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View Diary: The Joys of Speech Recognition Tech (39 comments)

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  •  Telephone-based phone systems (2+ / 0-)

    have to deal with a whole host of additional problems.  Messages "spoken" to callers are usually recorded and processed in a studio.  But caller input, whether voice or keypad, arrives over low quality lines.

    We always designed our systems to allow for callers who have the old rotary phones that use pulses instead of tones.  I wonder if anyone still uses those old phones?  

    Pulse dialing dates from 1891, well over a century ago.  Touch Tones are 50 years old, ancient, by technology standards.

    Even Democrats can be asses. Look at Rahm Emanuel.

    by Helpless on Sat Nov 23, 2013 at 12:43:58 PM PST

    [ Parent ]

    •  Yep, like I mentioned, low quality lines plus (2+ / 0-)
      Recommended by:
      johnnygunn, Helpless

      ...low quality phones.  iPhones record fairly well.   I've had several people record interviews on their iPhones, and it came out sounding pretty good.  Not exactly radio-studio quality like my setup, but pretty usable. (My setup also cost $1500 to put together, and is not exactly user friendly)  

      I've had some use other phones as recording devices and they sounded like shit.  Picked up hiss, every background sound within 30 feet, tons of plosives and sibilants, lots of clipping.  Almost unusable.  

      So between the low quality connection on many phone calls, plus a wild variety of microphone and encoding quality on different phones, and the thousands of different accents and dialects, your job is very, very difficult I imagine.  

      Nonetheless, considering these limitations, many of the systems I've used have worked pretty well.  

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