At that time, the CCITT (now called ITU), began a standardization effort to specify the performance and testing of echo cancellers
under the spec name "G.
Ditech's voice products are high-capacity echo cancellers
that utilize advanced software and digital signal processor (DSP) technology.
Features include 32 echo cancellers
divided into 16 groups of two each with each group individually controllable to provide either two channels at 64ms or one channel at 128ms and a power management capability that allows individual groups of echo cancellers
to be powered down when not in use.
SoftRISC will also provide Symbol with solutions critical for deploying enhanced VoWiFi, including ITU compliant Speech Codec along with integrated Acoustic Echo Canceller
and Automatic Gain Control.
SoftRISC, a leading provider of VoIP and multimedia software solutions for RISC platforms, today announced the first software for RISC-based CPUs that eliminates a separate DSP chip, as well as the need for discrete application chips such as an Echo Canceller
, MP3 player, or MPEG4 player.
Ditech products include high-capacity voice enhancement and echo canceller
solutions that utilize advanced software and digital signal processor (DSP) technology.
In continuing to raise the bar by providing price performance for softPBX solutions, Sangoma is shipping an optional low density HW based echo canceller
for the A200 series.
This task becomes difficult in double-talk and in the presence of loud ambient noise, where the echo canceller
may become confused and intermittently cancel the user's speech by mistake.
We look forward to bringing the HEI feedback canceller
to customers via our AMIS Orela and Gennum Voyageur DSP platforms as part of our modular DSP software suite for hearing aids.
By using the low-power FM1182 -- with a power consumption of only 35mW -- not only can designers deliver superior echo and noise cancellation (60dB acoustic echo cancellation, 20dB noise suppression), they can also save 80% of processing power compared with using a software echo canceller
The provisional patent application titled "Echo Canceller
Controller" covers the techniques of measuring echo on incoming voice streams and controlling the echo canceller