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GritTec's Noise Cancellation


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Datasheet
Abstract of GritTec's Delivery
API Description
SDK under Win x86/x64, Linux x86/x64, Linux Arm Cortex-A9
SDK under ARM Cortex M3
Free SDK under 'm-board-vc33' board with TI TMS320VC33 DSP

Overview

GritTec's Noise Cancellation (Version 2.35) of speech enhancement is used for reducing the external hindrances and background noises in speech signal. GritTec's NC can be used as for the selection of speech signal, so and for the selection of background noises.
  GritTec's NC is recommended to use in case of an amount of hindrances is unknown beforehand or it is impossible in the evident type to select "point" source of hindrances (absent-minded hindrance). Filter of noise cancellation is automatically adapted under all types of surrounding hindrances and selects both clear speech signal and background noises. GritTec's Noise Cancellaion can be effectively applied for:
  • suppression of street noises;
  • suppression of office noises (fan noise, computer noise, background speech and so on);
  • suppression of a various sort of mechanical noises, such as noises of avto-moto technics;
  • suppression of industrial noises;
  • suppression of channel distortions and noises arising in a consequence of coding and transfer of a speech signal on analogue and digital communication channels (VoIP);
  • suppression of other broadband noises.

Applications
  • Wireless telephony systems;
  • VOIP telephony;
  • Voice messaging services (voice mail);
  • Mobile phones or without 'hands free' system;
  • Call service centers.

Features
  • High quality of speech enhancement;
  • Low level of speech distortion;
  • Operation with low level SNR;
  • Separation as cleaned speech signal, so and background noise;
  • Three modes adaptation to background noises;
  • Controlled level of noise suppression in speech, including broadband color noises up to - 60 dB;
  • Possibility of using a graphic equalizer for removing the stationary hindrances;
  • Easy integration with target applications.

Signal requirement
  • Signal format: 16-bits linear;
  • 6 kHz, ..., 48 kHz sampling rate.

Availability
  • PC demo for MS Windows x86/x64, Linux x86/x64, Linux Arm Cortex-A9;
  • SDK with object code or ANSI C++ float point code is available on request;
  • Portability to any DSP or ARM platforms.

Online Shopping and Free Downloads
  • All products include a free evaluation period for your first installation only;
  • To continue using these programs after your evaluation period has expired, you can buy a end-user license;
  • Click 'Buy Now' under current product.

This program is a bash script for automatic noise cancellation in audio files with a speech signals from the external hindrances and ambient noises. The program works in console mode and may be useful to the customer's Back-End server for automatic processing of audio files.

Price: $300.0

Linux x86 or x64.  
Supported signal formats:
Windows PCM.
This program is a bash script for automatic noise cancellation in audio files with a speech signals from the external hindrances and ambient noises. The program works in console mode and may be useful to the customer's Back-End server for automatic processing of audio files.

Price: $300.0

MS Windows x86 or x64.  
Supported signal formats:
Windows PCM, A/mu-Law Wave, Microsoft ADPCM (MS ADPCM), Intel ADPCM (IMA ADPCM), Microsoft ACM GSM 6.10 (ACM Waveform).
The program with GUI interface which is used for reducing the external hindrances and background noises in speech signal. This program can be used as for the selection of cleaning of speech signals, so and for the selection of background noises and channel distortions. The program may be used for capturing of audio stream from Skype and its postprocessing with noise cancellation filter. The program can capture the outgoing audio stream and the incoming audio stream from the network.

Price: $35.0

MS Windows x86/x64.
Supported signal formats:
Windows PCM, A/mu-Law Wave, Microsoft ADPCM (MS ADPCM), Intel ADPCM (IMA ADPCM), Microsoft ACM GSM 6.10 (ACM Waveform).
This program with GUI interface uses for capturing of audio stream from Skype VoIP program and its post processing with Noise Cancellation filter for cleaning of initial voice in real-time mode. The program can clean a speech in outgoing audio stream and the incoming audio stream from the network. The program can save into file (*.wav) initial audio stream and audio stream after GritTec's post processing.

Price: $30.0

MS Windows x86/x64.
Supported signal formats:
Windows PCM, A/mu-Law Wave, Microsoft ADPCM (MS ADPCM), Intel ADPCM (IMA ADPCM), Microsoft ACM GSM 6.10 (ACM Waveform).


  Other Downloads
Trial Demo (Ver2,30) in console mode (Win x86/x64, Linux x86, Linux Arm Cortex-A9)
Trial Demo (Ver2,01) for TI TMS320VC33 (TMDSDSK33)


For more information, please contact us via Online Request Form.
If you are interested in our product, but you have not found your target platform, send us a request. We will be happy to assist you.