소음저감 기술 : NS (Noise Suppressor)
■ NS technology…
▶ Estimate noise floor in frequency-domain with fast noise tracking
▶ Additive algorithm for low musical noise, low voice distortion and naturalness
of residual noise
▶ 2 mic beamforming for clearer voice pick-up
▶ Maximum 26dB SNR enhancement with dual microphone.
▶ Voice activity detection with real-time speech modeling, reduce residual voice
distortion or musical noise even at low SNR.
▶ ASR recognition rate recovery about 50%
ex) If recognition is 60% without NS, recognition is about 80% with NS