Wideband Acoustic Echo Canceller (AEC WB) by Adaptive Digital Technologies, Inc.

Audio and Voice Solutions

Product Description

Adaptive Digital's wideband acoustic echo cancellation algorithm also supports narrowband. This acoustic echo canceller is the fourth generation (G4) acoustic echo canceller offered by Adaptive Digital.

The Adaptive Digital Technologies acoustic echo canceller (AEC) electronically removes both direct coupling and reflected echo, enabling true full-duplex hands-free telephony in mobile phones, speakerphones, and hands-free intercoms.
The fourth-generation canceller includes a noise reduction feature, as well as the typical anti-howling, nonlinear processing, and double-talk detection found in the first generation AEC. The acoustic noise reduction feature is particularly useful during speakerphone calls where there is background noise present such as an exhaust fan, and in noisy outdoor environments.

Features include:

• Superior Double-Talk Performance
• Supports 8 kHz and 16 kHz sampling rates
• Able to achieve greater than 40 dB of ERLE without nonlinear processorIntegrated noise-reduction
• Fast Convergence and reconvergence
• No divergence due to doubletalk
• Integrated microphone equalization
• Integrated automatic gain control
• Parameters are user configurable
• Non-linear processor
• Excellent voice quality

Feature unique to AEC Gen 4:

• Multiple channel operation
• Parameters are user configurable
• Fast Convergence
• Automatic Gain Control
• Noise reduction
• Equalization

Wideband Features:

• Full duplex performance under a wide dynamic range of audio levels.
• Supports wideband audio (16 kHz, 32 kHz, 44.1, and 48 kHz sampling rates) with no artificial cutoff of high frequencies.
• Supports tail lengths up to 250 msec. with true full-duplex cancellation. (Not half-duplex suppression.)
• Converges within one second regardless of tail length and sampling rate. 

Supported by ARM processor-based devices

Specifications available on our website at: http://www.adaptivedigital.com/product/arm/adt-aec-gen4-arm.htm

Wideband Acoustic Echo Canceller (AEC WB)

Market Segment(s)

• Embedded
• Enterprise
• Mobile
• Mobile Computing

Target Platform(s)

• Android
• Linux
• Other OS
• Windows Embedded CE
• Windows Mobile

ARM Processor(s)

• Cortex-A15
• Cortex-A53
• Cortex-A57
• Cortex-A8
• Cortex-A9
• ARMv8

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