I writing this post to explain to others what I just discovered after reading other other posts and some experimenting. While it seems these features are present in AVS Video Editor, there is no obvious local help explaining it, nor (so far as I can find any page under Working with AVS Video Editor to demonstrate this either. The instructions here are based on a reply in the [URL=http://forum.avs4you.com/posts.aspx?lng=ENG&t=842&p=2]Video Editor and audio editing[/URL] thread. I'm reposting that here so that it will show up on searches more obviously.

The Audio Envelope
Each object on an Audio Mix track has what's called an envelope. This is a green (or red, if you've selected the object) line that appears over the wave pattern of the object (see attached image). By default this is a flat line about mid-high in the track, and reflects a standard level of volume for that object. You can place your mouse over this and when you get the selection cursor - see Audio Envelope (selection) - you can left click and drag this up or down to adjust the whole envelope. It's also possible to adjust the level of the envelope at different points - see Audio Envelope (edited).

End Points
Each end of the envelope line is an actual point, and can be raised and lowered individually.

To edit the endpoint, you have to select it first. First select the object by just clicking on it - the envelope line should now be red. Then move the mouse over the point where the line touches the end of the object - it should look something like Audio Envelope endpoint (selected). Then left click and drag the mouse, and you can raise and lower that point - like the example in Audio Envelope endpoint (edited). Let go of the left button and the point is set. You can repeat the process again if you're unhappy with the result.

Adding points to the envelope
You can add more points to the envelope, and each one can be adjusted just like the end points. To add a point, first select the envelope line by placing the mouse over it - see Audio Envelope line (selected). Then, double click and a new midpoint is added at that location - as per Audio Envelope midpoint.

Moving points on the envelope
Once you've added a midpoint to the audio envelope, you can play around with it. You can move it up or down like the endpoints, and also left or right. First you have to select it. Move the mouse over the midpoint until you get the selection cursor like Audio Envelope midpoint (selected). Then left click and drag it to where you want it, and let go of the button. The midpoint is then placed, like the Audio Envelope midpoint (moved) image. You can always move the midpoint again using the same process, or add new midpoints as listed above.

What you can't do yet, is delete individual midpoints. If you've made a mess of the envelope, you can select RESET ENVELOPE in the context menu. This will restore it to a flat line with two endpoints.

Fade-ins and Fade-outs
There are two ways to d a fade-in/fade-out.

The first is split the audio object at the point at which you want the default volume volume level to start/end. This then creates two audio objects with two endpoints each. If you want a fade-in, then you move the starting endpoint of the first object down to the bottom of the track. If you want a fade-out you move the finishing endpoint of the second object down to the bottom - see Audio Envelope fades (split) for examples.

The other method is to add midpoints towards the the ends of the object, and move the nearest endpoints down to the bottom of the track. See Audio Envelope fades (midpoints) for an example of this.

To: LauraEss


Thanks Laura! This will be helpful!

Michael

To: LauraEss
Thank you for all of that nice and useful information Laura. Since you have figured out so much here, might I ask along the same lines if you have figured out how to keeping that awful little blip of noise from happening at the end of a fadeout.

To: Larry49

Dear Larry,

Please see my post here to find the instructions on how to resolve the issue.

Please inform about the result.

Kind regards

To: Larry49


Hi larry, just checking up on this. Were you able to fix this already?

To: slicendice

Dear user,

Your post has been moved. Please follow this link.

Kind regards