If you are citing an interview that you conducted and recorded, and that recording is not publicly available, you could approach a citation for it in two ways.
Method One: Use a Global Note
One method would be to use a global note saying that the quotations in your essay are from the interview you conducted.
Note
All quotations from Jennifer Stein are from an interview I conducted on 10 October 2022.
Method Two: Create an Entry for the Interview
A second option would be to create a works-cited-list entry for the interview. The entry would only be for the interview itself—you would not cite the video or audio or need to include time stamps for it, since the recording is only accessible to you.
Clarke, Allison. Interview. Conducted by Joseph Lee, 5 August 2021.
If the interview you recorded was available somewhere online, then you would credit it the same way you would any other online video or audio: by including a works-cited-list entry for the recording and the website it’s hosted on and including timestamps in your in-text citations. For more information, check out our general post about citing interviews or our post about citing a video interview.