Dave breadboards a 1988 vintage Tandy / Radio Shack VCP200 speaker independent voice recognition chip from Voice Control Products Inc.
Will it work after 27 years?
Will it recognise his Australian accent?
Special guest appearance by Sagan!
Forum: http://www.eevblog.com/forum/blog/eevblog-713-vcp200-voice-recognition-1980's-style/'>http://www.eevblog.com/forum/blog/eevblog-713-vcp200-voice-recognition-1980's-style/
Radio Electronics magazine April 1991: http://ia601702.us.archive.org/21/items/radio_electronics_1991-04/Radio_Electronics_April_1991.pdf
Forest Mimms article in 1989 Modern Electronics magazine:
http://www.americanradiohistory.com/Archive-Modern-Electronics/Modern-Electronics-1989-01.pdf
MC68HC04 Datasheet:
http://images.ihscontent.net/vipimages/VipMasterIC/IC/MOTO/MOTOD005/MOTOD005-3-355.pdf
M6804 User Manual: http://www.textfiles.com/bitsavers/pdf/motorola/6804/M6804_MCU_Manual_Sep85.pdf
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
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http://www.patreon.com/eevblog
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http://astore.amazon.com/eevblogstore-20
Donations:
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Done.

Avatar photo

By YTB

26 thoughts on “Eevblog #713 – voice recognition – 1980’s style”
  1. Avataaar/Circle Created with python_avatars Cyndi's Hunt for Knowledge says:

    I remember this chip and putting it together with the application notes which without Internet being easily available to consumers was all I had. Good times. I remember it was a bit finicky and understood certain words better than others. Had no idea it was a microcontroller in disguise!

  2. Avataaar/Circle Created with python_avatars Mark Beck says:

    I was always intrigued by this when I saw it in the Radio Shack stores back in the day, but I just never bought one. I am so glad you took the time to go thru this and make a video on it! Thanks for sharing!

  3. Avataaar/Circle Created with python_avatars Georgy Farniev says:

    Hey Dave, I ordered Brymen BM235 from you , I would love if you can include some DaveCad with it as a gift. Thank you.

  4. Avataaar/Circle Created with python_avatars Rubab Mubarrat says:

    I like his enthusiastic way of explaining Electronics

  5. Avataaar/Circle Created with python_avatars Hola! Joe smoe says:

    It's a fuke ๐Ÿ˜†

  6. Avataaar/Circle Created with python_avatars tstahlfsu says:

    OMG YOUNG SAGAN IS SO DARN CUTE hahaha

  7. Avataaar/Circle Created with python_avatars MrMamanDon says:

    Shut the hell up and let segan do the talking!

  8. Avataaar/Circle Created with python_avatars Waya Hedia says:

    It would work much better without the accent. ๐Ÿ™‚

  9. Avataaar/Circle Created with python_avatars Nullpointer says:

    30 bytes of RAM? Wow

  10. Avataaar/Circle Created with python_avatars Keshav Kasat says:

    can we do this project without the IC , and how?

  11. Avataaar/Circle Created with python_avatars Cole PDX says:

    and what vr circuit doesn't benefit from a generous smattering of red LEDs?

  12. Avataaar/Circle Created with python_avatars Antti Kantola says:

    he speaks like rappin some times

  13. Avataaar/Circle Created with python_avatars Maggus Hirsch says:

    hmmm I really wonder what people are disliking this video ?!

  14. Avataaar/Circle Created with python_avatars VLS-why? says:

    Haha, you don't have to worry about this sending your data to the NSA

  15. Avataaar/Circle Created with python_avatars Galakyllz says:

    Sagan seems to be learning a lot. I think he's definitely on a great path. ๐Ÿ™‚

  16. Avataaar/Circle Created with python_avatars Robin Sattahip says:

    Voice recognition software has not improved much since the 1980's. Still gets many sentences wrong..

  17. Avataaar/Circle Created with python_avatars youtuuba says:

    Dave, are you sure that this is "phoneme based"? I have seen some other documentaries on this part, and if I recall correctly, it just did some basic detection of overall amplitude shape of a word's syllable profile, or something like that, and was not even remotely sophisticated enough the 'reverse engineer' a spoken work into its phonemes. Maybe you were thinking about contemporary voice SYNTHESIZERS that used the phoneme approach (like the Votrax SC-01)….?

  18. Avataaar/Circle Created with python_avatars ะฅะปะตะฑะฝะธะบะพะฒ ะ”ะตะฝะธั says:

    It must to be a complimentary pic with speacing function

  19. Avataaar/Circle Created with python_avatars ะฅะปะตะฑะฝะธะบะพะฒ ะ”ะตะฝะธั says:

    it seems more logical to put "yes" with "on" … and "no" with "off" isn't it?

  20. Avataaar/Circle Created with python_avatars Hola! David Perkins says:

    I think the spectrum analyzer would be cooler than a 'scope in this case!

  21. Avataaar/Circle Created with python_avatars kippie80 says:

    Look at the little chip, all alone in package. You feel for the little chip? You say no too many times to the little chip and make it sad? The chip has no feelings fool! It is a chip! Put it with some of its chip friends … little chip will crush you!

  22. Avataaar/Circle Created with python_avatars AL_O0 says:

    And now we use servers and cloud computing along with neural networks and AI,
    And you call that an upgrade?

  23. Avataaar/Circle Created with python_avatars huskee says:

    Daniel B. Cooper….
    Wait a second…
    D.B. Cooper…
    Nahhhhhhhhhhhhhh

  24. Avataaar/Circle Created with python_avatars mustafa almatra says:

    Hey man,
    Great video, i have a question considering the band pass filter. Why two two
    stages?
    Thank you

  25. Avataaar/Circle Created with python_avatars Ricardo Schuchmann says:

    Imagine some critical application where this thing has been built in.
    "Off, off. Off. OFF, damnit you! OFF!"

  26. Avataaar/Circle Created with python_avatars Roll Bot says:

    try just the first syllable of each command and see if accuracy changes?

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