High Definition Acoustic Echo Cancellation | HD AEC™: operates in Narrowband (NB), Wideband (WB), Super-Wideband (SWB) and Full-Band (FB) modes.
Adaptive's Full Band, Full Duplex Music (FBFDM™) HD AEC brings full duplex voice communication in the presence of background music and other high frequency non-stationary audio signals while preserving the Full spectrum audio quality even in the presence of constant DoubleTalk.
Voice Applications: High-density, voice-over-packet and traditional telecommunications implementation-ready application solutions.
MELPe Military Codec: low bit rate vocoder supporting 2400, 1200 and 600 bps.
Yealink Conference Phone utilizes Adaptive Digital's Multi-Mic HD AEC.
Adaptive Digital's Auto Speech Recognition Preprocessor applies techniques to reduces noise, cancel echoic interference, missing data, and emphasize the desired signal.
AT&T certified "Toll Quality" G.168 Echo cancellation algorithm: Packet, Network,and Line.

Listen to our HD AEC demo!

HD AEC completely removes perceptible echo. with echo Microphone Input (TxIn)
- Female voice: Reflected echo
- Male voice: Near End talker

with echo

Microphone Output (TxOut)
- Echo (female voice) cancelled!

Read more about HD AEC...
DSP ENGINEER: accepting resumes >>

"We have made substantial improvements to our HD AEC™ in order to boost CPU efficiency, convergence/ re-convergence time, dynamic range and doubletalk robustness. Our HD AEC has also been tuned to work at Super wideband (SWB) and Full band (FB) rates.

Customer Sampling:


High Definition, Packet Processing Solution

Acoustic Echo Cancellation

Multi-Mic capable HD acoustic echo cancellation (HD AEC™) for high performance IP Phone / Conference applications


Voice Engine Reference Kit software
Reference Kits: ARM, ιOS, Android and Linux

VoIP Engine / SIP SDKs

VoIP Engine / SIP SDKs with sample projects, SIP library with header file, and quick start guides


Voice - Speech algorithms
ARM DEVICES Voice enabling Software Components

ARM based Voice Algorithms

ARMv7 Cortex™ -A/M series of applications processors - ARM Classic processors ARM11™, ARM9e™


MEMBER: TI Developers Program, ARM Connected Community, STMicro Third Party Network , and HP Alliance.
Adaptive Digital provides superior algorithms and software solutions on many platforms and processors, including but not limited to: Texas Instruments' TMS320C6000™ including C64x,C64x+, C66x, C674x, TI TMS320C5000 DSPs, TIVA C Series (Stellaris-M4), OMAP, & Davinci processors. ARMv7 - Cortex™ -A series of applications processors (A8, A9, A12, A15, A17), Cortex-M3, M4 family of devices. ARM Classic processors ARM11™, ARM9™, and ARM9e. STMicro - STM32 series of MCUs, SPEAr1310 device. Imagination Technologies' MIPS® Processor - MIPS32® - 24 KEc®, Analog Devices SHARC, and Freescale iMX processors.

About Us: Adaptive Digital Technologies is an industry-leading global provider of highly optimized, field-proven, scalable, standards-based telecom software for developers. We specialize in echo cancellation (Acoustic, Line, Network, and Packet), high-density conferencing, speech compression, telephony, voice quality enhancement, and audio algorithms for DSPs, ARM and general purpose processors. Adaptive Digital continues to meet and exceed the current and future requirements of service providers, equipment manufacturers, system integrators and developers by bringing superior voice quality to speech-based applications.