To add any audio select the desired track reflected in the Media Library and drag it to the workspace which is represented in Timeline view. Please note that you can select the tracks view type between Thumbnails or List.

Follow the steps below:

1. Select Add Audio button in Create Movie menu pane.
2. Navigating among audio tracks reflected in the Media Library select the desired track icon.
3. Drag and drop it to the workspace.
4. Set boundaries of audio on the Timeline.
5. Preview the result using Main Preview window.

AVS Video Editor has a great feature of editing audio tracks with advanced AVS Audio Editor included into the installation or any of the audio editors installed on your computer. You can select the audio editor to be used in the Audio section of the Environment Settings... Main Menu item or using the Audio Settings button in the Timeline menu. To start expanded audio editing with AVS Audio Editor please click the Edit in Audio Editor button or press F4 key.

You can adjust the audio levels between the two audio tracks (the audio that was recorded as part of a video clip on the video track and the audio that was recorded or imported and added to the audio track). Adjusting the audio levels determines which audio will play louder than the other. The default setting plays the audio in both tracks at equal levels. The audio levels you select will play throughout the entire portion of your movie. By adjusting the audio levels, it could be set so that dialog in your video clip can be heard over the music that plays in the background. To adjust audio levels please use Audio Balance slider at the Timeline Main Video section. Drag the slider and use the pop-up tip to set necessary audio level.

Note: You can apply not one but several tracks. If you want to disable any audio track, check the respective window off clicking the icon. The active audio track is highlighted.

The Timeline tool in Mix Audio mode differs from Video Editing mode. We'd like to draw your attention to the fact that AVS Video Editor suggests you the opportunity to edit audio track you want to include in your project with advanced Audio Editor.

AVS Video Editor allows you to apply one or several audio tracks to your media file. For convenience of use you can change the sequence of audio reflection or resize them at the Timeline. It's possible to create one track using fragments from several tracks. For that use drag-and-drop method. Please note how the way of displaying the whole audio track differs from the trimmed one.

Whole Audio Track
Trimmed Audio Track

At each audio track reflected at the Timeline you can see envelope that depicts the volume control. You can regulate it differently according to your project's details. To add a control point to the envelope, double-click within the envelope line (where the mouse cursor changes to a hand) and drag the control point to the location where you want it. To move a point on the envelope, click and hold the point and drag it to a new location. Note that in case you move the point more than 20 pixels over the track line up or down, the point will be deleted. You can use this feature to smooth transition between two tracks. When the mouse cursor is located over a point, you will see it change from an arrow to a rhombus.

It's nice idea to use markers in file editing. It will help you to designate specific cursor positions to make editing process more effective.

To select a part of your project choose the area where you want to apply the desired audio, click the left mouse button and drag the slider along the navigation line. The selected area will be highlighted in gray.

AVS Video Editor suggest the opportunity to set markers at the Timeline for convenient audio editing. You can use markers for pointing necessary position or selecting the areas between two markers. Makers will be useful for fragmentary file editing also.

To add Marker:

1. Put the Timeline cursor at the position where you'd like to set marker
2. Click the Add button. The name of marker shown as Position:# will appear in the Markers List.

To delete Marker:

1. Select the marker you want to delete from Markers List.
2. Click the Delete button.
3. To delete all markers please use Delete All button.

To select the area between two Markers:

1. Select the start position marker from Markers List.
2. Click the Go To button.
3. Select the end position marker from Markers List.
4. Click the Select button. The selected are will be highlighted at the Timeline.