1. Open the Secret APP, find the "My" option in the bottom navigation bar, and click Enter.

2. On the "My" page, find the "Speaker" option and click Enter.

3. On the Speaker page, find the recording history option, and then click Enter.

4. In the "Record History" page, you can see the list of all records, find the record to be deleted, and then click the button on the right of "..." to pop up the operation options.

5. In the operation options, select Delete to delete the recording.

It should be noted that the recording cannot be recovered after being deleted, so please be careful.