Sunday, September 13, 2015

Remove noise - or hiss - from recordings with Audacity 2.1.0 AKA Audacity 2015

I had written a tutorial long ago about how to remove noise (hiss) from recordings using Audacity. Audacity has grown since then and my last tute may be confusing to those who are using the latest version of Audacity, so here's a tute on using the new software.

First, open your recording in Audacity. There are two ways to do this, no matter which version of Windows you are using:
  1. Open Audacity. Go to File--> Open. Navigate to the folder where you've stored the audio file and double-click the filename.
  2. Use Windows explorer to navigate to the folder where you've stored the file. Right-click the filename, select "Open with" and select Audacity from the droplist that pops up.
The second method, though faster, may not work if you haven't opened an audio file in Audacity before. If you don't see Audacity in the droplist, simply abort the operation and try the first method given above.

Once you open the file in Audacity, it'll look something like this:

Those squiggly lines you see are the parts of the track that contain sound. In this particular track, noise was heard mainly when the person was speaking. Fortunately, there was a small section that had noise without the person's voice. Look for such sections of the track and click-drag to select one such section (all noise, no voice):

Your screen should look something like this:

Next, click Effects--> Noise Reduction:


The following screen will appear:

Click "Get Noise Profile".

You will be taken back to the track with your selected part highlighted, like so:

Hit Ctrl+A (holding down Ctrl, hit A on the keyboard) to select the entire track. Now your screen should look something like this:


Now go to Effects--> Noise Removal again:


You will be presented with the Noise Removal dialog again. This time, click "Preview":



If you are happy with the noise removal, OK your way out and export your cleaned file. If there is still a buzz, move the sliders a wee bit to the right and listen to the preview again. If you find that there is distortion of the audio track, move the sliders a wee bit to the left. Keep experimenting until you find the right balance and then OK your way out and export to wav or mp3.

Some recordings may be really too terrible to be completely cleaned. In such cases, work to a best solution.

All the best,
Deepak



51 comments:

  1. This comment has been removed by a blog administrator.

    ReplyDelete
  2. This comment has been removed by a blog administrator.

    ReplyDelete
  3. This comment has been removed by a blog administrator.

    ReplyDelete
  4. This comment has been removed by a blog administrator.

    ReplyDelete
  5. This comment has been removed by a blog administrator.

    ReplyDelete
  6. This comment has been removed by a blog administrator.

    ReplyDelete
  7. This comment has been removed by a blog administrator.

    ReplyDelete
  8. Anonymous2:43 am

    I cannot BELIEVE how well this works. You have saved me so much hassle. many, many thanks.

    ReplyDelete
  9. Nice Post thanks for sharing with us

    ATMA 2018

    ReplyDelete
  10. Hello nice work!!
    Such a completely beneficial article. Very interesting to read this article. I would like to thank you for the efforts you had made for writing this amazing article. Keep it up the extremely good writing. I appropriate to your work please visit us Online Local Search result at right here.
    Many thanks!

    ReplyDelete
  11. very useful to us.i really like it
    personalrekrutierung

    ReplyDelete
  12. Anonymous2:45 pm

    Amazing post. Thank u so much for sharing with us.
    JAC 12th Date Sheet 2018

    ReplyDelete
  13. Hi, This is so cool!
    Thank you so much for giving this extremely good information. This is a smart content material and easy to read. I suppose many people visit your blog and interesting questions and answers. If you have any other information related for Community Building Program for Parents. Wish you'll work like this all the time and I will come again to visit your site.
    Thank You

    ReplyDelete
  14. For new job updates
    https://alert360plus.com/

    ReplyDelete
  15. JNVU Time Table 2019 | BA B.Sc B.Com Exam Date Sheet Download

    ReplyDelete
  16. Now Discover the latest news about freebies, games hacks & tips, gift cards and much more. Keep coming for Latest Gaming Updates, Tech news, and Guides. 12 Best Free Instagram Followers Apps for Android & iPhone in 2019

    ReplyDelete
  17. Nice information provided by you, it really helped me to understand this topic. I have also referred this article to my friends and they also enjoyed this informative post. Audacity Crack

    ReplyDelete
  18. This type of message always inspiring and I prefer to read quality content, so happy to find good place to many here in the post, the writing is just great, thanks for the post. what is an aae file, what are aae files

    ReplyDelete
  19. I like this promoting strategy. HispeedLaser

    ReplyDelete
  20. You make so many great points here that I read your article a couple of times. Your views are in accordance with my own for the most part. This is great content for your readers. PCB assembly

    ReplyDelete
  21. All things considered, I saw some counsel from "Shark" financial backer Barbara Corcoran a day or two ago which caused me to recoil and I needed to put this out there as an addendum to her recommendation. Barbara isn't in the realm of programming. Patents for image processing techniques for extracting features

    ReplyDelete
  22. Major thanks for the article post. Really looking forward to read more.uninterruptible power supply malaysia

    ReplyDelete
  23. The article was up to the point and described the information about education and learning. Thanks to blog author for wonderful and informative post. Disability insurance

    ReplyDelete
  24. This article is an appealing wealth of useful informative that is interesting and well-written. I commend your hard work on this and thank you for this information. I know it very well that if anyone visits your blog, then he/she will surely revisit it again. React.Js Support

    ReplyDelete
  25. The provision of access to websites and storage space to individuals and companies who owns websites is known as web hosting. This Internet Hosting service enables organizations and individuals to make the sites that they own accessible on the World Wide Web. The service also allows organizations and individuals to serve content on their web sites. https://onohosting.com/

    ReplyDelete
  26. For this web site, you will see our account, remember to go through this info. seo service

    ReplyDelete
  27. Learn the advantages of an ecommerce design. competitors pricing

    ReplyDelete
  28. During these tough economic times, it is no surprise that land based casinos are losing money.spbo handicap

    ReplyDelete
  29. Anonymous11:53 am

    What can a U.S. VPN allow you to do? Unlock online freedom. dark web sites

    ReplyDelete
  30. Those who especially live in China, Europe, USA, Middle East and Africa will know what VPN Service actually is. For those who still do not know anything about VPN technology despite of it being one of the fastest growing technology and businesses on Internet. work from home

    ReplyDelete
  31. Anonymous12:59 pm

    Choosing a right VPN provider can be uneasy for an inexperienced user. In this article we describe the main reasons for using a VPN connection trying to choose a VPN provider that suits your needs. auto sliding gate bd

    ReplyDelete
  32. Initial You got a awesome blog .I determination be involved in plus uniform minutes. i view you got truly very functional matters , i determination be always checking your blog blesss. Printed Circuit Board

    ReplyDelete
  33. A touch board configuration is just a graphical connection point that discussions to mechanization hardware, it fuses pictures, text, fastens or in any event, moving pictures and transferred video. Yealink A20
    Yealink Meetingbar A20

    ReplyDelete
  34. Technology We can now propose a text-centered model of science and technology that starts from investigative observations, which derive scientific/technological texts, which in turn lead to actions through proper application.

    ReplyDelete
  35. BIIT(Brahmanand Institute of Information & Technology) provides the Best digital marketing course in Laxmi Nagar. It contains highly professional and well certified computer trainees. Call us on to get full details about courses 9311441524.

    ReplyDelete
  36. Need professional WordPress Web Design Services? We're experts in developing attractive mobile-friendly WordPress websites for businesses. Contact us today! https://just99marketing.com/wordpress-web-design

    ReplyDelete

Hi,

Please keep your comment focused on technology. Comments of a political nature will be deleted.

Thanks,
Deepak