Home | Site Map | Contact | |
| Products | Solutions | News | Technology | Company | Downloads





June 16, 2011

GritTec has updated the Noise Cancellation software with GUI the interface for tasks of multi-channels suppression of hindrances and noises.

Suppression of "dot" sources of hindrances and noises in an initial speech signal is realized at the expense of synchronous recording of hindrances sources and source of (speech + hindrances), with further using of Noise Cancellation engine for suppression of absent-minded hindrances and all remainder of "dot" hindrances.
As a rule, the signal of “speech + hindrances” is recorded in the first channel and the signals of "hindrances" are recorded in all subsequent channels.

The multi-channel system of noise suppression is recommended to be applied when it is in advance known, that the quantity of hindrances and noise sources is limited, and it is possible to present them in the kind of "dot" sources of radiation, for example, noise of car engine, plane, radio or TV etc.

In the new version of the program GritTec's Noise Cancellation with GUI interface it's realised the two-channel scheme of noise suppression of the "dot" hindrance because the majority of the PC computers support sound card with 2 channels of mode recording of input signal (via Linear Input). However developers of “hands free” devices can expand the this scheme for suppression of several "dot" hindrances at using of multi-channel audio codecs.

Suppression of a "dot" hindrance in the program of GritTec's Noise Cancellation with GUI interface occurs under the following scenario:
1. To set mode of stereo recording.

2. To set mode of channels recording mixing.

3. To adjust the parameters of Noise Cancellation engine.

4. To click button for launching of full duplex record.

Also it is necessary to notice, that in the core of the new version of GritTec's Noise Cancellation (Version 2.10) with GUI interface it is put updated engine of noise cancellation - GritTec's Noise Cancellation (Version 2,10).

To test the new program of GritTec's Noise Cancellation (Version 2.10) with GUI interface, please download it via GritTec's website or contact us via Online Request form.

About GritTec
GritTec Laboratory (GritTec Ltd.) specializes on research and development of algorithms and technologies in the field of speech and audio processing. GritTec's research is focused on speech enhancement, speech concealment, voice biometric, speech recognition, speech synthesis and other speech and audio technologies.
Url: http://www.grittec.com