PRODUCTS
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 Voice
Activity Detector
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Datasheet (32 K)
Overview
Voice Activity Detector (VAD) is used for detection silence intervals.
Principle of functioning of detector is based on methods of adaptive filtrations, allowing tracing dynamically appearance of fragments of noise signal.
Depending on conditions of the channel, mips and quality detection, it’s possible different realizations of variants
Voice Activity detectors.
It allows using them effectively on the background of broadband noises and channel distortion.
Such detectors can be effectively used in coders as well as in other applications (IP telephony, Call service centers), where it is important to reduce the rate of bit transmission and save processing resources during the temporary intervals to corresponding silence.
Features
- Fast adaptation to changing of channel distortion and external
noises;
- Operation with low SNR;
- Easy integration with target applications.
Signal requirement
- Signal format: 16-bits linear;
- 8 kHz, ..., 32 kHz sampling rate.
Availability
- Float/Fixed-point C++ source code;
- DLL libraries for MS Windows;
- PC demo for MS Windows is available on request;
- Portability to any DSP, ARM or RISC platform.
For more information, please contact us via Online Request Form.
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