Tag Archives: music

Raspberry Pi Looper-Synth-Drum…thing

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To replace his iPad for live performance, Colorado-based musician Toby Hendricks built a looper, complete with an impressive internal sound library, all running on a Raspberry Pi.

Raspberry Pi Looper/synth/drum thing

Check out the guts here: https://youtu.be/mCOHFyI3Eoo My first venture into raspberry pi stuff. Running a custom pure data patch I’ve been working on for a couple years on a Raspberry Pi 3. This project took a couple months and I’m still tweaking stuff here and there but it’s pretty much complete, it even survived it’s first live show!

Toby’s build is a pretty mean piece of kit, as this video attests. Not only does it have a multitude of uses, but the final build is beautiful. Do make sure to watch to the end of the video for a wonderful demonstration of the kit.

Inside the Raspberry Pi looper

Alongside the Raspberry Pi and Behringer U-Control sound card, Toby used Pure Data, a multimedia visual programming language, and a Teensy 3.6 processor to complete the build. Together, these allow for playback of a plethora of sounds, which can either be internally stored, or externally introduced via audio connectors along the back.

This guy is finally taking shape. DIY looper/fx box/sample player/synth. #teensy #arduino #raspberrypi #puredata

98 Likes, 6 Comments – otem rellik (@otem_rellik) on Instagram: “This guy is finally taking shape. DIY looper/fx box/sample player/synth. #teensy #arduino…”

Delay, reverb, distortion, and more are controlled by sliders along one side, while pre-installed effects are selected and played via some rather beautiful SparkFun buttons on the other. Loop buttons, volume controls, and a repurposed Nintendo DS screen complete the interface.

Raspberry Pi Looper Guts

Thought I’d do a quick overview of the guts of my pi project. Seems like many folks have been interested in seeing what the internals look like.

Code for the looper can be found on Toby’s GitHub here. Make sure to continue to follow him via YouTube and Instagram for updates on the build, including these fancy new buttons.

Casting my own urethane knobs and drum pads from 3D printed molds! #3dprinted #urethanecasting #diy

61 Likes, 4 Comments – otem rellik (@otem_rellik) on Instagram: “Casting my own urethane knobs and drum pads from 3D printed molds! #3dprinted #urethanecasting #diy”

I got the music in me

If you want to get musical with a Raspberry Pi, but the thought of recreating Toby’s build is a little daunting, never fear! Our free GPIO Music Box resource will help get you started. And projects such as Mike Horne’s fabulous Raspberry Pi music box should help inspire you to take your build further.

Raspberry Pi Looper post image of Mike Horne's music box

Mike’s music box boasts wonderful flashy buttons and turny knobs for ultimate musical satisfaction!

If you use a Raspberry Pi in any sort of musical adventure, be sure to share your project in the comments below!

 

 

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Making sweet, sweet music with pisound

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I’d say I am a passable guitarist. Ever since I learnt about the existence of the Raspberry Pi in 2012, I’ve wondered how I could use one as a guitar effects unit. Unfortunately, I’m also quite lazy and have therefore done precisely nothing to make one. Now, though, I no longer have to beat myself up about this. Thanks to the pisound board from Blokas, musicians can connect all manner of audio gear to their Raspberry Pi, bringing their projects to a whole new level. Essentially, it transforms your Pi into a complete audio workstation! What musician wouldn’t want a piece of that?

pisound: a soundcard HAT for the Raspberry Pi

Raspberry Pi with pisound attached

The pisound in situ: do those dials go all the way to eleven?

pisound is a HAT for the Raspberry Pi 3 which acts as a souped-up sound card. It allows you to send and receive audio signals from its jacks, and send MIDI input/output signals to compatible devices. It features two 6mm in/out jacks, two standard DIN-5 MIDI in/out sockets, potentiometers for volume and gain, and ‘The Button’ (with emphatic capitals) for activating audio manipulation patches. Following an incredibly successful Indiegogo campaign, the pisound team is preparing the board for sale later in the year.

Setting the board up was simple, thanks to the excellent documentation on the pisound site. First, I mounted the board on my Raspberry Pi’s GPIO pins and secured it with the supplied screws. Next, I ran one script in a terminal window on a fresh installation of Raspbian, which downloaded, installed, and set up all the software I needed to get going. All I had to do after that was connect my instruments and get to work creating patches for Pure Data, a popular visual programming interface for manipulating media streams.

pisound with instruments and computer

Image from Blokas

Get creative with pisound!

During my testing, I created some simple fuzz, delay, and tremolo guitar effects. The possibilities, though, are as broad as your imagination. I’ve come up with some ideas to inspire you:

  • You could create a web interface for the guitar effects, accessible over a local network on a smartphone or tablet.
  • How about controlling an interactive light show or projected visualisation on stage using the audio characteristics of the guitar signal?
  • Channel your inner Matt Bellamy and rig up some MIDI hardware on your guitar to trigger loops and samples while you play.
  • Use a tilt switch to increase the intensity of an effect when the angle of the guitar’s neck is changed (imagine you’re really going for it during a solo).
  • You could even use the audio input stream as a base for generating other non-audio results.

pisound – Audio & MIDI Interface for your Raspberry Pi

Indiegogo Campaign: https://igg.me/at/pisound More Info: http://www.blokas.io Sounds by Sarukas: http://bit.ly/2myN8lf

Now I have had a taste of what this incredible little board can do, I’m very excited to see what new things it will enable me to do as a performer. It’s compact and practical, too: as the entire thing is about the size of a standard guitar pedal, I could embed it into one of my guitars if I wanted to. Alternatively, I could get creative and design a custom enclosure for it.

Using Sonic Pi with pisound

Community favourite Sonic Pi will also support the board very soon, as Sam Aaron and Ben Smith ably demonstrated at our fifth birthday party celebrations. This means you don’t even need to be able to play an instrument to make something awesome with this clever little HAT.

The Future of @Sonic_Pi with Sam Aaron & Ben Smith at #PiParty

Uploaded by Alan O’Donohoe on 2017-03-05.

I’m incredibly impressed with the hardware and the support on the pisound website. It’s going to be my go-to HAT for advanced audio projects, and, when it finally launches later this year, I’ll have all the motivation I need to create the guitar effects unit I’ve always wanted.

Find out more about pisound over at the Blokas website, and take a deeper look at the tech specs and other information over at the pisound documentation site.

Disclaimer: I am personally a backer of the Indiegogo campaign, and Blokas very kindly supplied a beta board for this review.

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Tableau: a generative music album based on the Sense HAT

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Multi-talented maker Giorgio Sancristoforo has used a Raspberry Pi and Sense HAT to create Tableau, a generative music album. It’s an innovative idea: the music constantly evolves as it reacts to environmental stimuli like atmospheric pressure, humidity, and temperature.

Tableau Generative Album

“There is no doubt that, as music is removed by the phonographrecord from the realm of live production and from the imperative of artistic activity and becomes petrified, it absorbs into itself, in this process of petrification, the very life that would otherwise vanish.”

Creating generative music

“I’ve been dreaming about using portable microcomputers to create a generative music album,” explains Giorgio. “Now my dream is finally a reality: this is my first portable generative LP (PGLP)”. Tableau uses both a Raspberry Pi 2 and a Sense HAT: the HAT provides the data for the album’s musical evolution via its range of onboard sensors.

Image of Tableau generative music device with Sense HAT illuminated

Photo credit: Giorgio Sancristoforo

The Sense HAT was originally designed for use aboard the International Space Station (ISS) as part of the ongoing Astro Pi challenge. It has, however, become a staple within the Raspberry Pi maker community. This is partly thanks to the myriad of possibilities offered by its five onboard sensors, five-button joystick, and 8 × 8 LED matrix.

Image of Tableau generative music device with Sense HAT illuminated

Photo credit: Giorgio Sancristoforo

Limited edition

The final release of Tableau consists of a limited edition of fifty PGLPs: each is set up to begin playing immediately power is connected, and the music will continue to evolve indefinitely. “Instead of being reproduced as on a CD or in an MP3 file, the music is spontaneously generated and arranged while you are listening to it,” Giorgio explains on his website. “It never sounds the same. Tableau creates an almost endless number of mixes of the LP (4 × 12 factorial). Each time you will listen, the music will be different, and it will keep on evolving until you switch the power off.”

Image of Tableau generative music device with Sense HAT illuminated

Photo credit: Giorgio Sancristoforo

Experiment with the Sense HAT

What really interests us is how the sound of Tableau might alter in different locations. Would it sound different in Cambridge as opposed to the deserts of Mexico? What about Antarctica versus the ISS?

If Giorgio’s project has piqued your interest, why not try using our free data logging resource for the Sense HAT? You can use it to collect information from the HAT’s onboard sensors and create your own projects. How about collecting data over a year, and transforming this into your own works of art?

Even if you don’t have access to the Sense HAT, you can experience it via the Sense HAT desktop emulator. This is a great solution if you want to work on Sense HAT-based projects in the classroom, as it reduces the amount of hardware you need.

If you’ve already built a project using the Sense HAT, make sure to share it in the comments below. We would love to see what you have been making!

 

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Tough Pi-ano

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The Tough Pi-ano needs to live up to its name as a rugged, resilient instrument for a very good reason: kids.

Tough Pi-ano

Brian ’24 Hour Engineer’ McEvoy made the Tough Pi-ano as a gift to his aunt and uncle, for use in their centre for children with learning and developmental disabilities such as autism and Down’s syndrome. This easily accessible device uses heavy-duty arcade buttons and has a smooth, solid wood body with no sharp corners.

24 Hour Engineer Presents the Tough Pi-ano

24 Hour Engineer is a channel to showcase the things I’ve built. Instructions for the Tough Pi-ano can be found at my website, 24HourEngineer.com and searcing for “Tough Pi-ano.” http://www.24hourengineer.com/search?q=%22Tough+PiAno%22&max-results=20&by-date=true

The Pi-ano has four octaves of buttons, each controlled by a Raspberry Pi Zero. Each Zero is connected to a homebrew resistor board; this board, in turn, is connected to the switches that control the arcade buttons.

Tough Pi-ano

The Tough Pi-ano is designed specifically for musical therapy, so it has a clean and uncomplicated design. It has none of the switches and sliders you’d usually expect to find on an electronic keyboard.

Tough Pi-ano

The simple body, with its resilient keys, allows the Tough Pi-ano to stand up to lots of vigorous playing and forceful treatment, providing an excellent resource for the centre.

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The Visual Theremin

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The theremin.

To some, it’s the instrument that reminds us of one of popular culture’s most famous theme songs. To others, it’s the confusing flailing of arms to create music. And to others still, it sounds like a medicine or a small rodent.

Theremin plays the theremin

“Honey, can you pass me a tube of Theremin? The theremin bit me and I think it might be infected.”

In order to help their visitors better understand the origin of the theremin, Australia’s MAAS Powerhouse Museum built an interactive exhibit, allowing visitors to get their hands on, or rather get their hands a few inches above, this unique instrument.

MAAS Powerhouse Theremin Raspberry Pi

As advocates of learning by doing, the team didn’t simply want to let their museumgoers hear the theremin. They wanted them to see it too. So to accomplish this task, they chose a BitScope Blade Uno, along with a Raspberry Pi, BitScope, and LCD monitor.

MAAS Theremin Raspberry Pi

The Raspberry Pi and BitScope are left on display so visitors may better understand how the exhibit works.

BitScope go into a deeper explanation of how the entire exhibit fits together on their website:

The Raspberry Pi, powered and mounted on the BitScope Blade Uno, provided the computing platform to drive the display (via HDMI), and it also ran the BitScope application.

The BitScope itself, also mounted on the Blade, was connected (via USB) to the Raspberry Pi and powered by the Blade.

The theremin output was connected via splitters (so they could also be connected to a sound amplifier) and BNC terminated coaxial cables to the analogue inputs via a BitScope probe adapter.

We’d love to see a video of the MAAS theremin in action so if you’re reading this, MAAS, please send us a video. Until then, have this:

Sheldon’s Theremin

Sheldon playing the star trek soundtrack on his theremin

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The Nest: hidden music atop Table Mountain

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Located at the lookout at the summit of Table Mountain’s Kloof Corner hiking route, The Nest was a beautifully crafted replica of a rock that sat snugly alongside the trail. It would have been easy to pass it without noticing the enhancements: the USB port, headphone socket, and microphone. After all, what would such things be doing by a mountain trail in Cape Town, South Africa?

bateleur the nest

However, if you were a follower of interesting tech builds or independent music, or a member of the Geocaching community (it’s highly likely that the project was inspired in part by Geocaching), you may have been aware of The Nest as a unique way of sharing the self-titled debut LP from South African band, Bateleur.

Bateleur

Yes, this may seem like something of a publicity stunt. A cheaper version of U2 forcing their album onto every iPhone simply to ‘get through the noise’ and make sure their music was heard. But listen to Bateleur’s LP and I’ll guarantee that there’s no place you’d rather be than sat atop a mountain with the fresh air and beautiful vista before you.

Kloof Corner Cape Town

Image courtesy of trailing ahead

In my opinion, this build was not so much a publicity stunt as a public service.

Once The Nest was discovered, two whistles would act as a trigger to switch on the Raspberry Pi heart within the semi-translucent faux rock, and a light show, previously hidden from view, would begin to play. A pulsing ring of green lights would indicate when the device was ready for you to insert a USB drive and retrieve the album, while a rainbow pattern would let you know when the download was complete.

You could then either continue on your merry way or take the time to sit back and enjoy the view.

Now you may wonder why I have written this blog post in the past tense, given how recently The Nest was installed. Quite simply put, someone felt the need to vandalise and destroy it. Why? Your guess is as good as ours.

However short-lived The Nest project may have been, I’d like to thank Bateleur for their build. And if you’d like to see the creation of The Nest, here’s a wonderful video. Enjoy.

Bateleur : The Nest

To release their self-titled debut LP, Bateleur created The Nest. All you need to do is plug in. And climb a mountain. For more information visit bateleur.xyz __ Credits: All footage, editing & colour grading by Nick Burton-Moore. Hiker: Anine Kirsten Concept by Bateleur Music: Bateleur – Over (Again)

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