There are situations where a low output impedance to A headphones is required. This article discusses three different versions of headphone amps to fit your particular application: a stereo amp powered by the power line; a battery-operated mono amp for a crystal set; and a battery-operated amp for a ceramic cartridge.
This project is a follow-on from my MIDI lyre project featured in the July-August magazine. I’m going to describe how to build a MIDI autoharp. Like the lyre, this is a MIDI controller, so it doesn’t make any sounds itself. Instead, it sends MIDI messages to an external synthesizer. It’s the synthesizer that makes the sounds.
The MIDI Replay stomp box is a powerful configuration and recording device for keyboard players, based on the wonderful MIDI protocol: the standard musical language of over 30 years.
This article explores the design challenges of this real-time system and covers topics such as task scheduling, buffers, parallel computing, dynamic memory management, response time analysis and menu system design.
When you think of MIDI controllers, you probably think of a keyboard. However, there are many reasons to have MIDI controllers in other form factors (guitars, saxophones, flute/clarinets, and even trumpets for example), not the least of which is fun! In this article, we will make a MIDI lyre version. Also, the techniques presented here will allow you to create your own touch sensitive MIDI controllers in any form factor you can imagine.
A theremin is a musical instrument that is played by waving one’s hands in midair over the instrument itself. There is no physical contact between the player and the instrument. Of course, this makes playing a theremin very difficult. However, help is on the way! Enter the Altura theremin MIDI controller kit!
The Macchiato is a build-it-yourself/do-it-yourself (DIY) miniature eight-bit, polyphonic, digital music synthesizer kit. Derived squarely from the circuitry roots that are deeply entrenched in the pioneering work of American synthesizer maestro, John Simonton of PAiA fame and the legendary analog 1980s Pro-One synthesizer from Sequential Circuits, this offering from Zeppelin Design Labs is much more than just a kit.
What kind of home project has 82 legs, horns, and will never have all of the "bugs" worked out of it? The answer is "H-2-Opus," a BASIC Stamp driven musical water fountain.