Listen to Music from a Laser-Cut Wood Record
Amanda Ghassaei first explored the possibility of using 3D printers to make a playable analog record, converting a digital audio file into a 3D model of a record that could be read by ordinary record players. Now, she's created playable records using a high-precision laser cutter, engraving on wood, acrylic, and paper. The records play audio with a bit-depth of 4-5, compared to 16-bit mp3 audio, and the sampling rate is reduced from 44kHz to 4.5kHz. Consequently, the music sounds distorted and garbled, but you can still make out melodies and lyrics. Ghassaei has posted instructions and the code for making your own laser-cut records on Instructables, provided you have access to a laser cutter!