go to Newground audio, inspect -> network -> media section -> files. go to the audio you want to download, then press play. back to the files, there will appear the audio file, there, you can right click it and open it in a new tab. now, depending on your browser, there will be three dots beside the audio seeker, there you will find options like download, playback, or whatever there is. there, you can download it, even if there is no download option anywhere in the Newground!
turn out ts is kinda useless since almost everyone is either in a county that blocks or using a chromebook