Microsoft has just been awarded a patent for technology designed to automatically detect and remove “undesired words or phrases” from all manner of digital communications, ranging from YouTube broadcasts to internet chat and songs.
The patent describes a system that listens out for phonemes (word fragments) likely to be part of a swearword. If it thinks it hears a forbidden phrase, the software either fades out the offending syllables or simply replaces the rude word with a similar-sounding but clean alternative lifted from earlier speech without a second’s delay.
With Microsoft’s software put in place by parents, children could listen to the most explicit rap music and hear nothing stronger than “gosh darn mother flippers”. Theoretically, the software could monitor thousands of digital TV broadcasts, radio stations and web chats simultaneously.
I suppose it's all well and good if parents want to use this to clean up what their kids listen to. (However, I do wonder why parents can't just tell their kids "hell no, you're not going to listen to that garbage in my house" the way my parents did.) But what about other potential uses of the technology, such as government censoring the Internet to keep bloggers from criticizing its actions? I see a potential for violation of free speech.