Product category: Embedded Software and Operating Systems
News Release from: Spirit DSP | Subject: Speaker verification software
Edited by the Electronicstalk Editorial Team on 10 December 2002
Speaker verification for PC-based systems
Spirit has developed a speaker verification software solution for PC-based systems
The software can be widely used at home and offices integrated with secure telephony, voice-based access systems, voice locks, childproof electronics, and other applications where it is necessary to identify a person by analysing his/her voice. Spirit's speaker verification solution functions in two major operating modes.
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In static mode, the user has to speak the password for the SV system makes its decision on whether the user is legal.
Dynamic mode is more complicated and more trustworthy.
In this case the user is required to speak a set of standard system keywords (eg numerals) in random order.
Further reading
Voice engine set for new mobile devices
High Tech Computer Corp has licensed the TeamSpirit Mobile Voice Engine for integration into new mobile devices
Dynamic mode is considered significantly more reliable though lengthier.
"One of the significant advantages of the system is high accuracy and robustness of provided results regardless of different acoustic conditions", - says Andrew Sviridenko, Spirit's founding CEO.
"The system based on Spirit speaker verification is very robust and the probability of wrong acceptance is less that 0.01%".
The speaker verification system supports both direct and remote speaker verification - with live voice or via phone line.
User enrolment and verification can be performed under different acoustic conditions (quiet room, phone verification etc).
Enrolment and verification thresholds are selectable, enabling an adjustable security level.
To improve verification reliability, the algorithm also implements signal/noise ratio and nonlinear distortion analysis.
Spirit's speaker verification software is available in the form of DLL libraries for Microsoft Windows.
The company can provide services for custom porting to DSP or RISC platforms on request.
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