How Speech Recognition Works.
How does a computer convert speech into data that it can then manipulate or execute? Initially, when we speak, a microphone converts the analogue signal of our voice into digital chunks of data that the computer must analyze. It is from this data that the computer must extract enough information to confidently guess the word being spoken. This is not exactly an easy task for a computer. In fact, in the early 1990s, the best recognizers were yielding a 15% error rate on a relatively small 20,000 word dictation task. Now though, that error percentage has dr…
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