I’m hoping to participate in the New England QSO Party ham radio contest again this year, and in preparing for it I’ve created a set of CW (Morse code) audio practice files. To make these, I pulled the official New England county abbreviations from the contest web site, pasted them into a spreadsheet, then repeated and randomized them a few times to get a nice long list. Finally, I used the excellent ebook2cw command-line application from Morse enthusiast Fabian Kurz (ham radio callsign DJ1YFK) to turn the text into a set of MP3 files.
In case anyone else wants to use these, I’m posting them here. If you need a version of this at a different speed, just drop me a line and I can easily generate it.