The game is recorded on an iRiver 800. It has a 256MB storage.
The MP3 file is copied to my Mac, then loaded into Audacity. I apply the Noise Reduction filter (using a sample of the ambient room noise), then 6:1 compression, then either 6 or 12dB of amplification. The file is then exported as an MP3 file at 64kb bitrate.
The Masks of Nyarlathotep, Day of the Beast, and The Haunting voiceovers were put together using GarageBand with me recording the main audio track. The intro to Adventure! Serial 1 was pieced together from snippets of the pre-adventure hooks which were recorded and edited with Audacity, then placed into GarageBand. The final audio was then sent to iTunes.