Improving Performance of Real-Time Full-Band Blind Packet-Loss Concealment with Predictive Network
Viêt‐Anh Nguyên, Anh H. T. Nguyen, Andy W. H. Khong
Abstract
Packet loss concealment (PLC) is a tool for enhancing speech degradation caused by poor network conditions or underflow/overflow in audio processing pipelines. We propose a real-time recurrent method that leverages previous outputs to mitigate artefact of lost packets without the prior knowledge of loss mask. The proposed full-band recurrent network (FRN) model operates at 48 kHz, which is suitable for high-quality telecommunication applications. Experiment results highlight the superiority of FRN over an offline non-causal baseline and a top performer in a recent PLC challenge.
Topics & Concepts
Arithmetic underflowComputer sciencePacket lossNetwork packetDegradation (telecommunications)Real-time computingSpeech recognitionQuality (philosophy)Computer networkTelecommunicationsPhilosophyProgramming languageEpistemologySpeech and Audio ProcessingSpeech Recognition and SynthesisMusic and Audio Processing