Robo-vibe

What sounds like a sex-toy is actually the reason these musicians haven’t been practicing. Marv is the MIDI actuated robotic vibraphone built by [Tim O’Keefe], [Michael McIntyre], and [Brock Roland]. Every key has a solenoid positioned below it. The beauty here is that other than four small holes used for mounting, the vibraphone hasn’t been altered at all. The solenoids are positioned on the outside edges of the instrument but there’s also a hidden secret. A set of dampers have been installed between the two ranks of keys. These are used to stop dampen ringing keys after the note should have stopped.

These guys have exhibited some beautiful craftsmanship. Check out the videos after the break and if you have the chance, see Marv in person at BarBot 2010. If you do attend that robot extravaganza don’t miss your chance to enjoy a breast-pump actuated cocktail.

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Old-time Music Player Is Brand New

This looks like a home entertainment center of yore but something’s not quite right. Where is the turntable used to play the music? It turns out that this Danforth Standard Digitrola is digital and doesn’t rely upon wax for an input. [Jonathan Danforth] built it as a show piece and it exhibits fine craftsmanship. A sound driver uses the brass horn and the acoustical chamber to put out what sounds like a fine quality end product.  Hear it playing some Daft Punk in the video after the break. The music comes from an MP3 board inside that has a 50W amplifier and reads the music from an SD card. The only control available to the listener is the brass knob which controls the volume.

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Modded C64 Eye Candy

“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]

Antique Jukebox Audio Streamer

Reader [Jimmy] sent us some info about his recently completed antique radio to audio streamer conversion. The electronics from the original radio were too far gone to repair, but he took the time to pull apart modern components to provide a polished looking finished project without losing the antique feel. We like it, but we are just suckers for that old time look. Check out his blog for more photos.

Guitar Hero As An Instrument Or Midi Controller

[youtube=http://www.youtube.com/watch?v=azfgasnWtW0]

[Robert] wrote a program using Max/MSP that lets him make music with his guitar hero controller. There’s another video after the break where he walks through the various features but here’s the gist of it. This works on Mac and Windows and allows a sort of ‘live play’ or midi mapping mode. In the midi mode each key can be configured to do your bidding. His example uses the pick bar to scroll through different samples and the green button the play them or the red button to stop.

The live mode us much more involved. In the software you choose the type of scale and the key you’d like to play in. This makes up for the controller’s lack of enough frets to make it a chromatic instrument and these settings can be adjust from the controller. There is an up-pick offset that makes the upward movement of the pick bar a different note than the downward movement. The motion control can also be used as an input. He demonstrates pitch bending and cutoff using that method.

This looks like a lot of fun. He needs to team up with [Joran] to add drums to the mix, forming a much more creative rock band than you can buy in the store.

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Amplifier Built Inside A 9v Battery

It’s pretty creative to use a 9v battery as an enclosure. That’s what [Osgeld] did when building this amplifier. There are several advantages; they’re easy to find, it keeps a bit of the dead battery out of the landfill, and this method provides a built-in connector for a 9v power source. In this case the circuit is built around a LM386 audio amplifier. It’s glued to the back of a potentiometer and wired up with the other components for a package smaller than a quarter. A stereo jack reside in the side of the battery case with a cable and alligator clips for connection with a speaker. Now the amp can be quickly connect to any 4-8 ohm speaker.

Robot Band Gives Us So Much To Make Fun Of

[Pat Metheny] has a robot armada backing him up when he performs on stage. They’re going on tour and he’s done an interview explaining his mechanical band. Like the auto-drummer, this setup uses multitudes of solenoids to play the percussion instruments, each getting commands from a computer. It’s pretty wicked to see him use his guitar as a marimba controller; it’s so responsive that he can tremolo and the solenoid follows in kind.

But there’s a lot more going on here. We love to see crazy facial hair from time-to-time, but this guy’s just got crazy hair! This easy listening isn’t exactly hair-band material but more like live-action Animusic. It’s also reminiscent of the automated orchestras at House on the Rock, an attraction you may remember reading about in American Gods. It’s fun to kid, but whether you like the music or not, he’s certainly talented when it comes to this genre.

[Thanks Grey]