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Speech Technology Center Solutions for Mobile Phones

Speech Technology Center Solutions for Mobile Phones

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Page 1: Speech Technology Center Solutions for Mobile Phones

Speech Technology Center Solutions for

Mobile Phones

Page 2: 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

Page 3: Speech Technology Center Solutions for Mobile Phones

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

Page 4: Speech Technology Center Solutions for Mobile Phones

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 %

Page 5: Speech Technology Center Solutions for Mobile Phones

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

Page 6: Speech Technology Center Solutions for Mobile Phones

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

Page 7: Speech Technology Center Solutions for Mobile Phones

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

Page 8: Speech Technology Center Solutions for Mobile Phones

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

Page 9: Speech Technology Center Solutions for Mobile Phones

VoicePin

Speaker VerificationFor Windows Mobile

Page 10: Speech Technology Center Solutions for Mobile Phones

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

Page 11: Speech Technology Center Solutions for Mobile Phones

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

Page 12: Speech Technology Center Solutions for Mobile Phones

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

Page 13: Speech Technology Center Solutions for Mobile Phones

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

Page 14: Speech Technology Center Solutions for Mobile Phones

VoicePin for ISVs

Voice Pin can be easily integrated with any other application developed

for Windows Mobile

► E-mail service

► Calendars

► Organizers

► Mobile Workstations

Page 15: Speech Technology Center Solutions for Mobile Phones

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

Page 16: Speech Technology Center Solutions for Mobile Phones

VoiceCom SDK

Voice CommandRecognition

Page 17: Speech Technology Center Solutions for Mobile Phones

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

Page 18: Speech Technology Center Solutions for Mobile Phones

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

Page 19: Speech Technology Center Solutions for Mobile Phones

Speech Enhancement

Noisy environmentOnline speech enhancement

Implementation on the chipset

Page 20: Speech Technology Center Solutions for Mobile Phones

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

Page 21: Speech Technology Center Solutions for Mobile Phones

Denoiser Mobile

Audio enhancement improve speech intelligibility for noisy recordings

► Voice mails

► Pre-recorded phone conversation

► Audio files

Page 22: Speech Technology Center Solutions for Mobile Phones

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

Page 23: Speech Technology Center Solutions for Mobile Phones

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

Page 24: Speech Technology Center Solutions for Mobile Phones

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

Page 25: Speech Technology Center Solutions for Mobile Phones

Contacts

Ilya [email protected]

4 Krasutskogo str Saint-Petersburg196084 Russia

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

VoicePin VoiceCom SDK Speech Enhancement