Player for each layer

Hello,
I have to solve a problem with the player. I have a slide with several layers. Each layer has a sound (text-to-speech) added. When the first sound runs to the end, the progress bar of the layer is completed. I switch to a new layer, but the progress bar a see is the one from the first layer - completed. I cannot pause the sound of this layer or do anything else related, because of it. 
How do I get the media player to "follow" each layer of the slide, showing me the new progress bar each time I click on the new layer of the same slide?