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I film via a videocamera with has a microphone that unfortunatly often not loud enough. That camera stores the videos on mini DVD and at the moment I copy the videos from the camera to my computer via a batch file. Is there a command in VLC-Player that allows me to double the volume of the file that gets created?

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i don't have a good VLC-specific answer. for your purposes i'd seriously recommend using a real video editing toolchain and processing your audio separately. vlc is a great player, and workable as a transcoder, but for real quality results you shouldn't be transcoding before the video even gets to the computer. –  quack quixote Apr 28 '10 at 15:05

2 Answers 2

up vote 2 down vote accepted

VLC can while transcoding convert the audio codec and/or change the bitrate, but it doesn't have an option for changing the loudness. You need for that a more specialized product.

Although you haven't specified your operating system, I'll assume that it's Windows. In that case, Windows Movie Maker can do that.

From Adjusting audio in Windows Movie Maker: frequently asked questions:

How can I adjust the audio levels of music and audio that are playing at the same time so that I can hear both?

The default audio setting in Windows Movie Maker is for the audio portion of imported video and any narration or music that you add to play at equal levels, but you can change that setting if it does not give you the balance that you want. To adjust the audio levels, do the following:

  1. Click Tools, and then click Audio Levels.
  2. Do one of the following:
    a. To increase the level of audio on the Audio track that is part of a video clip, drag the slider toward Audio from video.
    b. To increase the level of audio that is on the Audio/Music track, drag the slider toward Audio/Music.
  3. Click Close.
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What you want to do is normalize the audio - some details in this article

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yet that article compresses the audio, which means it would actually lose some of the sound dynamics. –  barraponto Apr 29 '10 at 1:50

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