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 NEWS & EVENTS
March 14, 2020
GritTec has developed a prototype of audio device with active noise cancellation for remotely listening of a voice source on the street
GritTec has developed a prototype of audio device with active noise cancellation for remotely listening of a voice source in the chosen direction for the street conditions. The prototype of audio device has been created with using the microphone array architecture on the base of Arm Cortex © microcontroller.
The acoustic distance from voice source is about from 5 upto 50 meters that depending from the level of background noises and the case configuration of device. One of the audio prototypes of the device is shown in the picture.
This was achieved due to:
- updating of the adaptation mechanism of the dynamic filters for suppressing noises from background side direction of the microphone array;
- amplifying the speech source in the main direction ("source direct");
- the case configuration.
This device can be used in the perimeter security systems for outdoor video monitoring
To know more details send us a request via Online Request form.
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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
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