After some experiments with playing text to people around me, we decided that a huge factor in the perceptive quality of the voice comes from knowing who you ar

After some experiments with playing text to people around me, we decided that a huge factor in the perceptive quality of the voice comes from knowing who you are listening to before you get to listen, with the best perceived quality when the listener actually gets to see the picture of the voice's owner. Was it a deliberate choice to add those photographs for this reason?