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>pVYaYald4 DUN Step-by-step instr a ty ad ee te eae gio a SIN TRIS i aes mo ) baie Eo ictions to build a laser speaker, St ee ee Ee Ne eee 20 UO. Paleiit ec. 19, ba/a watt mT AND ae ee history behind the il a Jesign. Es 8=66hPhllUmrr Ls 1) This is what water looks like when exposed to sound waves Sah Ag oe Ln yrs ae, One of the world's This spea with 1975 patent features a light-up r, in which LEDs flash in time the music. The brightness of e speaker so you can check if sound is too high without having ake up your neighbors to do it!
photo by Jordi Torrents vio Wikimedia Commons (CC WAS-3000, can generate up to 165 decibels (dB) of sound. In comparison, 130 dB is around the point at which a sound causes pain, and 150 id waves hat when
(used for military training) and even rocket launches. AUDIO INPUT blade scientis ENG aT n the early years of laser chnology, the power of a was measured in Gillettes the number of Gillette razor
; it could burn through! Today, ts in California are workina on er system that can produce
>gajoules of energy, meaning uld theoretically cut through 1.6 million razors. Clear your workspac rT 1U START NT al ea nd gather your You have enough materials to build
. epeaker, plus. hot voi! aqet BUILD STATS KEY COMPONENTS: mirror, speaker ariver, 'aser pointer SKILLS: wood assembly, electronics, music taste COMPLEXITY: low a gew extras:
a a ae ww ww 60 eleiiks diggraction as co a Petng 1: THE MAKER'S GUIDE TO THE NX LASER SDEAKED QhGe
@ 5 THINGS | Sound Visualizers
[c) BUILD | Part A: Start the Speaker Box
@ BUILD | Port B: Add the Electronics
@ LOOK INSIDE | Speaker Cone
@ Bun | Part C: Add the Arms
[28] BUILD | How to Line Up the Laser
bol speaker driver
* USB cable wireless board gqgaoo0aqao0aqao0a 009000000 go0000QG00 PTT ttt latex membrane screwdriver USB power adapter
(or'a device with 4 USB plug) Gr eth i ne ne oe ee Be eee ae
@ BUILD | How to Visualize Music
@ EXPERIMENT | Visualizing Sound BUILD | Troubleshooting
@ BEHIND THE DESIGN | Laser Speaker SCIENCE | Lasers and Diffraction
@ HISTORY | Wireless Communication
@ DESIGN CHALLENGE | Vibration Plate ALIZERS 1) FIRE A Rubens tube consists of a sealed tube with holes at the top, packed Ware ee DASE SAD TIS AR ALE DARage S S, MUA Le on fire. When sound waves pass through the tube, the flames escape through the holes, leaping to the beat! Uh. don't try this at home. The patterns lo a lot like thi R LIGHT, LASER BRIGHT iny Sonovision introduced the first laser light show technology. s directed at a reflective membrane stretched over a booming atterns over the ceiling and walls all in sync with the sound. ee just like your
= a laser speaker Fr Rm PFPAPPrPAP, U VIOLIN VIBES Way back in the 18th century, scientist Ernst Chladni inven way to visualize vibrations Chladni plates. Sprinkle a n sand, salt, or flour, then draw a violin bow against the ed:
The sand will rearrange itself into jazzy geometric ted a bold new etal plate with je of the plate satterns!
a Spectrograms visua and pitch of audio o oucan just d ound blips as und of ians even spectrograms, creat otherwise wou 1c FER Cv!
ize the loudness ver time. Which Oe ais oe SRLS ARLE ae elete unwanted if you're editing a photo. Some nv pictures onto ing sounds that Idn't exist!
OD. VAVIT RULE, FLE ADC Not all sour fancy soft:
Performanc is famou
| performance drumhea Raat a on a te id visualizers involve lasers, nare, or flammable gases. y Blue Man for its paint drumming s. The performers cover their Ap OSS ee On ea ee! gee ee fi sStdit U
| THIS LS THE SPEJ PLUS THI ne spedKel BOX
\KER'S BODY,
= PART THAT MOVES THE LASER BEAM. Fa UAT CTNce care THE ote x1 x6
(DON'T HAVE TO BE TIGHT) step +
g THE HOLES YoU use AFFECT THE LASER PATTERN, SEE PAGE 33 FOR HOW To SWITCH WAY ce) see, 6 Start the Speaker Box TURN TO FIT IN THE HOLES