h-node ~ Online Open Hardware Database


The h-node project aims at the construction of a hardware database in order to identify what devices work with a fully free operating system. The h-node.org website is structured like a wiki in which all the users can modify or insert new contents. The h-node project is developed in collaboration and as an activity of the FSF.

https://h-node.org/

Opsound ~ Free Open Music


Opsound is a gift economy in action, an experiment in applying the model of free software to music. Musicians and sound artists are invited to add their work to the Opsound pool using a copyleft license developed by Creative Commons. Listeners are invited to download, share, remix, and reimagine.

Website
Wikipedia

tonedeaf ~ Online Hearing Test


Test your musical skills in 6 minutes!

While working at the music and neuroimaging lab at Beth Israel/Harvard Medical School in Boston, I developed a quick online way to screen for the tonedeafness. It actually turned out to be a pretty good test to check for overall pitch perception ability. The test is purposefully made very hard, so excellent musicians rarely score above 80% correct. Give it a try!

Website

SpeakPipe ~ Online Voice Recorder


SpeakPipe voice recorder allows you to create an audio recording directly from a browser by using your microphone. The recording is produced locally on your computer, and you can record as many times as you need. There is the option to save your recording on the SpeakPipe server and get a link to it, so you can send it via email or use on the web.

Works on iPhone, iPad, iPod, and Android devices.

Webservice