echo suppression


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echo suppression

Turning off the receive side of a telephone conversation, effectively making the circuit one way (half-duplex). Echo suppressors were used to eliminate echo in satellite circuits before more sophisticated echo cancellation techniques could be deployed. See echo cancellation.
References in periodicals archive ?
OnWAN has better echo suppression, video, user interface and control tools than the other hardware-assisted solutions we have thoroughly tested.
SunForum and SunVideo Plus technologies work together to provide full-duplex audio with echo suppression.
Voice quality is further enhanced by integrated echo suppression and speech-pause compensation.
Ease-of-use features inherent to TeleVox, including a Setup Wizard, on-line directory, automatic and manual audio level control, echo suppression, caller ID, and hands-free operation, have been retained in this new version.
High speech quality is achieved by active echo suppression.
Berestetsky has extensive experience in the areas of design and computer-based modeling of algorithms and devices for digital signal processing in data and telecommunications systems, including mobile reception, compression/reconstruction of audio signals, image processing, channel equalization and echo suppression.
The sub-band algorithm offers additional echo suppression enhancement and is better suited for video applications where delay is introduced for lip synching.
Brian Herbert, Acting Manager, International Maintenance Centre (IMC), comments: "Our initial evaluation of echo cancellation equipment in the early 1990s involved three different manufacturers - we conducted a trial in conjunction with another country, who was also looking to change over from echo suppression, and monitored call duration over a number of months, switching between cancellers and the existing suppressers.
With low power consumption and advanced audio signal processing, this single-chip audio solution supports wideband voice, including noise cancellation and echo suppression, in a wide range of portable applications.
The software allows simple configuration of custom tank configurations, and provides easily selectable pre- programmed open channel flow configurations, and also false echo suppression, among many other features.
GIPS VoiceEngine Mobile for OSE incorporates GIPS Voice Quality Enhancement, including acoustic echo suppression and noise suppression, to maximize the quality of VoIP conversations.
In order not to suppress actual speech from the user at the other end, OctiVox detects the presence of far-end speech and inhibits echo suppression during such speech.