CMU Sphinx has no patent issues. We posted it in good faith, and all the work is original, and internal. CMU has participated in the DARPA speech program since its inception, and this codebase is part of what had been used there all the while. The oldest files in the distribution contain comments from 1977.
We don't believe there are any intellectual property issues with CMU Sphinx. Any patents issues that people might raise would have to overcome the considerable prior art at CMU, and all the code is from CMU, so there are no copyright issues.
After years of public moneys going towards this project, we feel good about putting the code in a public place like sourceforge. It makes a public record of it, and we hope this will help the community to build new systems and applications, and to refine the code. We intend to release the acoustic trainer and Sphinx3 also. Sphinx2 is our real-time system (but S3 is getting there quickly).
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We don't believe there are any intellectual property issues with CMU Sphinx. Any patents issues that people might raise would have to overcome the considerable prior art at CMU, and all the code is from CMU, so there are no copyright issues.
After years of public moneys going towards this project, we feel good about putting the code in a public place like sourceforge. It makes a public record of it, and we hope this will help the community to build new systems and applications, and to refine the code. We intend to release the acoustic trainer and Sphinx3 also. Sphinx2 is our real-time system (but S3 is getting there quickly).