Just like human singers, adding a breath at the beginning of a sentence usually brings much natural result, especially for a long sentence or high notes.
The first tab of AI parameters is breath, where you can add a breath at the beginning of each line.
Click on the dark purple area to add a breath.
You can adjust the duration by dragging on the left edge of a breath note.
Make it louder?
Sometimes, the breath is too weak to be heard.
If you want to make it louder, you can open the “energy” tab from the emotion parameter panel, then bring up the energy of the breath part.
Ghost breath?
Sometimes, AI will generate a ghost breathing sounds in the gaps between sentences.
To avoid this, you can use the energy envelope to mute them.