I was mentioning about run time operations, not training. Yes training DNNs are much more time consuming, but my point is, using them is also not cheap. As ment

I was mentioning about run time operations, not training. Yes training DNNs are much more time consuming, but my point is, using them is also not cheap. As mentioned, processing 1 second of speech, lets say in 0,5 seconds is expensive. Considering a web search is done in sub millisecond time. of course I assume speech recognition is done in server side.