Google Tech Lead Manager Alex Wiesen admits that users sometimes unintentionally receive silly voicemail-to-text messages. Google is now asking for your help to fix such issues and make transcriptions.
Now, when you log into Google voice on the web, you’re allowed to share your voicemail messages that are analyzed for accuracy by automated systems. If you choose to submit individual messaged for analysis, then you’ll automatically be submitting all your messages, all the time to the system provided you’ve decided to be a part of this project. You can also withdraw yourself from the project anytime through Google Voice’s settings page in case you’re interested.
Source: Alex Wiesen (Google+)