Why do mp4 have no sound after downloading

 

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 · That is, the audio codec of the MP4 file is not supported. Because the MP4 is a format container, which can store not only video codecs, but also many audio codecs, such as MP3, WMA, Opus, AAC, AC-3, DTS, LPCM, ALAC, DTS-HD. If the media player does not support the audio codec in the movie you just watched, you may encounter the MP4 file no sound issues.  · Corruption in MP4 File. Most of the time, it’s the media file that is corrupt and causes the ‘no sound’ issue. Now, the reason behind media file corruption could be an improper shutdown of the media application, corruption in hard drives in which the file is Estimated Reading Time: 5 mins.  · It can result in anything from video artifacts only in specific resolutions to sound distortions. Unfortunately, from time to time, the software fails, and there is nothing you can do to prevent it. Another problem is that codecs are considered non-essential and are generally up to the user to download and install.

Video files moved from iPhone to my Windows PC do no play sound on PC Alert and recorded video clips need to play sound on Windows Movies & TV program, without downloading 3rd party programs. If you share a video with someone, then they should be able to play it simply and easily as well. My hard drive is pretty full at the moment. I recorded a bltadwin.ru meeting last night to my hard drive. When I add the MP4 clip to Screenflow, I can see the video okay, but there is no audio. I extracted the audio track. I can see the audio bars, but have no sound. I have checked speakers etc and all fine. I can add the file to QuickTime and hear. It is not without problems however. Some users found that VLC was not able to open the mp4a (AAC) audio encoder, others complained that there is no audio after video conversion with VLC. "I've spent the last 2 hours trying to convert bltadwin.ru files bltadwin.ru4 and every time there has been no audio.

If the MP4 file is not encoded with an audio codec that your media player supports, you may come upon the issue that your MP4 file plays fine but it has no sound. In that case, you can convert the audio in the MP4 file to a codec that is compatible with your media player, probably AAC. This requires third party software like HD Video Converter. Read on to find a step-by-step guide talking about how to process file conversion. If your MP4 or MKV file contains a video codec that is incompatible with VLC, a VLC no sound error will result. The reason for this scenario might be due to the codec being incorrectly installed or corrupted. Generally speaking, converting MOV to MP4 no audio is a universal problem that can be fixed by making sure that the conversion audio bitrates match. When the bitrates of the original file is not corresponding to that of your audio setting, VLC might produce a converted file without sound.