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The standard VOCAL echo canceller API operates on 16-bit signed input values, and returns 16-bit signed values.*Note: These numbers reflected the capability of our implementation under constant excitation in a time-invariant environment.
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ACOUSTIC ECHO CANCELLATION FOR PC CODE
Portable, re-entrant and re-locatable library code.Comfort Noise Generation (CNG) with noise matching feature.Stereo and Multiple Mic Modes available.Configurable narrowband(8kHz), wideband(16kHz), super-wideband(32kHz), fullband(44.1kHz,48kHz), and high-resolution fullband(96kHz) sampling rates.Long configurable echo tail length (up to 512ms).Advanced double talk detection with low divergence during double talk.Fast re-convergence for echo path changes.
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ACOUSTIC ECHO CANCELLATION FOR PC SOFTWARE
Acoustic echo cancellation removes echoes caused by acoustic coupling and environmental acoustic effectsĪcoustic echo cancellation removes echoes caused by acoustic coupling and environmental acoustic effects.Īcoustic Echo Cancellation (AEC) software can be applied to hands-free telephone systems, conferencing speakerphones, IP intercom systems, V2oIP videoconferencing systems, aeronautical headsets, and smart speakers. This software can be applied to audio applications with sampling rates ranging from narrowband (8kHz), wideband (16kHz), and fullband (48/96kHz). VOCAL’s Robust Acoustic Echo Canceller software is platform independent C code, and is available for a wide variety of platforms, including ARM, Intel, ADI DSP, TI DSP. VOCAL’s AEC with speech enhancement features provide high definition and high-fidelity audio quality for full-duplex audio communications. Beyond adaptive filtering, double-talk detection, residual echo suppression, VOCAL’s AEC SDK can include features, such as noise reduction, anti-howling, automatic gain control and automatic delay estimation. VOCAL’s Robust Acoustic Echo Cancellation (AEC) software is an efficient, portable, customizable full-duplex Acoustic Echo Canceller solution for removing echoes caused by acoustic coupling and reverberations between the microphone and loudspeaker in the voice.