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I would like to take a WAV sound file and convert it to an MP4 video file, perhaps attaching a static picture to the MP4 video file. I want to so this because I want to post a WAV on a social network which does not accept sound files but accepts video files.

Where can I find free software for the PC (Windows 7) to accomplish this task?

  • I can't seem to find one which is (A) free, and (2) can be installed on a PC as opposed to being online. – John Sonderson Oct 6 '15 at 13:48
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    I've been using Any Video Converter (Free; not paid one) for years. See if it helps you here. – Firelord Oct 6 '15 at 15:02
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You can use Virtualdub.

  1. File>Open video file (choose Image sequence file type, then choose your img)
  2. Audio>Audio from other file (choose your wav or mp3)
  3. Video>Frame Rate (check the option "Change so video and audio durations match") enter image description here

  4. File>Save as Avi

Here is a link to directly export in mp4 from virtualdub: https://encodingtalk.com/threads/virtualdub-save-direct-to-mp4-fraps-to-youtube-with-external-encoders.2446/

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  • Thank you for your help. Could you please explain how to carry out step 3 in some more detail? I would like to know how to make the video and audio durations match, not sure about how to go about doing this. – John Sonderson Oct 6 '15 at 15:22
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    "Change so video and audio durations match" is a checkbox you have to check. I'll edit my answer – Alex Oct 6 '15 at 15:39
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If you prefer using a CLI, you can use FFmpeg:

  • Free and open-source
  • Runs on Windows, OS X, Linux
  • Allows to convert from wav to mp4
  • Is CLI so you can batch.
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