How can I replace an audio file?

From the audio page:

Click on Edit File to go into editing mode.

Click on the Replace audio button on top of the wave form to activate the file picker.

Drag and drop your .wav audio into the space on top of Drag & drop your new audio here OR

Click the teal button to browser for your audio using the file picker.

Click on Upload this file to start the upload.

The progress bar will proceed to 100% and then start transcoding the audio. After a few minutes, the audio waveform will load the new audio and you will see a success message like this:

If you drop in new audio and a message saying that a file already exists with that filename appears, it is because someone has already uploaded the same audio to the server:

Resound prevents you from uploading two audios with the same file name (ie: Crash-Cymbal-4.wav). Your options are either to go to Other audio page, or rename the audio to a different file name try again by clicking Upload a different file.