ECHO CANCELLATION / VQE SOFTWARE
Adaptive Digital's EC / VQE Algorithms- click on listing below for link and description.G.168 - LEC & NEC ECHO CANCELLER
Network & Line World class Echo Canceller Availability C64x / C64x+ / C66x, C55x, C54x, ARM Cortex-A8/9/15, ARM Cortex-M3/M4, Win32 DLL/LIB, & Linux
Adaptive Digital’s highly regarded “carrier-class” G.168 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+ / C66x, Win32 DLL/LIB, & Linux
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.ECHO CANCELLATION 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.
ACOUSTIC ECHO CANCELLATION
AEC GEN 1 & 2
AEC - Acoustic Echo Canceller Availability C64x / C64x+ / C66x, C55x, C54x, , ARM9 / 11, Cortex-M3/M4 & Cortex-A8/A9/A15, x86
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.
High Definition Acoustic Echo Canceller Availability C64x+ / C66x, C64x, C6740, C55x, Cortex A8 / A9 / A15, x86 Windows, Android
The Adaptive Digital's HD AEC, based upon our 4th Generation Acoustic Echo Canceller, is a frequency-domain based algorithm. It can handle up to 128 msec tail lengths and samples at 48 kHz.
There are currently two variants of HD AEC: desktop and mobile. The desktop variant is designed for office and conference room speakerphones.
The mobile variant is an extension to the desktop variant. The mobile variant is able to operate in environments where the bulk delay (audio delay to the speaker and back from the microphone due to buffering) is not known. This is notably the case in Android-based mobile phones.
The mobile variant is designed for mobile handsets, and tablets as well as desktop and laptop computers.
ADT NOISE REDUCTION
NR - Voice Quality Enhancement Availability C6xx, C55x, C54x
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).ADT NOISE REDUCTION GEN2
NR G2 - VQE C64x, C64x+, C66x, C674x, C55x, Win32 DLL/LIB
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.
ADT NOISE REDUCTION GEN3
Adaptive Digital’s third generation Noise Reduction algorithm analyses the speech signal for three distinct types of degradation noise, tone, and siren.NOISE SUPPRESSION
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.