What was it?
Let Siri speak your language with Asiri, the SiriProxy plugin that adds multi language support to Siri. Thanks to Google speech recognition service, Asiri can be configured to speak any language that is supported by Google.
Asiri is an open source project, released under dual-license agreement. GNU GPLv3, and MIT.
What was my part?
Asiri consists of two parts, the plugin itself, which is written in Ruby, and a native C library called speer, which is a simple decoder that converts sound files from speex to normal raw PCM 16bit Little Endian.