You could use the Javascript to Bubble plugin to write some simple Javascript code to do this. It’s not very no-code but it’s simple enough code. The code might look something like:
const speakers = ["speaker 1", "speaker 2", "speaker 3"]; // insert your speaker-names search expression between the square brackets
const texts = ["text 1", "text 2", "text 3"]; // insert your text search expression between the square brackets
const newList = [];
for (let i = 0; i < speakers.length; i++) {
newList.push(speakers[i] + ":" + texts[i]);
}
bubble_fn_concat(newList); // concat being the name you give as the first property of the JS to Bubble element
You could then use the JS to Bubble elements’s value list property as needed. best to add a small pause between running the js code and trying to use the output.