You can import Audio from virtually any source;

 

If you have a better quality audio file than the one you used to make your notes then you can use Audio Replace:

 

We support the majority of file formats but by default we convert all imported audio into OPUS. We also support index marks from most digital recorders and transcriptions from Speechmatics:
 

1. Importing from the Sonocent Recorder App
2. Importing from a Digital Recorder
3. Importing from your computer
4. Importing from the cloud
5. Audio Replace
6. File Conversion
7. Supported File Formats
8. Index Marks