speech technology center solutions for mobile phones

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 email 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%

0 10 20 30 40 50 60 70 %

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 VerificationFor 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 timesStep 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 e-mails 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

► E-mail 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 CommandRecognition

VoiceCom SDK

VoiceCom - reliable voice command recognition technologyVoice interface - launch applications with voice commandsLanguage independent - based on language-independent and speaker-independent algorithmsRobust 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 environmentOnline 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 Oparinwww.speechpro.comilya@speechpro.com

4 Krasutskogo str Saint-Petersburg196084 Russia

tel. +7 812 331-0665fax: +7 812 327-9297

VoicePin VoiceCom SDK Speech Enhancement