Stop Unwanted Printing and Downloads in ONLYOFFICE
Set print and download limits for ONLYOFFICE links, room members, or Docs API sessions, then verify the restrictions from a recipient account.
Downloading videos from YouTube without sound is usually an error because we use the Internet Download Manager download tool to download videos from this site. I still know that IDM is the most popular and used download support tool today, but it also has certain disadvantages.
The reason is that IDM will automatically retrieve and receive all downloadable links, but sometimes it will separate audio and video files. Especially with videos in MP4 format, in addition to MP4 files as images, audio files in M4A format, users often have the habit of only seeing and downloading MP4 formats. This error caused a lot of discomfort when we watched movies online, downloaded Apple Army but could not hear anything.
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There are quite a lot of solutions, you can try the following ways as below to fix this error. These are already ways

Check the version of IDM in use, if not the latest version, you can remove IDM and download the latest version here.
How to use YTD Video Downloader to download videos on Youtube has been introduced to you by Download.com.vn. This is a professional tool specially designed for Youtube. Not only has the download speed been fast, the interface is simple and intuitive, but YTD is also capable of recovering corrupted, interrupted videos during the download process.
YTD Video Downloader software download link
Chrome is the most popular web browser in the world, but it still has some points not equal to Firefox , Coc Coc when these browsers have built-in downloaders (or have add-ons to support downloading) to be able to download YouTube videos come with the maximum guaranteed quality.
Reference article:
In addition to the above, we can use a few other similar ways:
With the ways that Download.com.vn has guided above, hopefully from now on, the video clips that you download from Youtube will no longer see the same error.
I wish you and your family a happy new year!
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