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There are fewer options for speech recognition these days, and now there are even fewer with Nuance announcing they acquired Vlingo for an undisclosed figure. Following multiple lawsuits related to patent infringement, the two companies apparently came to what CEO of Vlingo Dave Grannan called  “a good outcome.” Grannan elaborated in a prepared statement (via AllThingsD):

Vlingo is notably used in various voice-controlled Android apps, and it is viewed as competitors to Apple’s Siri built into the iPhone 4S. However, Siri, also used it prior to it being used by Apple, before switching to Nuance…

Norm: It is a lot less important than you’d probably think. When we first built Siri, we use Vlingo for speech recognition and as such, at the time of purchase the speech recognition component is modular. Theoretically, if a better speech recognition comes along (or Apple buys one), they could likely replace Nuance without too much trouble. That being said, Nuance has far and away the most IP in speech synthesis technologies in the industry. We should know, SRI launched Nuance as one of our incubated companies in 1995 and it IPO’d in 2000.

Mike Thompson, head of Nuance mobile unit, seems to attribute the decision largely to Apple’s Nuance-powered Siri: