Editing volume levels without too much video quality loss.

[meneedit]

Hi guys I recently decided to start a music video collection and I have a bit of a dilemma.

Obviously, being a music video collection the volume levels can vary quite a bit but I would like to make them all roughly the same volume.

Taking this task into consideration the first thing that popped into my head is that it cannot be done without re-compressing the video file (unless things have changed over the last 5 years).

So, having this in mind I am after the most appropriate video editing program for:

1. Automatically keeping the same video resolution/codec etc...
2. Somehow re-rendering the video file with the least amount of video compression
3. Quick and easy audio volume editing (but being able to see the waveform is a must)


Can anybody here think of the best program for this?... and if so, please explain why.

Thank you all in advance

[AlanHK]

it cannot be done without re-compressing the video file

Of course it can.

Demux the file to video and audio.
Boost the audio,
Remux the original video and new audio.

Video unchanged, audio suffers slight degradation.

Details depend on the format.
Eg, if they're AVI, you can do this with VirtualDub or Avidemux, and perhaps Audacity for the audio.

And if it's MP3 audio, you can boost audio losslessly. (MP3Gain, eg.)

[meneedit]

Thanks dude, I'll give it a shot

[meneedit]

Will those programs do the muxing as well as demuxing?

[AlanHK]

Will those programs do the muxing as well as demuxing?

Specify what format your source files are.

[IKnowNothing]

There is a "script" called avi_gain which will demux your video, normalize the audio track and then remux it back together.
It's easy and will run through all avi files in a given folder.

It uses Mencoder and lame so the encoding is quite good. Only problem is I can't remember where I downloaded it from. However if you want a copy I can rezip my copy and post it here

[meneedit]

Will those programs do the muxing as well as demuxing?

Specify what format your source files are.

.avi's, .mkv's, and occasionally .mp4's

[meneedit]

There is a "script" called avi_gain which will demux your video, normalize the audio track and then remux it back together.
It's easy and will run through all avi files in a given folder.

It uses Mencoder and lame so the encoding is quite good. Only problem is I can't remember where I downloaded it from. However if you want a copy I can rezip my copy and post it here

that would be awesome thanks dude, i'm just looking for a quick fix for the majority of them.

to tell the truth I was expecting hundreds of replies.