ApplPi is a stochastic noise machine that creates a soothing background noise for those who can't work in complete silence or need to mask distracting noise. It creates sound similar to any noise machine, but it's more musical and harmonic. Additionally, you can control the frequency (note) of the sound and choose from built-in presets of noise/sound.
Slim HTML5 Audio jQuery Plugin is a very simple jQuery plugin to embed an audio player. It can insert HTML to play a given audio file using the HTML5 audio tag. It also inserts the embed container tab as fallback when the audio tag is not supported by the Web browser (e.g., IE7 and 8).