Speech Technology Center Solutions for Mobile Phones

New Security Challenges ► Drastic increase in productivity of mobile devices leads to new security challenges ► More data stored on mobile devices (personal and corporate) ► Increased security threat

What’s at risk? The vast majority of users (70.7%) keep confidential information on their mobile device ► personal and/or business correspondence ► access details to accounts ► corporate and personal data (documents, client info) ► intellectual property

What’s at risk? Confidential information on mobile devices Personal (private) details Nothing important Confidential corporate documents Company intellectual property Private client and partner data 68,1% 29,3% 16,5% 14,9% 12,2% %

Lost or Stolen ► If a mobile device is lost or stolen, the entire corporate intranet could be threatened ► In order to prevent this scenario access control should nclude both hardware/device-based authorization and application based authorization

Voice Biometrics ► Each voice is absolutely unique ► No additional hardware required for mobile devices ► Voice can not be passed to anyone else and guarantees identity of a person ► Voice can not be lost or stolen

Verification Technologies GMM/SVM ► Statistical Gaussian Mixture Models and Support Vector Machines ► State-of-the-Art approach ► Not enough robustness to noise Spectral-Formant Method ► Proprietary STC method ► Formants – individual features of vocal tract

Technology Voice Pin Spectral Formant method ► Comparison of formant positions ► Different formant positions result from individual features of a human’s vocal tract Formants visualized on the spectrogram

VoicePin Speaker Verification For Windows Mobile

VoicePin at glance ► Reliable speaker verification solution for mobile phones ► Biometric protection for mobile devices and/or application on mobile devices ► Easy to use ► Few seconds per authentication ► Couple of moments required to create a speaker “voice-print” ► Must be performed only once! ► Multiple users ► Language independent ► No additional hardware required

Easy to Use Voice Pin Step 1 Register a voiceprint by repeating a password 3 times Step 2 Pronounce a password once for an authentication Language: English Platform: Windows Mobile Requirements: PocketPC Install: Install and Uninstall

Technical characteristics Voice Pin ► 175 kb Memory footprint ► Standard built-in microphone is sufficient ► Up to 100 registered users ► Real-time authentication ► Automatic noise detection and adaptive speech enhancement ► Multilanguage interface ► Easy to integrate with other applications ► High reliability of authentication: ► FAR (False Acceptance Rate) ► Input signal SNR (Signal-to-Noise Ratio) >= 20 dB

Voice Pin for Corporate clients ► User authentication for corporate mobile devices ► Access to folders or files containing sensitive information ► Access to particular functions / data on mobile devices s SMS, client/partner info ► Access to folders or files containing sensitive information Private clients: ► Access control for children

VoicePin for ISVs Voice Pin can be easily integrated with any other application developed for Windows Mobile ► service ► Calendars ► Organizers ► Mobile Workstations

VoicePin for Telecom ► New option for corporate and government clients - mobile devices with built-in biometric voice authentication ► Voice authentication for devices attached to contracts ► Biometric authentication for NFC-enabled devices (NFC allows payments directly from a mobile phone SIM card) ► Stand alone offering to retail clients

VoiceCom SDK Voice Command Recognition

VoiceCom SDK VoiceCom - reliable voice command recognition technology Voice interface - launch applications with voice commands Language independent - based on language-independent and speaker-independent algorithms Robust to noisy environment – STC noise reduction software allows VoiceCom to work in noise environments Language: English Platform: Windows Mobile Requirements: PocketPC Install: Install and Uninstall

Voice Com Applications ► Corporate Software Solutions ► Mobile Phones, Smartphones, PDAs, Internet tablet ► Media Devices with built-in microphone and Windows Mobile OS Features ► Robust to noise (SNR < 15 dB, noisy street environment) ► Reliability: > 98% ► Fast enrollment procedure ► Can be adapted to a certain speaker ► Speaker-independent ► Language-independent ► Separate command database ► Real-time processing

Speech Enhancement Noisy environment Online speech enhancement Implementation on the chipset

Hands-off Speech Enhancement ► STC algorithms tune automatically ► Adaptive algorithms of noise cancellation ► No need for manual tuning - “hands-off” approach ► Can be integrated in mobile phones to improve speech intelligibility

Denoiser Mobile Audio enhancement improve speech intelligibility for noisy recordings ► Voice mails ► Pre-recorded phone conversation ► Audio files

STC – Areas of Expertise Language-independent technologies ► Speech Enhancement (noise robustness) ► Professional Voice Recording ► Automatic Speaker Identification ► Identification (searchable databases) ► Verification Russian language based technologies ► Speech Synthesis (Text-to-Speech) ► Automatic Speech Recognition ► IVR systems ► Russian LVCSR ► Keyword Spotting

Only Facts: STC Today ► 18 years on the market ► 250 employees ► Software and hardware products ► Only STC proprietary technologies ► ISO-9001:2000 certified ► Co-editor of ISO biometric standards

Only Facts: STC R&D Cluster ► Unique scientific school ► 100 specialists strong R&D team ► Researchers, algorithmists and programmers ► 25 PhDs ► Maths, physics, linguistics… ► Collaboration with top universities ► Research support, student scholarships

Contacts Ilya Oparin 4 Krasutskogo str Saint-Petersburg Russia tel fax: VoicePin VoiceCom SDK Speech Enhancement