj zaus ntawm koj daim ntawv teev npe. Koj tseem yuav xav tau hloov qhov dav. Yog tias koj tso nws ntawm 1.0 ces thaum koj ntxiv lwm qhov zaus koj yuav xaus nrog lub suab tsis zoo. Kuv tau pom 0.3 yog qib zoo rau qhov nrov tshaj plaws. Tom qab koj tau tsim koj qhov zaus nyem ua si. Nws yuav tsum zoo ib yam li koj lub suab, tab sis nws yooj yim los qhia nws txawv.

Kauj Ruam 4: Ntxiv Koj Lwm Zaus

Txhawm rau ntxiv koj lwm qhov zaus koj yuav tsum xub tsim txoj hauv kev tshiab. Yog tias koj tsis Audacity yuav yooj yim ntxiv koj lub suab tshiab mus rau qhov kawg ntawm thawj qhov. Yog li, rau txhua lub suab nrov tshiab koj ntxiv koj yuav tsum xub mus rau Qhov Project menu thiab xaiv "New Audio Track".

Thaum koj tau ua qhov ntawd "Tsim" koj tshiab "Tone". Tau txais koj lub suab nrov thib ob thiab ntxiv rau hauv. Teeb tsa qhov siab me ntsis nrog txhua zaus koj coj los. Rov ua cov txheej txheem no rau txhua zaus koj xav ntxiv. Ntaus ua si thiab koj yuav hnov lub suab txaus ntshai. Kuv tau txuas kuv li koj tuaj yeem hnov nws. Nws tsis zoo li lub beaker txhua.

Kauj Ruam 5: Ua Nws Suab Zoo

Yog li, qhov teeb meem yog dab tsi? Rov qab mus rau Visual Analyzer. Un-click "Hold" thiab ntaus koj lub beaker dua. Koj pom dab tsi hauv FFT qhov rai? Qhov sib txawv sib txawv tso tawm sai heev, tsuas yog lub suab nrov tshaj plaws (uas tshwm sim los ua qhov thib 2 Harmonic) ua rau muaj txiaj ntsig zoo ntawm lub sijhawm.

Yog li, cia rov qab mus rau Audacity thiab txiav peb cov suab. Tsuas yog nyem thiab rub hla thaj av uas koj tsis xav tau thiab tom qab ntawd nyem qhov rho tawm. Kuv yuav cia thawj zaus nyob ib puag ncig ib nrab ob thiab txiav lwm tus mus txog ib nrab ntawm ib pliag thib ob. Ntaus ua si dua. Kuv tau txuas kuv dua. Nws tseem tsis zoo li. Muaj qhov laj thawj yooj yim rau qhov ntawd. Lub beaker tsis nres vibrating tam sim ntawd. Cov zaus uas tau tsim yog damped tawm, lawv qeeb qeeb.

Kauj Ruam 6: Cia Fade Nws Tawm

Yog li, yog li txhua yam peb yuav tsum tau ua yog xaiv "Fade Out" los ntawm "Effect" menu. Qhov txiaj ntsig tsis txaus txaus tiag tiag, tab sis yog tias koj rov ua qhov ploj dua ob zaug ntxiv nws xaus rau qhov zoo nkauj.

Kauj Ruam 7: Cov Khoom Kawg

Kuv vam tias kuv tuaj yeem tau txais cov ntaub ntawv kaw tseg zoo ntawm kuv lub beaker whacked, tab sis qhov no yuav tsum tau ua.

"Qhov tseeb Beaker" yog kaw ntawm kuv tsoo lub beaker. Kuv yeej xav tau lub microphone zoo dua. "Ua tiav Beaker" yog cov khoom xa tawm uas kuv tsim hauv Audacity. "Ua tiav Beaker nrog lub suab nrov" yog tib lub version nrog lub suab dawb me me (tsim hauv Audacity) kom ua suab zoo li kuv kaw tsis zoo.