Adaptive Digital's voice codecs - click on codec below for link and description.
G.168 | G.168Plus packet EC | EC Test Service | AEC | AEC G4 | Noise Reduction Gen 1& 2 | Noise Suppression
Network & Line
World class Echo Canceller 
Availability C54x, C55x, C64x, C64x+, ARM & Linux
Adaptive Digital’s highly regarded “carrier-class” G.168.v10 patented echo 
canceller provides : rapid convergence,
advanced comfort noise, handles a 128 ms echo tail without a performance penalty.
Qualified As Toll-Quality by At AT&T
ADDITIONAL FEATURES:
Functions are C-callable, Multiple channel operation , Parameters are user configurable, Non-linear processor, Automatic Tail Search, Cancels multiple independent echo tails, No divergence due to doubletalk, Stationary signal detector improves performance in the presence of tones, Tone Disabler disables the EC during voiceband modem connections, Convergence monitor, & CNG
World
class Echo Canceller G.168Plus packet C64x, & C64x+
The VoIP G.168 Plus™ packet echo canceller has the unparalleled ability to handle round-trip delays of up to 512 milliseconds. This ability to cancel echoes with exceptionally long delays, coupled with a built-in awareness and handling of packet-loss makes G.168 Plus uniquely suitable for VoIP applications.
G.168-2004/2006
Testing Service
G.168 echo canceller is important for both telephone equipment manufacturers
and service providers. Adaptive Digital Technologies, Inc., a leader in the
echo canceller business, offers a G.168 echo canceller test service. Adaptive
Digital performs G.168 testing on T-1 or E-1 based hardware that requires echo cancellation.
Testing can be done in Adaptive Digital’s lab, in the customer’s
lab, or even in the field.
AEC - Acoustic
Echo Canceller Availability C54x, C55x, C64x, ARM
The Adaptive Digital Technologies patented acoustic echo canceller electronically removes both direct coupling and reflected echo enabling true full-duplex hands-free telephony for both mobile phones and desktop speakerphones.
Acoustic
Echo Canceller Generation 4 Availability C55x, C64x
The Adaptive Digital's 4th Generation Acoustic Echo Canceller (AEC G4), is a frequency-domain based algorithm. It can handle up to 128 msec tail lengths and samples at 16 kHz. With the fourth-generation canceller a noise reduction feature is included, as well as the typical anti-howling, nonlinear processing, and double-talk detection found in the first generation AEC.
NR
- Voice Quality Enhancement Availability C54x , C55x , C6xx
Adaptive Digital has two classes of noise reduction algorithms. They are distinguished by a number of characteristics: Standard (noise reduction) and Low Complexity (noise suppression).
NR G2
- VQE C64x, C64x+
Adaptive Digital's Gen2 noise reduction is an excellent choice for applications with high background noise environments. Applications include traditional, mobile, and hands-free telephone systems, conferencing, speech recognition, and alarm systems.
NS
- Voice Quality Enhancement C55x
The Adaptive Digital noise suppression software reduces background noise that is present in speech signals during periods between speech periods, but not during the actual speech periods. This is a low-MIPS alternative to noise reduction, which reduces noise during speech periods also.
SITE LINKS
HOMEECHO CANCELLER
G.168 v10 NEC & LEC G.168 Plus™ Packet G.168 Testing Service G.168 Lite G.168 EC CHIP 'C6424 G.168 SUB. TEST DEMO ECHO EXPLAINED AT&T QUALIFICATION ACOUSTIC EC ACOUSTIC EC G4 EC INDEXVOICE QUALITY
VQE SUITE Noise Reduction Noise Reduction Gen2 Noise SuppressionRELATED LINKS
PRODUCT INDEX .pdf INDEX WHITE PAPERS VOIP PHONE REFERENCE KIT G.PAK FRAMEWORK OPEN G.PAK SOLUTION DSP RESOURCE WIZARD
Adaptive Digital's echo canceller is a robust, carrier class, flexible software solution that is available across a wide variety of DSP platforms.
