Part 1: How to Edit a Voice Memo on iPhone Directly.In order to get the desired files with ease, learn more about how to edit voice memos on computer as alternative solution. But it only provides some basic editing features. Of course, you can take advantage of the default Voice Memos App on iPhone to clip the desired parts. How to edit a voice memo on iPhone, or even join multiple clips together? Moreover, during the recording process, you might have some interruptions. When you record a voice memo on iPhone, there might be some extra time at the beginning or the end.