Import your sounds and your speech segments (after installing the below mentioned plug-in) , order them from top to bottom and try this tool:
https://forum.audacityteam.org/t/arrange-your-tracks-with-chain-it-up-ny/26201/1
Import your sounds and your speech segments (after installing the below mentioned plug-in) , order them from top to bottom and try this tool:
https://forum.audacityteam.org/t/arrange-your-tracks-with-chain-it-up-ny/26201/1