music

456 Articles

A Baby Named DJ

June 19, 2019 by 8 Comments

Some of us are guilty of picking up questionable hardware from garage sales, fleamarkets, and well-meaning relatives. There is a balance between turning down a good investment and hoarding, and if we figure out how to tell the difference you will be the first to know. [Clem Mayer] may start on the side of unwise acquisition, but he pushes a broken fetal detector into the realm of awesome by converting it to an analog synthesizer, born to headline at an Eastern European dance party.

He starts with a basic teardown, and we get to see how old hardware was serviceable with only two standard screws. It is a good thing too, because the nickel-cadmium batteries are older than some of you and they are in need of replacement. New nickel-metal hydride batteries got it up and running but [Clem] does not have a baby bump so its functionality turned to Pink Floyd era synthesizer circuit bending. Circuit bending involves modifying a circuit for sound it was not intended to make.

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Hack My Wired Heart

June 12, 2019 by 3 Comments

Liner notes? Passé. In Berlin, the release of a special edition synth-wave record came with an accompanying experimental synthesizer called Wired Heart.

At the core of this adorable heart-shaped synth, designed by music technology enthusiast [tobi tubbutec], is the classic 74HCT14 chip with six Schmitt trigger oscillators. The bright red PCB has eight gold touch and humidity sensing pads that activate and modulate these oscillators. As well as changing the sounds by playing with pressure and conductive liquids you can use the six sets of header pins on board to plug in your own components for noisy experimentation. Wired Heart ships with LEDs, photoresistors and a potentiometer, but we’ve also plugged our own DIY fabric pressure sensors into this synth to make some excellent electronic sounds.

In the Hackaday.io post linked above, [tobi tubbutec] walks us through a number of the circuit design decisions he made while prototyping his “cardiotronic human-touch hexoscillatric stereo esoteric snythespacer”. We enjoyed his creative and sometimes unconventional designs, from his inclusion of non-functioning traces for aesthetic reasons to his chosen method of hard syncing — injecting a small pulse of one oscillator into the other. If you want to examine his layout in more detail, [tobi tubbutec] has helpfully included the KiCad schematic file in his write up.

This adorable, hackable synth caught our eye at this year’s SuperBooth — an annual indie electronic music conference in Berlin that’s well worth checking out if odd noises and handmade electronics are your thing —  but it’s recently been listed on Tindie too. To listen to the upbeat synth-wave record Wired Heart originally shipped with, visit the artist Hyboid’s bandcamp.

If you’re interested in experimental musical instruments and synthy chip tune you’ll also love [jarek319]’s Sega Genesis synthesiser.

Check out a demo of the Wired Heart synth in the video after the break.

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Please Meet ‘Capability Inquiry’, Part Of The MIDI 2.0 Standard

May 28, 2019 by 23 Comments

It may have passed you by in the news, but the MIDI Manufacturers Association (MMA) has recently unveiled more details about the upcoming MIDI 2.0 standard. Previously we covered the prototyping phase start of this new standard. The original Musical Instrument Digital Interface standard was revealed all the way back in August of 1983, as a cooperation between companies including Moog Music, Roland, Yamaha, Korg, Kawai and others. It was the first universal interface that allowed one to connect and control all kinds of musical instruments.

Over the years, MIDI has seen use with the composing of music, allowing instruments to be controlled by a computer system and to easily share compositions between composers. Before MIDI such kind of control was limited to a number of proprietary interfaces, with limited functionality.

The MMA lists the key features of MIDI 2.0 as: Bidirectional, Backwards Compatible, and the enhancing of MIDI 1.0 where possible. Using a new technology called MIDI Capability Inquiry (MIDI-CI), a MIDI 2.0 device can exchange feature profiles and more with other 2.0 devices. 1.0 is the fallback if MIDI-CI finds no new functionality. MIDI-CI-based configuration can allow 2.0 devices to automatically configure themselves for their environment.

Suffice it to say, MIDI 2.0 is a far cry from the original MIDI standard. By transforming MIDI into a more versatile, bidirectional protocol, it opens new ways in which it can be used to tie musical devices and related together. It opens the possibility of even more creative hacks, many of which were featured on Hackaday already. What will you make with MIDI 2.0?

See a brief demonstration of this feature of MIDI 2.0 in the below video:

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Creating A Sonic Landscape With Glitching CD Player

May 27, 2019 by 5 Comments

CDs were a great advancement in audio quality when they were first put on the market. There’s no vinyl-style degradation of the medium if it’s played over and over, and there’s no risk of turning them into a giant pile of ribbon while rewinding like a cassette tape. The one downside was that if you were to take them on the move you needed special hardware and software to prevent the inevitable skipping. If you look at the skipping not as a downside, though, but as a way to produce interesting music, you might end up with a pretty unique piece of hardware.

[Dmitry] is known for his interesting art installations, and the latest one uses parts from three 1988 Sony D2 CD players that have been reassembled in order to take advantage of a skipping and glitching CD. The modified equipment is able to play during pause or rewind thanks to a processor modification, and can also change the rotational speed of the disc. There are other pieces of hardware included for more fine control of glitching and skipping of the audio being read off of the CD.

The new device functions as a working musical instrument, although [Dmitry] says that it is more useful for deconstructing the information stored on the disc, and exploring the medium itself. Of course if you have enough motivation, you can find sounds from almost anywhere on (or in) the planet too.

By The Numbers: Which Rapper’s Rhymes Are The Freshest?

May 21, 2019 by 18 Comments

Beats and rhymes are life in the world of hip-hop. A rapper’s ability to seamlessly merge the two is the mark of a master wordsmith. Ranking a rapper’s contributions to hip-hop will forever remain subjective, however [Matt] sought to apply a more quantitative approach to the matter. He created an interactive data set containing all the lyrics from over 150 rappers in order to determine which rapper’s vocabulary was the largest. Now everyone can know definitively which rapper’s rhymes truly are “the freshest”.

The study encompasses hip-hop artists from the last thirty years, pitting recent hit-makers like Lil Uzi Vert against veteran artists like KRS-One. To ensure everything is on even playing field [Matt] limited the study to the first 35,000 lyrics of each artist including any material on a mixtape, EP, or full album release. Rappers’ vocabulary was then plotted according to the total number of unique words found in their lyrics (i.e.: “shorty” and the alternative spelling “shawty” were each considered to be unique words). Oddly enough, there were some notable exclusions from the list as artists like Chance the Rapper, Queen Latifah, and The Notorious B.I.G’s discography did not exceed the 35,000 lyrics mark.

When digging into the data, there was a downward trend in the vocabulary used amongst popular artists of the last decade. [Matt] attributed this trend to the fact that many of these artists have modeled their music to reflect the pop/rock music structure that makes use of simple, repetitive choruses. While others may attribute this downward trend to a general lack of talent when it comes to lyricism, however, it should be noted that the economics of music streaming platforms have had an effect on the average song length. Though whatever era of hip-hop you subscribe to, it is always interesting to see where your favorite emcees rank.

 

The Rhysonic Wheel Automates Live Music

May 18, 2019 by 10 Comments

Making waves in the music world is getting harder. Almost anyone who has access to the internet also has access to a few guitars and maybe knows a drummer or can program a drum machine. With all that competition it can be difficult to stand out. Rather than go with a typical band setup or self-producing mediocre rap tracks, though, you could build your own unique musical instrument from scratch and use it to make your music, and your live performances, one-of-a-kind.

[Pete O’Connell]’s instrument is known as the Rhysonic Wheel, which he created over the course of a year in his garage. The device consists of several wheels, all driven at the same speed and with a common shaft. At different locations on each of the wheels, there are pieces of either metal or rubber attached to strings. The metal and rubber bits fling around and can strike various other instruments at specified intervals. [Pete O’Connell] uses them to hit a series of percussion instruments, a set of bells, and even to play a guitar later on in the performance.

While it looks somewhat dangerous, we think that it adds a level of excitement to an already talented musical performance. After all, in skilled hands, any number of things can be used to create an engaging and unparalleled musical performance with all kinds of sounds most of us have never heard before.

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MIDI Synthesizer From A Sega Genesis

May 15, 2019 by 14 Comments

[Aidan] is really into FM synthesis chips for creating audio, and one of the most interesting chips from that era is found on the Sega Genesis. Anyone involved in the console wars at that time certainly remembers the classic, unique sound that those video game systems were able to produce, so [Aidan] built a device using a sound chip from a Genesis to play any piece of music from any game. The second iteration of that project, though, is able to use those same sound files as a MIDI synthesizer.

The interesting aspect of these chips is how they use registers to change the audio output. Essentially, there is a complicated register map (one section of his write-up is simply called “Register Hell”) that can be called in order to access the various types of effects one would normally see on a synthesizer. It’s not straightforward at all, though, and got even more complicated once [Aidan] started adding MIDI functionality to it as well. Once he finished sifting through the Sega Genesis technical manuals and a bunch of registers, though, he had a unique synthesizer working that doesn’t sound like anything you’ve ever heard, unless you’ve ever played a Genesis.

If you’d like to check out his first project, the MegaBlaster, which plays the sound files of the old Genesis games directly, we featured that a while ago. Keep in mind though that his latest project isn’t just an updated MegaBlaster, though. He built this entire thing from the ground up.

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