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As discussed in the system requirements of our Dragon 10 upgrade page...
To improve the recognition speed, Dragon NaturallySpeaking 10 was designed to use SSE2 technology.   By adding this new requirement to Dragon NaturallySpeaking 10, it enabled us to reduce computation time and latency for fast speakers.   SSE2 is supported by almost all processors sold since 2006, but some systems that meet the processor speed requirement do not support SSE2.   


Details on SSE2 and how it relates to NaturallySpeaking:  

Dragon NaturallySpeaking 10 requires that the PC's processor support SSE2 in order to run properly.  It is not possible to run Dragon NaturallySpeaking 10 on a system that does not support SSE2.  If the system does not support SSE2, the following error is displayed when attempting to open Dragon NaturallySpeaking:

"A Serious Error occurred while initializing the NaturallySpeaking speech engine"

The following website includes information on SSE2:

Link to Nuance Technote about the SSE2 requirement in the Nuance online knowledge base:, under Technote: 6027.


Determine if a computer supports SSE2 

There are various utilities available to determine if a computer's processor supports SSE2. The following CPU-Z utility is available for free and is updated regularly.  

Link to CPU-Z write-up:


What can this utility tell you?

CPU-Z Information by that is helpful while you check NaturallySpeaking system requirements

Click on these Thumbnails to see a typical screen.

CPU tab:
Details about your processor including
whether your processor supports SSE2

Required:  SSE2 support.
2.4 GHz (1.6 GHz dual core) processor.  Absolute minimum processor is Intel 1 GHz or equivalent.


Cache tab:
The PC's amount of L2 Cache

Recommend:  1MB
Absolute Minimum: 512KB


Memory tab:
The PC's amount of memory (RAM)

Recommend 2 GB + RAM or more, depending on your desired applications.  
Absolute minimum is 1GB for Windows Vista or 512 MB for other supported operating systems.


SPD tab:
More detail about your PC's memory/RAM -- including # memory slots, size/type of RAM in each slot, etc.   Very helpful info if you want to add RAM.


If you want to save the results of this utility, you have several options:

The F5 key allows to save a screenshot as a bmp file in the application directory. These are named cpu.bmp, cache.bmp, mainboard.bmp and memory.bmp.


The F6 key copies the current page in the clipboard.  Then you can go to another application and do the "Ctrl+v" key combination to paste the page.


The F7 key saves the validation cvf file in the current directory.


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Do you need to order one of the NaturallySpeaking Full Products (Not just an Upgrade)?  Click here to Order NaturallySpeaking Full Products OR...

Note regarding Pricing:    We believe we have competitive prices.  Call/email to let us price-match any price you find.

Do you need a full version of the product or would you like to read the whole product write-up for a particular edition?  See our Speech Recognition Overview Page!


Services Info

IMAGE Management, LLC has been selling and supporting speech recognition since 1993!  We are a Nuance Gold Certified Partner and Nuance Certified Dragon NaturallySpeaking® Instructors representing the Dragon NaturallySpeaking® product line and related products.  
We offer Pre-Sales and Post-Sales Speech Recognition Online Support
Do you need assistance with the product?  We offer Speech Recognition Services.

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