Markaan isku dayeyno inaan samayno sheeko fudud oo cod ah waxaa laga yaabaa inaan la kulano foodhi joogto ah oo joogto ah ama dhawaq foori ah oo xagga dambe ah. Dhibaato, aan loo baahnayn arrinta, waxaan bilaabeynaa raadinta siyaabo lagu xalliyo arrintan oo aan la kulanno casharro badan. Nasiib darro, qaar badan oo kuwan ka mid ah ayaa si cad u jahawareersan ama meel loogu talagalay alaab qaali ah. Ha werwerin, tijaabi Audacity software!

Audacity waa il furan oo bilaash ah, software maqal ah oo iskutallaab ah oo loogu talagalay Windows . Software-ka si fudud loo isticmaali karo. Waxaan horey usoo sheegnay qoraalkan aan ku barannay farsamada kala qeybinta iyo isku dhafka faylalka maqalka ah iyadoo la adeegsanayo Audacity . Maanta, waxaan baran doonaa sidii loo dhimi lahaa dhawaaqa asalka ah ee duubista iyada oo loo marayo Audacity .

Yaree ama ka saar buuqa asalka ah

Yaraynta Sawaxanka

Audacity waxay leedahay saamaynta maqalka 'yaraynta buuqa'. Waxay ka saari kartaa noocyada qaylada qaarkood duubista. Saamayntani waxay sida ugu fiican ugu shaqaysaa sanqadha sida xiiqinta gadaal. Si loo dhimo heerka qaylada, marka hore waxaad doorataa maqal codka ah oo kaliya oo samee 'profile buuqa'. Marka Audacity ay ogaato astaanta dhawaaqa, waxay yarayn kartaa dhawaaqa qaylada noocaa ah ee codka aad doorato.

Si aad u bilowdo, ku dar faylka codka abka Audacity waxay soo dejin kartaa qaabab badan oo faylal maqal ah oo caadi ah, oo ay ku jiraan WAV , AIFF , iyo MP3 .

Marka xigta, fiiri qaabka hirarka stereo. Kanaalka bidix waxa lagu soo bandhigay qaybta sare ee jidka iyo kan midig ee qaybta hoose. U fiirso in halka mawjada mawjadadu u dhowdahay xagga sare iyo hoose ee raadku, maqalku waa ka sii dheer yahay. U fiirso^(Notice) qaabka hirka stereo. Waxay ku tusi doontaa qaybaha aamusan. Isticmaal jiirkaaga oo guji oo jiid qayb aamusan si aad u doorato.

Intaa ka dib, u gudub liiska Saamaynta . ^(Effects)Audacity waxaa ku jira saameyno badan oo ku dhex jira kuwaaso kuu ogolaanaya inaad isticmaasho saameyn balaaran oo fur-in ah. Ka sokow, dhammaan saamaynta leh wada-hadalku waxay kuu oggolaanayaan inaad maqashid codka sida loo beddelay saamaynta ka hor intaadan isticmaalin saamaynta qaabka waveform.

Marka la galo, tag ' Yaraynta Sawaxanka^{(Noise Reduction)} ' dhagsii si aad u furto Daaqadda^(Window) . Raadi ikhtiyaarka akhrinta ' Profile Bayaan^{(Noise Profile)} ', ka dibna ku dhufo badhanka OK.

Taas ka dib, dooro qaybta galka dhawaaqa ee codku kor u kacay. Ku celi tillaabooyinka aan kor ku soo sheegnay, si isdaba joog ah oo wax ka beddel heerka dhimista buuqa haddii loo baahdo.

Marka la sameeyo, dooro OK.

Hadda, waxaad ogaan doontaa in qaabka mowjadda feylku isbeddelay maaddaama heerarka qaylada la dhimay, si tartiib tartiib ah. Daar qaniinyada codka si aad u xaqiijiso.

Waxaas oo dhan waxaa lagu fududeeyay Audacity sababtoo ah karti Xulashada Spectral^{(Spectral Selection)} . Waa sifada lagu garto gudaha Spectrograms , taas oo kuu ogolaanaysa inaad aragto inta jeer ee codka ka dibna aad wax ka beddesho soo noqnoqoshada la doortay. Tani waxay si gaar ah faa'iido u leedahay duubista codka. Ujeedooyinka kale waxaa ka mid ah, Xulashada Spectral^{(Spectral Selection)} iyo tafatirka waxaa loo isticmaali karaa,

1. Nadiifinta dhawaaqa aan la rabin adiga oo ka saaraya soo noqnoqoshada
2. Kobcinta dhawaaqyada qaarkood
3. Beddelidda tayada codka
4. Ka saarida dhawaaqa afka ee shaqada codka.

Rajaynaynaa in tani kuu shaqaynayso!

Reduce or Remove Background Noise using Audacity for Windows PC

While trying to do a simple vоіce narration we might experience a continual and conѕistent hisѕ or whistling sound in the backgroυnd. Troubled, unnecessarily by the issuе, we start lookіng for wayѕ to resolve this issue and come across mυltiple tutorialѕ. Unfortunately, manу of these are either plainlу confusing or pitch for a premium product. Don’t worry, give Audacity software a try!

Audacity is a free, open source, cross-platform audio software for Windows. The easy-to-use software. We had covered this post earlier in which we learned the technique of splitting and merging Audio files using Audacity. Today, we will learn to reduce background noise in a recording via Audacity.

Reduce or Remove Background Noise

Noise Reduction

Audacity features ‘Noise Reduction’ audio effect. It can remove some kinds of noise from a recording. This effect works best with noises like background hiss. To have the noise levels reduced, you first select audio that is just the noise and create a ‘noise profile’. Once Audacity knows the noise profile, it can reduce the loudness of noise of that kind in audio you select.

To begin, add a voice file to the app. Audacity can import many common audio file formats, including WAV, AIFF, and MP3.

Next, look at the stereo waveform. The left channel is displayed in the top half of the track and the right channel in the bottom half. Observe that where the waveform reaches closer to the top and bottom of the track, the audio is louder. Notice the stereo wave pattern. It will show you which parts are quiet. Use your mouse and click and drag over a quiet part to select it.

Thereafter, switch to Effects menu. Audacity includes many built-in effects that let you use a wide range of plug-in effects. Besides, all effects that have a dialog let you hear the audio as modified by the effect before you apply the effect to the waveform.

Once accessed, go to ‘Noise Reduction’ click it to open a Window. Look for the option reading ‘Noise Profile’, and then hit Ok button.

Following this, select the part of the sound file that has the voice over. Repeat the same steps mentioned above, sequentially and modify the noise reduction level if required.

When done, select OK.

Now, you will find that the file’s wave pattern has changed as the noise levels have been reduced, gradually. Play the sound bite to verify it.

All this has been made easy in Audacity due to Spectral Selection capability. It is the characteristic feature within Spectrograms, which lets you view the frequency content of audio then edit just selected frequencies. This is particularly useful for voice recordings. Among other purposes, Spectral Selection and editing can be used for,

1. Cleaning up the unwanted sound by removing frequencies
2. Enhancing certain resonances
3. Changing the quality of a voice
4. Removing mouth sounds from voice work.

Hope this works for you!

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