Low audio on avi file

[newyork2000]

I have a movie, but when I play it in MS Media Player I'm forced to turn the volume knob to max, and still have a poor audio.
I think I have the proper codecs installed.
In AVICODEC I have XVID Mpeg4 for video and "AC-3 ACM" for audio.
I've downlaoded and installed both, but still the audio is very very poor.
What can I do to enhance it?

My actual plan, after verifying audio is ok, is to join this (2-part) movie in one part with VirtualDub and burn it then on DVD.

Thanx everybody

[redwudz]

One method you might use is VirtualDub Mod to increase the volume. In 'Streams>Stream list', right click on the audio file and select 'Full processing mode'. Right click on it again and select 'Volume'. Adjust as needed. Click 'OK' Under 'Video', select 'Direct stream copy'. This will resave the file with the new audio without changing the video.

If you need to do more filtering or fine tuning on the audio, save it out as a WAV and use the freeware audio editor Audacity. Take the output of that and use ffmpeggui to put it back into AC3 format. Then either add that back in with the video with VDM, or if your authoring program accepts elemental streams, like TMPGEnc DVD Author, add it in then.

If you plan to take two of these files and make a DVD, don't join them. Just put them individually into a DVD authoring program and let it do the 'joining'. You avoid a lot of audio sync problems that way.

[Baldrick]

if you are just going to play it on the computer can you use ffdshow and set it to decode the audio(usually mp3 or ac3) and increase the audio in the filter settings.

[RabidDog]

download and use ac3filter by some russian geezer.
reboot after installing, click on it (control panel) to adjust ac3 playback volume..

[newyork2000]

if you are just going to play it on the computer can you use ffdshow and set it to decode the audio(usually mp3 or ac3) and increase the audio in the filter settings.

I'm going to burn it on DVD support and play it on a standard DVD home player

[guns1inger]

Then don't change it. Let your player and amp take care of it. It's AC3 - it is meant to be this way.

[=CrAzYG33K=]

I'm encountering the same problem as well.. But mine's in VOB format.
If I save the audio out using VDM and then to increase the volume using a third party app like Audacity or BeLight .. Is that possible?

[newyork2000]

Then don't change it. Let your player and amp take care of it. It's AC3 - it is meant to be this way.

AMP? what is that? Sorry for my ingnorance
What do you mean when saying that since it is AC3 it is meant to be this way? That even when I'll move it on DVD I will have a poor audio?

[Abond]

amp=amplifier

[kschang]

If you play back with FFDShow, you can adjust the audio levels, but it'd be a "global" settings. You could also turn on the normalization, which should boost volume a bit to compensate.