Sergey Koval, Speech Technology Center

Abstracts:

The quality of recorded or transmitted sound is usually quite far from audioorigin. It is obvious for everyone, who is involved with audio video recording or speech telecommunication. This issue is connected with the presence in the recorded or transmitted in communication channel audio signal some noise and sound corruptions, as well human ear peculiarities.
Often, if the difference of the initial useful signal and available for end-user sound signal is unacceptable, the necessity of special sound processing is arisen. Such a processing is referred to as noise cancellation or signal enhancement. Everywhere there are now sound recording and communication units, there are numerous old sound recording archives. This caused the permanent interest to noise canceling tools.
Demand makes supply and on the market are known many PC-based software products, which are proposing some procedures of noise cancellation. But as usual the effectiveness of the absolute majority of such a software is very low, especially for complex noise or sound records in real noisy environment by non-professionals and by low-quality equipment.
So many audio fans and professional audio renovators have well-founded distrust to real possibilities of sound enhancement technologies for noisy field records.
Due to many-years research and practical experience the experts of Speech Technology Center have converted the noise cancellation from the field of art and intuitive estimations and tunings into the course of the friendly PC-based routines. They combine in one product the transparency and effectiveness for novel users and the same time unique freedom for experienced experts to create the refined detailed, complex and original sound processing procedures.
SoundCleaner в– universal software product of the brand-new generation. This is unique tool for canceling of many types of real noise and signal enhancement for live or recorded sound. Many users in the areas of audio processing, sound renovation, speech communication, crime detection, forensic sound examination have only very positive estimations of this software performance.

The SPEECH TECHNOLOGY CENTER (STC), headquartered in St. Petersburg, Russia, designs, develops, manufactures and markets hardware and software speech and general signal processing products for commercial and governmental applications.
Our main fields of activity :
· Customized Research and Development
· Voice recognition
· Voice verification (voice-based access restriction)
· Noise reduction in speech signals
· Forensic examination & investigation of "black boxes"
Our main products :
· Professional Speech Signal Analysis and Processing Methods and Tools soft-/ hardware/ systems;
· Voice recognition software
· Voice verification (voice-based access restriction) software
· Noise Cancellation and Speech Enhancement Tools
· Systems and Tools for Documenting of Speeches, Meetings, Interviews etc
· Digital voice logging/monitoring systems
· Communication channel protection