The "Pseudo Stereo" effect may be used to add "spaciousness" to either mono or stereo sounds. The effect can only be applied to 2 channel tracks, so mono (1 channel) tracks need to be made into 2 channel tracks first.
The quickest way to convert a 1 channel track to a 2 channel track before using the Pseudo Stereo effect is:
- Add a new mono track ("Tracks menu > Add New > Audio Track" or shift+Ctrl+N),
- If necessary, drag the new track so that it is directly under the track that you want to convert
- Click on the name of the track that you want to convert, and from the drop down menu select "Make Stereo Track"
You can then use the Pseudo Stereo effect.
"Select source channel:" needs to be set to "Left (upper)" as that is the channel that has the audio in it.