Noisy Super 8

posted Mar 10th 2010 11:25am by
filed under: digital audio hacks

[Matt Kemp] remade this super 8 film camera into a synthesizer. Inside you’ll find a light sensor pointed through the lens. This way, zooming, focusing, and pointing the lens elsewhere will change the sound. He also refit the original controls to monkey with the output. Turn your speakers up when you watch this, your co-workers will love you for it.

Modded C64 eye candy

posted Feb 8th 2010 3:00pm by
filed under: classic hacks, digital audio hacks

“Everyone needs a hobby,” they tell us. For the blogger mysteriously identified only as “R,” that hobby would be an almost fanatical nostalgia for the Commodore 64 computer.

At first we thought this was a fan community site, but apparently it’s all the work of a single person. [R] has tweaked, extended, repackaged and resurfaced this 1980’s icon in nearly every imaginable way. They tend to gloss over the technical aspects of these mods, but that’s okay – the C64 is such an exhaustively documented system now that the site dwells mainly on the aesthetics and meaning of these reborn devices.

The 64 has made an indelible impression on electronic music, and the machines are still sought after by collectors, composers and circuit-benders. [R] pays homage by housing these vintage systems in styles reminiscent of even vintage-er synthesizers. Any one of these would warrant a post here, yet there’s a whole collection to browse. Check it out!

[via Retro Thing]




FPGA keyboard synthesizer

posted Jan 1st 2010 12:00pm by
filed under: classic hacks, digital audio hacks

This synthesizer relies solely on an FPGA for key detection and sound synthesis. [Chris] and [Joe] built it for their final project at Cornell. The hardware implementation includes velocity sensing for the keys. While at rest, each key contacts a strip of copper foil. A matching strip of foil contacts the key when it is depressed. The velocity data is extrapolated by detecting when a key leaves the rest state and arrives at the depressed state. Sound synthesis is handled in hardware using the Karplus-Strong string synthesis method.  If you want to hear what it sounds like, they’ve posted a video (MP4) that shows off the creation. It sounds like an electric piano to us, so mission accomplished.

Subcycles: Multitouch music controller

posted Dec 22nd 2009 1:04pm by
filed under: digital audio hacks, multitouch hacks

Subcycles is a sound controller application that [Christian] is using on the third multitouch display that he built. The screen is a sheet of acrylic in an aluminum frame. The image is rear projected onto an area covered with Digiline dispersion film. As with other projects that use the Community Core Vision package, a PS3 eye camera captures the touch information.

This build does a great job of including the audience in what the musician on stage is doing. [Chris] points out that the sight of artists staring at laptops on stage is becoming more and more common. The ‘Minority Report’-like interface that Subcycles uses makes not just for interesting music, but for an added visual reinforcement to the live part of the performance.

[Thanks Mark]

Autonomous Bassline Generator

posted Dec 18th 2009 7:27am by
filed under: digital audio hacks

We’ve been watching this project ever since [Dann] emailed us about the first prototype back in September. This bassline generator has a lot of functions we like, such as an adjustable melody seed, light-sensitive controls, and device interactivity. Line up a row of them and they’ll sync up the beat, building layers of sound on top of each other (see the first video after the break).

The system is built around an ATtiny84, putting its pulse width modulation channels to work for sound generation. [Dann] has some kits available but he’s also posted everything – the schematics, PCB layout, and code – if you want to throw one together on a breadboard.

Read the rest of this entry »




Didgeridoo modded to include electronic manipulation

posted Nov 6th 2009 11:58am by
filed under: arduino hacks, digital audio hacks

didgeridoo-sound-synthedsizer

It’s not a bazooka, but this altered instrument makes it look like the player is toking off of some type of weapon. [Kyle] wanted to take the already mysterious sounds produced by a didgeridoo then capture and alter them electronically.

The physical build of this project is nothing short of beautiful. He’s mounted several curved control boards to the outside of the instrument. The controls feature six push buttons, five toggle switches, and six potentiometers that interface with an Arduino. The sound is picked up by the device then sent along with the switch settings to a computer via Bluetooth. The computer then works its magic to create the wicked audio effects heard in the video after the break.

His article, linked above, includes several diagrams detailing the synthesis process. They’re a little beyond our understanding but if you know what’s going on, please share your insight in the comments.

Read the rest of this entry »

Drone Lab brings the excitement of Hypnotoad home

posted Oct 22nd 2009 12:00pm by
filed under: digital audio hacks

Drone-lab-hypnotoad

[Peter] tipped us off about his new synthesizer kit, Drone Lab. It has the things we look for a synthesizer: knobs, inputs, switches, wacky sounds. You can get your soldering on with the kit version, or buy these pre-built. Peter bills this as an open source kit but we didn’t see board artwork, just a schematic.

What we didn’t expect is its ability to mimic the Hypnotoad. As seen in the video after the break, the glorious sounds of your favorite television show can now be created in your own home. If you’ve never seen an episode of the Hypnotoad (gasp!) we’ve got that covered after the break as well.

ALL GLORY TO THE HYPNOTOAD!

Update: PCB artwork has now been posted just below the schematic.

Read the rest of this entry »

The subway never sounded so good

posted Oct 7th 2009 1:00pm by
filed under: transportation hacks

Reader [Philippe] tipped us off about this video showing a set of subway steps being turned into a piano keyboard (english translation). The creators wanted to make taking the stairs rather than riding the escalator a bit more fun. They added pressure sensors to each step, then covered them with white and black keys to resemble a keyboard. When a passenger puts their weight on a step, the corresponding pitch is played out loud.

We may have lied in the title as this doesn’t really compare to hearing Josh Bell play for pocket change at your train stop. But coming across this setup on an otherwise mundane commute would really brighten up our day.




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