You can delete audio from a particular audio file on the transcription and editing page using the Ignore button. You can delete audio by doing the following:
After creating your audio or importing it to the transcription and editing page for editing, highlight the audio portion of the file you want to delete. Some icons will immediately appear at the top of the highlighted text. From the icons, click on the Ignore icon, which is the first one by your left.
Once you click on the Ignore icon, the highlighted will be deleted, and this will automatically delete the audio from the audio file.