Functional Wooden Record

wooden record

The fidelity is not particularly strong, but the tunes that Amanda Ghassaei etched into this wooden record are clearly identifiable. She used a laser cutter to do it:

These records were cut on an Epilog 120 Watt Legend EXT to a theoretical precision of 1200dpi (the kerf of the cut and some tricks I used to avoid crashing the laser cutter dropped the actual precision down by ~1/6).  The audio on the records has a bit depth between 4-5 (typical mp3 audio is 16 bit) and a sampling rate up to about 4.5kHz (mp3 is 44.1kHz).  So far I've successfully cut audio on wood (figs 1-2), acrylic (figs 3-4), and paper (figs 5-6), and I'm sure there are many more materials that would work.

Click on Continue reading to watch a video of the record playing.

(Video Link

Link -via Core77

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