CEDAR's VoicEX voice extractor sets a new standard for real-time noise reduction. Indeed, it's close to being a magic button and yet it's so simple to use that novices and experts alike can achieve remarkable results with the minimum of fuss and effort.
Where you might expect numerous controls, you'll find just two knobs - one to determine the loudness of the background, and the other to control the loudness of the speech. Reduce the former to make noise and excessive reverberation go away. Reduce the latter, and the voices go away. Increase either to emphasise that part of the signal. It takes no time at all to master, but the results can be truly amazing.
VoicEX's leap forward has been made possible by adopting a completely new approach to voice extraction. Rather than try to gauge the noise level at each frequency and suppress this, CEDAR trained an algorithm called a neural network to identify the voices in the signal and create two audio streams - one containing just the voices, and the other containing everything else. This approach makes VoicEX very simple to use. Where you might expect numerous controls, you'll find just two knobs - one to determine the loudness of the background, and the other to control the loudness of the speech. Reduce the former to make noise and excessive reverberation go away.
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