2 Speech Technology Center Global provider in the rapidly growing voice-enabled sector

3 Agenda Speech Technology Center  Background  Experience  Team STC solutions for Mobile Platforms  VoicePin  VitalVoice Mobile  VoiceCom  Denoiser Mobile  Vocal Search application Large-scale speech solutions  VoiceNavigator  VitalVoice  VoiceKey Service Automated media monitoring solution  Jingle Tracker Voice-based identification solutions  VoiceNet and Trawl series

4 Company Overview Speech Technology Center

5 Executive summary Company STC develops cutting edge technologies and products related to recording, analysis, recognition and synthesis of the human speech. STC has 250 employees and 20 years experience in voice-based technology development. The company built one of the strongest R&D teams in the industry to stay ahead of the competition and quickly respond to market demands. Focus Speech technologies are rapidly growing as technology development enables new applications. Key market segments:  Biometric solutions (voice verification and databases)  Speech recognition (speech to text) and synthesis (text to speech)  Professional (high quality) recording and analysis

6 Growth Strong growth potential  Well-established products (purple line) provide high growth potential  New technologies (yellow line) drastically improve growth projections

7 From science to products Complete business cycle STC business model is built around the concept of a complete business cycle  Strong R&D  Product Design  Production (though outsourcing)  Marketing and sales Diverse product line

8  One of the leading R&D teams (voice sector) in the world: over 100 technical specialists, scientist and software developers (including 25 PhDs)  Strong support and client relationship teams R&D Cluster STC R&D facility, Saint-Petersburg STC built one of the strongest R&D teams in the industry

9 Global customer base in more than 60 countries

10 STC Mobile Applications Voice Biometrics Mobile Applications STC product range

11 STC R&D facility, Saint-Petersburg Advantages  Speech is a natural way of communication  Authentication of a person without a direct contact  No special equipment is required  Voice is the key that cannot be “lost” like regular PIN or password.  Fraud protection (biometric patterns can not be stolen or forged)  Low deployment costs and fast investments return Voice Biometrics Mobile Applications

12 STC R&D facility, Saint-Petersburg VoicePIN is a unique solution for user verification on mobile devices  VoicePIN protects the data on the mobile phone with a voice password  VoicePIN controls access to the mobile phone in general or separate folders and services Features  Language independent solution  High accuracy of verification  Correct work in noisy environments (street, restaurant, etc.)  Password phrase to pronounce is shown on the screen  Algorithm adapts for the microphone characteristics of the device  Regular bypass password option if voice verification is not possible (very noisy environment, person’s health problem affecting his speech) Voice Biometrics Mobile Applications: VoicePIN

13 STC R&D facility, Saint-Petersburg Voice Biometrics Mobile Applications: VoicePIN VoicePIN Technical characteristics  User verification process is 3-5 seconds  Password phrase is 3-5 seconds long  Registration process takes 1-2 minutes  Noise robust  Multiplatform application

14 STC R&D facility, Saint-Petersburg VoiceCom Mobile is a command recognition solution for mobile devices. Using VoiceCom one can easily manage his mobile phone and navigate through functions and applications with the most natural user interface – his voice. Features  Easy hands-free operation  Fast and accurate recognition of pronounced commands  Quick access to any mobile application or function including the hidden ones  Robustness to noise ensures reliable functioning in any environment (street, car, crowded place)  Few minutes to set up  One-click launching  Language independence  Multiplatform application Voice Biometrics Mobile Applications: VoiceCom Mobile

15 STC Mobile Applications Noise Cancellation Mobile Application Speech Technology Center product range

16 STC R&D facility, Saint-Petersburg Denoiser Mobile is a noise cancellation solution that can reduce a wide range of noises in any audio file stored on a smartphone. Application  phone conversations recording  conversation playing back  enhancement of the quality of the recorded conversations and other audio files Noise cancellation mobile application

17 STC R&D facility, Saint-Petersburg Noise cancellation mobile application Denoiser Mobile Features  Recording phone conversations and saving them to audio files  Built-in audio player  Automatic noise cancellation processing of the recorded conversations  Option to turn on and off the sound enhancement during the playback allowing to hear the original and processed recordings  Noise suppression in any audio file saved on the mobile device  Choice of preset noise cancelling algorithms based on the type of recorded sound (music, speech)  Advanced settings allowing to choose from10 presets based on the needed level of sound enhancement  Manual filter settings for expert noise suppression  Platform-independent algorithms

18 STC Mobile Applications Speech Recognition and Synthesis Mobile Application for Russian Language Speech Technology Center product range

19 STC R&D facility, Saint-Petersburg Internet search engine Voice inquiry Mobile phone Information search and data communication Vocal Search Application for Mobile phones Application that enables information search in Internet by means of vocal commands

20 STC R&D facility, Saint-Petersburg Vocal Search Application for Mobile phones GSM/GPRS Voice Navigator MRCP server (Media server) ASR Automatic speech recognition TTS Text to speech Search on the Map Internet Search Engine *.vxml speech recognition grammar DB Voice inquiry Recognition of voice inquiry Building the dictionary for speech recognition based on Internet search engine rating Search engine STC site Mobile phone user

21 STC R&D facility, Saint-Petersburg Vocal Search Application for Mobile phones Voice search and management of information  Voice search of information in Internet  Pronouncing of dynamically changing information GPRS navigation Device messages  Synthesized reading of messages, documents, e-books, sms, web site contents, etc. Mobile phone user ASR and TTS use cases

22 STC R&D facility, Saint-Petersburg Vocal Search Application for Mobile phones Advantages  Highly scalable solution, supporting unlimited number of recognition and synthesis requests.  ASR and TTS modules take into account all specifics of Russian language, they were developed in Speech Technology Center by native speaking specialists  Fast adaptation of ASR and TTS algorithms to new requirements, accession of new words to the dictionaries for synthesis and recognition, addition of new reading rules for certain words, etc  Minimum time required for processing a request (synthesis and recognition) – the system can be implemented in real-time and online solutions.

23 STC R&D facility, Saint-Petersburg VitalVoice Mobile The speech synthesis application that allows to read aloud any text document or messages in Russian on mobile device. Synthesized speech can be saved in mp3 or wav file. Minimal requirements:  Windows 5.0  Processor: 400Mhz  RAM: 64MB  500MB of flash memory (for one voice)‏ Speech Synthesis Mobile Application: VitalVoice Mobile

24 Large-scale Speech Solutions Russian Language ASR and TTS STC enterprise solutions

25 STC R&D facility, Saint-Petersburg Russian language ASR and TTS: VoiceNavigator PSTN PBX IVR VoiceNavigator MRCP server Speech platform STC ASR Automatic Speech Recognition TTS Text to Speech SIV Speaker Identification Verification MRCP - client VoiceNavigator deployment

26 STC R&D facility, Saint-Petersburg Russian language ASR and TTS: VoiceNavigator Benefits of speech synthesis and recognition  Increasing the efficiency of call center functioning  Lowering the stress load on the agents of first level  Lowering the cost of a minute of service  Increasing customer satisfaction  Building services unavailable with regular DTMF  Providing clients with dynamically changing information  Servicing clients who doesn’t have touch tone phones  Natural communication between a user and a System  Image of the Company as innovative solution provider Benefits of speech synthesis and recognition in IVR

27 STC R&D facility, Saint-Petersburg Russian language ASR and TTS: VoiceNavigator ASR and TTS …. Why is it comfortable? Receiving information about credits and deposits Receiving information about rates and prices Search of addresses of ATMs and bank branches Many ways to pronounce the name of the same object or location Dynamically changing information Building menus with multiple choice options Company functioning automation Call routing by employee name

28 STC R&D facility, Saint-Petersburg Russian language ASR and TTS: VoiceNavigator  Synthesis was developed in by native speaking linguists  On-demand voice creation from the speaker’s phonograms  Unique linguistic processing (correct reading of abbreviations, abridgements, numbers, special characters, harmony of tenses, homonymy). Why to chose the synthesis of Russian speech by STC

29 Large-scale Speech Solutions Russian Language Synthesis STC enterprise solutions

30 STC R&D facility, Saint-Petersburg Speech synthesis VitalVoice Speech synthesis is the process of creation of voice signal from the written text. Speech Synthesis Methods:  Allophonic (based on phonemes combinations)  Unit Selection (based on speech fragments selection from the database) STC approach Allophonic + Unit Selection Methods= Naturally sounding speech Speech Technology Center strong RnD team has developed new method of the speech synthesis, combining the advantages and excluding the shortcomings of both methods and created unique Russian language solution VitalVoice

31 STC R&D facility, Saint-Petersburg Speech synthesis VitalVoice Speech Synthesis Technology  Speech formatting is done on 9 levels of text analysis, including such significant parameters like pauses, syntagms, speech specifics of the speaker, etc.  Such analysis and breaking of the text allows to compose the speech from the correctly chosen and structured fragments

32 STC R&D facility, Saint-Petersburg Speech synthesis VitalVoice Advantages  Naturally sounding speech produced from any text  Consideration of phonetic, morphologic and grammatical specifics of Russian language  Technology of the natural intonation cloning  Putting correct stressing in words  Correct pronunciation of abbreviations, abridgements, numbers and special characters  Easy to implement and use  Support of standard data exchange protocols and markup languages (MRCP, SAPI, SSML)‏  8 different voices  On-demand creation of unique voice

33 Large-scale Speech Solutions Voice Biometrics Solution STC enterprise solutions

34 STC R&D facility, Saint-Petersburg Voice Biometrics Solution: VoiceKey Service VoiceKey VoiceKey is a biometric engine for verification and identification of a user based on his unique voice characteristics. It is proprietary technology designed, developed and patented by Speech Technology Center. Features  Easy registration process  Fast verification. 4-5 seconds to identify a person  Low error rate, ERR is about 3,5%  More than 20 unique voice characteristics are extracted and analyzed  Language and accent independent

35 STC R&D facility, Saint-Petersburg Voice Biometrics Solution: VoiceKey Service VoiceKey Service (VKS) is a software module based on VoiceKey engine intended for biometric verification and identification of users by their voices. VKS is specifically designed to control user’s access to corporate materials, personal financial, confidential and valuable information, virtual resources and services using a voice password phrase.

36 STC R&D facility, Saint-Petersburg Voice Biometrics Solution: VoiceKey Service  Accurate and reliable verification/identification  Easy, intuitive, handy usage and management. No end user training required  Fast enrolment and verification/identification processes  No need to keep details in mind: account number, card number, passwords – your voice is the key  Language independence  Noise robust. Uses STC’s proprietary algorithm.  Fraud security (biometric patterns can not be stolen)  Compliance with international standards and data exchange formats  Highly scalable and flexible  Easy to implement  Low deployment costs and fast investments return VoiceKey Service advantages

37 Automated media monitoring solution Jingle Tracker STC enterprise solutions

38 Purpose  Automatic monitoring of media content in stream (TV, Radio broadcast)  Automatic monitoring between regional broad- casting and central channel schedule  Monitoring of media channels to reveal unapproved use of musical content or other copyright objects  Search of audio samples in media archives (TV, radio, Internet) Advantages  Fully automatic search  High reliability  Service scalability – work with large number of samples and channels as well as single objects  High productivity  Capability for simultaneous search of up to 15,000 messages Automated media monitoring solution: Jingle Tracker

39 Automated voice-based identification solutions VoiceNet and Trawl series STC expert solutions

40 Voice-based identification solutions  Trawl Lab Express identification of speakers under investigation  Trawl Х Express search (real-time) of audio files containing the speech of target speaker  VoiceNet Express investigation of speech recordings and voice database management system  VoiceNet SDK SDK providing automation of speech recordings biometric express investigation  VoiceNet ID Large-scale speaker identification and voice database management solution

41 STC voice-based identification solutions benefits  Easy to use (high level of automation)  Rapid search (up to 1500 phonograms per second)  Language and accent independent  High reliability Voice-based identification solutions

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