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I have a MOV-Video file and I want to increase the volume of the audio layer without reencoding the entire video.

Is there a way to solve this problem?

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    I'm not sure if this is the right SE to ask this question. Maybe avp.stackexchange.com is a better place? In the meantime have a look at ffmpeg. Here it is explained how you can add audio to video without re-encoding. You can extract the original audio, increase the gain and then add it back to the video with the linked method.
    – Saaru Lindestøkke
    Commented Dec 18, 2013 at 16:07
  • Your answer already completely solved my problem! :)
    – inxs
    Commented Dec 20, 2013 at 10:47

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One thing you can do is use a video viewer like IINA on macOS, which allows you to go beyond the 100% volume limit. It allows you to set the volume up to 1000%, so if you are trying to view an unusually quiet video, you can increase the volume in IINA without having to crank up your computer's volume too much.

In IINA: You can set maximum volume (100-1000%) in Preference, and use ↑ to set volume larger than 100%.

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    Only after setting value more than 100 in application Preferences, you can increase the volume to more than 100
    – Antony
    Commented May 10, 2020 at 16:46

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