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🔊Turn data into sound & back with Minimodem

October 15, 2023 @ 1:00 pm - 3:00 pm

Flyer with a photo of a tape player connected to a computer in the background, playing the text of Moby Dick onscreen. The text reads, "Turn data into sound & back with Minimodem / Iffy Books / Sunday, Oct 15th / 1–3 p.m." Next to the Iffy Books logo, there's an icon of a speaker making sound next to the numbers "00101"

In this workshop you’ll convert text data into audio using the program minimodem, then record the audio to a cassette tape. Then you’ll use minimodem to play back your text onscreen in real time. We’ll provide computers and tape decks, and everyone who signs up will get a few free cassette tapes.

We’ve been using Bell 202-style ASCII encoding at 100 baud (bits per second) because it works reliably and plays back at a comfortable reading speed. Using these encoding settings, a 60-minute cassette tape can store ~34 KB of data. If you want to record a specific text file to a cassette tape, we recommend bringing it on a USB drive.

We’ll have computers to share, but you’re welcome to bring a laptop too. Here’s a link to the zine we’ll use for the workshop (a work in progress).


This workshop is free, but donations are welcome.



October 15, 2023
1:00 pm - 3:00 pm


Iffy Books (319 N. 11th St.)
319 N. 11th St. #2I
Philadelphia, PA 19107 United States
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Iffy Books