The Voice Memo app on iPhone has the built-in feature to allow users trim down voice recordings right on the iPhone. Sometimes however we may want to do the opposite, combing two or more voice memos or sound recordings into one file. There are basically two ways you can achieve that. You can export the recordings to a computer, then merge the iPhone voice memos on your PC or Mac.
Alternatively you can download an audio editing app for iOS to join the voice memos together on iPhone. Hokusai is a free audio editor app that can mix or merge multiple audio clips, sound tracks on iPhone. Here’s how it works.
Merge voice memos on iPhone
Run the iPhone Voice Memos app, choose the sound recording, tap Share, then save a copy to the Files app on your iPhone local storage. Repeat the steps to export multiple voice memos or audio recordings from the recorder app to the stock Files app.
Download the free audio editor app for iPhone. Then create a new project in the audio tool. Tap the Import button at the bottom to browse to the voice memos saved in the Files app and add the first voice memo or audio recording track to the audio editor. Then move the playhead to the end point over the horizontal, time-based sound wave of the first audio track. After that go to import the second voice memo or sound recording from Files app to the audio editor. If you need to add extra sound tracks, make sure to drag and drop the playhead to the end of the previous audio.
Optionally you can also play any added sound tracks and trim the audio or music to remove the unnecessary audio segment before you merge them.
Tap the spanner icon at the top right section, select Share Audio from the drop-down menu, save the merged audio to the Files app on your iPhone, any cloud service you use. You can also share the merge music/audio via message, mail, chat apps and more.