BIGHAND SPEECH RECOGN ITIONTECHN ICAL REQU IREMENTS

Software version: 4.2Last edited date: 10 November 2011

Contents

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Contents

Contents 2

Introduction to Server Side Speech Recognition 3Dragon®NaturallySpeaking™ SDKServer 4

BigHand Transcription Server 5

BigHand Speech Recognition Pre-learning Utility 6

Introduction to Client Side Speech Recognition 7Dragon®NaturallySpeaking™ SDKclient edition 8

Introduction to Server Side Speech Recognition

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Introduction to Server Side Speech Recognition

BigHand Speech Recognition enables users to transcribe voice files with the BigHandWindowsclient using a wiredmicrophone, portablemicrophone, or smartphone and send them to a speechrecognition workflow.

The BigHandWorkflow Server uploads the file and updates the database. The BigHand ExternalWorkflow Server communicateswith the BigHand database and filestore via the BigHand ServicesHost.

The BigHand Transcription Server accepts the file from the BigHand ExternalWorkflow Server andgives it to Dragon for transcription. Dragon transcribes the voice file and gives a resulting text.

The Speech Recognition Pre-learning Utility is an optional component which can be used to train thespeech recognition profiles using transcribed voice files prior to use.

The Speech Recognition components are as follows:

l Dragon NaturallySpeaking SDK Server fromNuance Communications®

l BigHand Transcription Server

l BigHand ExternalWorkflow Server (see ‘BigHand Core Product Technical Requirements’document)

l Speech Recognition Pre-Learning Utility (optional)

Introduction to Server Side Speech Recognition

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Dragon® NaturallySpeaking™ SDK Server

Description: The Dragon NaturallySpeaking™ SDK Server fromNuance Communications providesserver-side speech recognition functionality for BigHand users.

Componentof: Speech Recognition

Connects to: BigHand Transcription Server*

Target of: BigHand Transcription Server*

Processor: Recommended: Intel® Pentium® 2.4 GHz (1.8 GHz dual core processor) or equivalentAMD processor. 2 MB L2Cache recommended.

Memory(RAM):

WindowsServer 2003: 1 GBminimum, 2GB recommendedWindowsServer 2008: 2 GBminimum, 4GB recommended

Storagerequirement: 2.5 GB‡

OperatingSystem: WindowsServer 2003,WindowsServer 2008, andWindowsServer 2008 R2§

.NETFramework: N/A

Connectioninfo: Sharedmemory

Co-existwith otherservices:

Must be installed on the samemachine as the BigHand Transcription Server.

Otherinformation:

* BigHand Transcription Server 'wraps' the DNS SDK Server.†Nuance states that 'BestMatch IV has the greatest recognition accuracy on dual-coresystemswith more than 2GB of RAM' and that it is designed for multi-coreenvironments.‡Minimum for a custom installation where you install only the program files and one setof speech files. The storage requirement also depends on the number of users. Thespeech profiles require several gigabytes of hard disk space. Ensure that you haveadequate storage for the profiles you want to install.§BigHand recommends that the latest relevant Service Packs andWindowsUpdatesare installed on theOperating System before installing this component.

User profiles also require storage space, up to amaximumof 2 GB per user.

Introduction to Server Side Speech Recognition

5

BigHand Transcription Server

Description: A Windows service that wraps the Dragon NaturallySpeaking™ SDK Server fromNuance.

Componentof: BigHand Speech Recognition (Optional module)

Connects to: Dragon® NaturallySpeaking™ SDK Server

Target of: ExternalWorkflow Server

Processor: As for DNS SDK Server*

Memory(RAM): As for DNS SDK Server

Storagerequirement: 2 GB†

OperatingSystem:

WindowsServer 2003,WindowsServer 2008, andWindowsServer 2008 R2‡, 64-bitversions supported

.NETFramework: .NET Framework 3.5

Connectioninfo: WCF / HTTP

Co-existwith otherservices:

No – competition for resources can cause degradation in transcription accuracy.

Otherinformation:

* Same specification as for the Dragon NaturallySpeaking™ SDK Server. The BigHandTranscription Server must be co-located with the Dragon® NaturallySpeaking™ SDKServer. It should not be co-located with other programs/services.† The speech profiles require several gigabytes of hard disk space. Ensure that you haveadequate storage for the profiles you want to install.‡BigHand recommends that the latest relevant Service Packs andWindowsUpdatesare installed on theOperating System before installing this component.

User profiles also require storage space, up to amaximumof 2GB per user.

Introduction to Server Side Speech Recognition

6

BigHand Speech Recognition Pre-learning Utility

Description: This tool is used to train the speech recognition engine using completed voice files.

Component of: Speech Recognition

Connects to: BigHand Services

Target of: User

Processor: As for BigHandWindowsClient

Memory(RAM): As for BigHandWindowsClient

Storagerequirement: As for BigHandWindowsClient

OperatingSystem: WindowsXP,WindowsVista, Windows 7 (64-bit versions supported)

.NETFramework: .NET Framework 2.0 and 3.0

Connectioninfo: TCP

Otherinformation:

All BigHand components for Speech Recognitionmust be installed first.

Minimum specificationmay increase if other applications outside of BigHand are alsorunning on the samemachine.

Introduction to Client Side Speech Recognition

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Introduction to Client Side Speech Recognition

BigHand integrateswith Nuance Dragon® NaturallySpeaking™ to provide Client Side SpeechRecognition. Using BigHand Client Side Speech Recognition users can view and edit text as it istranscribed. Users can use voice commands to edit text, apply basic formatting from the BigHandconsole and export formatted text to Microsoft Word. Users can also insert the formatted text into atemplate using the BigHand profile feature.

For more information about Client Side Speech Recognition, refer to the Client Side SpeechRecognition User Guide. The Speech Recognition components are as follows:

l Nuance Dragon® NaturallySpeaking™ SDK client edition version 11

l BigHandWindowsClient. For information on technical requirements, refer to the document'BigHand Core Product Technical Requirements'.

Introduction to Client Side Speech Recognition

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Dragon® NaturallySpeaking™ SDK client edition

Description: BigHand integrateswith Nuance Dragon® NaturallySpeaking™ to provide client sidespeech recognition.

Component of: Client Side Speech Recognition

Connects to: BigHandWindowsClient

Target of: N/A

Processor:

Minimum: 1GHz Intel® Pentium® or equivalent AMD processor or 1.66 GHz Intel®Atom® processor.

Recommended: 1.8 GHz Intel Dual Core™ or equivalent AMD processor.

Memory(RAM)*:

Minimum:

l 1GB for WindowsXP andWindowsVista

l 2GB for Windows 7 andWindowsServer 2003/2008

Recommended:

l 2GB RAM for WindowsXP andWindowsVista

l 4GB for Windows 7 andWindowsServer 2003/2008 64-bit

Storagerequirement: 2.5 GB†

OperatingSystem‡:

Microsoft Windows 7, 32-bit and 64-bit

Microsoft WindowsVista SP1 and SP2, 32-bit and 64-bit

Microsoft WindowsXP SP2 and SP3, 32-bit only

WindowsServer 2003 and 2008, SP1, SP2 and R2, 32-bit and 64-bit

.NETFramework: 3.0

Connectioninfo: Sharedmemory

Co-exist withother services: Must be installed on the samemachine as the BigHandWindows client

Otherinformation:

* Theminimum specificationmay increase if other applications are also running on themachine.† TheUser profiles also require storage space up to amaximumof 2GB per user.‡BigHand recommends that the latest relevant Service Packs andWindowsUpdatesare installed on theOperating System before installing this component.