If you are reviewing a word document, you may wish to insert audio comments. You can do this by using a combination of the windows 10 voice recorder and word. An example is shown in the video below.
Please do keep in mind that every recording will increase the file size of the word document significantly. To prevent that, we recommend that instead of embedding audio files directly, you instead upload the comment recordings to your onedrive folder, and then insert a link to there.