Speech processing algorithms

Signal Processing algorithms. Noise suppression, Event detection, Microphone arrays algorithms.

• New speech recognition technologies (new algorithms and C/C++ realization). • Voice activity detection - robust to input signal level, detects speech in real noise environment. Stable detection for Speech to Noise ratio down to –9 dB.• Developed Adaptive speech restoring filter (C++ class). Filter characteristics are variated according to speech signal distortion with the aim to restore pure speech signal.• Created Speech visualizer – C library for artistic speech signal visualization.• Provided statistical simulation and investigation of the different speech recognition algorithms. • Developed of algorithms and software for noise modelling and suppression.• Provided statistical simulation of speech recognition process in noise environment.