1200 Year Old Tin-Can Telephone Made From Gourds and Twine

 


http://www.smithsonianmag.com/ideas-innovations/Theres-a-1200-year-old-Phone-in-the-Smithsonian-Collections-231152081.html

It looks like people in the year 813 AD were playing around with materials and made a "tin-can" telephone from natural materials!

Building Horn Speakers

Recently, there was an excellent thread on digi_instruments with lots of great examples of people building their own horn speakers!

Here are my favorite links from that thread:

• The Paper Horn by Inlow Sound
• Horn Ether 
• Gimbal Loudspeakers, part 1 - make sure to press "view slideshow"
• Gimbal Loudspeakers, part 2
• Gimbal Loudspeakers, part 3 - make sure to click "view slideshow"

If you never knew, horn speakers, can be extremely efficient.

That extra efficiency often means your speakers sound louder with same amount of power.

But you're an audiophile, not an ecologist, right, so who cares?!

Well, the amplifiers don't get pushed into distortion regions as easily, so the sound quality can be improved.

Horn loudspeakers fell out fashion many years ago, but slowly people are waking up to them again.

Building Embedded lua under Ubuntu Linux

Building Embedded lua under Ubuntu Linux

First, I read AndyP's directions.  I had to make a few changes to work under Ubuntu, so I'm sharing my updates here.

Magnetic Resonator Piano

See also:

• http://www.youtube.com/watch?v=f79d_oVqv4Y

How the Iconic iPhone "Boo-Dah-Ling" Sound Was Designed

http://jacklinstudios.com/docs/making-of-158-marimba.html

Digi Instruments

http://www.reddit.com/user/diydsp/m/digi_instruments

Pushpin MIDI Interface for Game Boy Color and Game Boy Advance

This project from Brian Whitman and I has been running for many years!
It is very exciting to see that there is still interest in it.
For those curious, I have gathered up a number of important links that show different ways you can build and use this interface to turn a GBC or GBA into a MIDI-controlled music instrument. 

http://diydsp.com/livesite/pages/Pushpin_MIDI

Example song:  "The Matrix"