Bitbuf Delivers Some Of The Best Chiptune Effects Around

December 23, 2011 by Mike Szczys 32 Comments

Wow. And furthermore, WOW! Just looking at that clean prototype you know that a lot of work has gone into the project, but when you hear this chiptune MIDI device you’ll really be impressed. We know what you’re thinking, but really, you’ve got to hear this to appreciate the quality [Linus Akesson] achieved in this synthesizer. You can catch it after the break.

He does a great job of showing off the different waveforms that can be produced by the ATmega88 on this board. But there’s much more. It also serves as a 16 frame, 16 channel sequencer for creating and layering your own loops.

He mentions that eight oscillators are used for the waveform generation. We don’t see hardware for this on the board. Either we’re missing it, or these oscillators are being created with software? If you have an idea of how this works please clue us in by leaving a comment.

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AVR Chiptune Project Turns This Simple Code Into Music

October 3, 2011 by Mike Szczys 21 Comments

[Mark] had seen a few examples of algorithmic music generation that takes some simple code and produces complex-sounding results. Apparently it’s possible to pipe the output of code like this directly to audio devices on a Linux box, but [Mark] decided to go a different direction. His project lets you play simple algorithms as audio using AVR microcontrollers.

Now the code work for this is very simple, but he hardware implementation is where things get interesting. Ostensibly, [Mark] didn’t have the components available to build a filter to use PWM as an audio signal. Being that he’s a ham operator, he grabbed some radio equipment he had on hand and whipped up an alternative. He’s feeding the PWM from an Arduino into the voltage controlled oscillator on a board meant for high-altitude balloon telemetry. The signal broadcast by this board is then picked up by his radio receiver, and played on some speakers.

Rube-Goldberg contraptions aside, the effect is pretty interesting, as you can hear in the latter half of the video clip which we’ve embedded after the jump.

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Portable SID Plays Chiptunes

June 3, 2011 by Brian Benchoff 19 Comments

[Markus] on the DangerousPrototypes forum came up with a great little SID player.

The SID was (is?) the awesome sound generation chip inside the Commodore 64, and along with Game Boys and NESs laid the foundation for the chiptune scene. We’re happy to finally see a small SID player that doesn’t resort to SID emulation or a relatively huge MIDIbox.

The SID player itself is a shield on a CUI32 PIC dev board. The PIC32 emulates the 6510 and 6526 CPU and CIA chips found in the Commodore 64. A small USB memory stick stores the High Voltage SID Collection and the file system is navigated with an OLED screen. [Markus] says that the player draws 370 mA, so he runs it off a small wall wart. Still, we’re wondering if it’s possible to run this off of an SD card with a SwinSID so power draw can be reduced and a fully portable SID player can be realized.

We’ve got a touch of nostalgia for chiptune and demoscene music right now, so we’re going to listen to some ~~[Nelly Furtado]~~ [Janne Suni] right now, but you can check out the video demo [Markus] posted after the break.
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Chiptune Instrument From NES

October 3, 2010 by Mike Szczys 12 Comments

[Jarek Lupinski] wanted an instrument that would let him play chiptunes live, without a need for pre-programming a cartridge for playback during a concert. His preferred hardware is an original Nintendo Entertainment System because of its familiar nostalgic sound. After picking up a lot of 5 broken NES units he set out to build a midi-compliant device.

The five NES units he bought had nothing wrong with them other than the 70-pin cartridge connector. He fixed them all, then de-populated the board on one and tried to build out a circuit on a breadboard. After much trial and error, forum searching, and conversations with others who were familiar with the hardware he got the circuit working. He’s posted a schematic and had a board fabricated which takes the transplanted chips and transforms them into an instrument. Check out the test notes being played by an Arduino Mega after the break.

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YM2149 Gets New Life

August 15, 2010 by Jakob Griffith 5 Comments

[MicroMinded] took us way back to our childhoods with his experiments and subsequent YMstream music player based on the Yamaha YM2149 sound generator used in old arcade systems, computers, and even phones (think chiptune). This reminds us of the Chipophone, only this time the sound is achieved from ICs used back in the day, rather than MCU waveforms.

There is still some work to be done to make the music player have a bit more functionality, but for now source is available if you want to make your own. Of course you might come across a small problem; finding an SSG is a tad bit more difficult than say, an Arduino. If a good resource is found, please share it in the comments!

[Thank you Andrew Kretschmer for sending in the chiptune mp3s]

Blip Festival: Reformat The Planet

August 18, 2008 by Eliot 7 Comments

Pitchfork.tv is showing the documentary Blip Festival: Reformat the Planet for one week only. The Blip Festival is an annual chiptune event in New York City featuring musicians who use video game consoles as part of their production. The documentary has a ton of artist interviews and music from all across the spectrum. Most of the initial featured artists are using the Game Boy LSDJ tracker cartridge. [Nullsleep] has put together a tutorial for the device. You’ll see a lot of other old hardware and hear discussions of coveted mods like adding backlights as well. [Mark Denardo] is shown using a PSP as part of his performance. Other people are using software like Fruity Loops to build tracks with Nintendo samples. Honestly, our favorite part was a clip of the loud objects doing a live soldering circuit bending performance on top of an overhead projector at the Bent Festival. Although not musical, Element Labs’ Versa TILE makes a fairly mesmerizing backdrop throughout the film too. You can find links to all the featured artists on last year’s festival page.

Blip Festival 2008 happens December 4-6 in Brooklyn, NY.

[via Waxy]

[photo: ziggy fresh]

Game Boy Foot Controller Demo

June 15, 2008 by Eliot 2 Comments

[youtube=http://www.youtube.com/watch?v=lQdqudTzyBs&hl=en&rel=0&color1=0x3a3a3a&color2=0x999999]
This is a video of [Joey Mariano] from animal style demoing his Game Boy pedal board. He added a D15 port to the back of the Game Boy, which is wired to each of the 8 buttons. The port is connected to a breakout box for 8 piano sustain pedals. The box also provides power to the Game Boy. The Game Boy is running the Nanoloop step sequencer. If you’re wondering about the guitar sound, he’s probably using an 8-Bit Fuzz pedal.

[via GetLoFi]