@Lunacorva

Hi,

Some good questions here.

Could you please add information about your computer and the software (with version) to your signature as you were asked to do previously?

If you want the audio sound of an airport terminal, you need to get the background ambience. If you have credits left in Magix Hub for Stock Media, search for "airport terminal" and you'll find a few.

If you just want to make your audio sound like a big hall or big tiled bathroom, then you can try applying reverb to it (or to your imported airport ambience). Make sure to have audio and video on separate tracks in VPX. Assuming that the audio that you want to adjust is on track 2, open the Mixer, click on FX for track 2, select and turn on Reverb, Aux, and try the various presets, like "Aux Hall." However, this will affect everything on track 2, so it's not a good method.

However, is that the effect that you are looking for?

Now, for the fade in part. There are a few ways to do this.

Method 1 - Duplicating audio and applying reverb

1. Ungroup the audio.
2. Duplicate the audio by holding down Ctrl and dragging the audio straight down to the track below.
3. Select the first audio object, go to Effects, Audio effects, General. Click on Echo/Reverb and select the reverb that you want. This affects only that object.
4. When you play back, you get a mix of the audio with reverb (track 2) and without reverb (track 3).
5. Fade in using the normal fade handle on this audio object, the one with the reverb. You can trim the object if you want to the fade to start later, or you can add an object volume curve and adjust the volume.
6. If you want, you can turn off, or trim, or use an inverse volume curve on the other audio object, the one with no reverb.

Method 2 - Using Mixer and AUX1 curve

1. No need to duplicate the audio. Select the audio and go to Effects, Audio effects, General.
2. Open the Mixer.
3. Move the first Sends/Aux slider of track 2 fully to the right to open the Aux1 FX strip at the right of the Mixer.
4. Click on FX in the FX strip and you'll see that Reverb is on by default. Open it and change it to whatever you want. Playing back gives you the full effect.
5. Now for the fade in part. Move the Sends/Aux slider completely back to the left. Playing back gives you the original sound, no reverb.
6. With the audio objects still selected, move the playback marker to where you want the reverb to start ramping in. In Audio Effects, drag the AUX1 slider to 0. The AUX1 effect will now show in the keyframe area.
7. Place a keyframe at this point by clicking on the +kf button.
8. Move the playback marker to where you want the full reverb effect.
9. Drag the AUX1 slider fully to the right, to 100. Another keyframe will be placed automatically. You can add more as you wish.
10. Play it back. This should give you no reverb, then a gradual increase of reverb.

Click on the blue FX button to open the FX below. This is now always linked to AUX1.

Final result:

This method has effects on the FX strip that can be applied anywhere by activating the AUX1 for any object on any track.

John CB