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 ADM - Adaptive Dual
 Microphone

 AEC - Acoustic
 Echo Cancelling

 AFR - Acoustic
 Feedback Reduction

 AVQ - Automatic
 Volume & eQualization
 Control

 AVQ-Me - AVQ for Music
 and Entertainment

 AWNR - Adaptive Wind
Noise Reduction

 DRC - Dynamic Range
 Compression

 EasyListen - speech
 slowing-down

 Mono to Stereo
 conversion

 MuRefiner

 NS - Noise Suppression

 PLC - Packet
 Loss Concealment

 ISM - Intelligent
 Speech Mixer

 Vocoders

 White papers

 Terminology index

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About Packet Loss Concealment

Packet loss occurs when one or more packets of digital voice data traveling across some digital system or network fail to reach their destination. Packet loss can be caused by a number of factors, such as network failure, packets corruption and so on. For sound signals packet loss may cause anoying artifacts such as pops and glitches.

Packet Loss Concealment is a technique used to mask the effects of lost or discarded packets. The objective of PLC is to reconstruct a synthetic signal to cover missing data in a received bit stream and thus hide transmission losses.

Interactive audio examples for PLC

Use control buttons on the interactive screenshots to play/stop/navigate.

Original signal with lost packets (20 ms packets; loss rate 10%):

Processed signal with reconstructed packets:

Additional information

Please, contact us for more information, audio examples and real time demo availabilities.

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