The BBC has published some online demonstrations that recreate the sounds of the BBC Radiophonic Workshop using the Web Audio API:

Explore the BBC sound of the 1960s with our 4 demos of Radiophonic equipment, built with the new Web Audio API standard. Each demo comes with commented code, so you can learn how to build your own audio applications.

The demos include simulations of the Workshop’s gunfire effects, the ‘Wobbulator’, tape loops & a ring modulator.

Along with the demos, the BBC has published information on the genesis of the project and how it was built. If you’re interested in HTML audio, code is provided for each of the examples.

via rrw