Apple has confirmed to Financial Times that it has acquired VocalIQ, a Cambridge-based startup that develops platforms for voice interfaces. While the company didn’t go into detail about the acquisition, including how much the deal cost, it’s likely that VocalIQ will be used to bolster Siri’s speech processing and machine learning capabilities. More importantly, VocalIQ specializes in making things like Siri better understand natural language, which makes it to where users can interact with them much more casually.