VoIP receiver-based adaptive playout scheduling and packet loss concealment technique

Byeong Hoon Kim, Hyoung Gook Kim, Jichai Jeong, Jin Young Kim

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


This paper proposes a high performance playout scheduling and packet loss concealment algorithm at the receiver for enhancing Voice over Internet Protocol (VoIP) speech quality. In the proposed method, arriving packets are classified by an adaptive thresholding approach based on the analysis of multiple features of short signal segments. The excellent classification results are used in the playout scheduling and packet loss concealment. In adaptive playout, the buffering time is minimized by way of playing out normally or compressing each packet according to accurate network jitter estimation. Additionally, linear prediction-based packet loss concealment delivers high voice quality by alleviating the metallic artifacts due to concealing consecutive packet loss or recovering lost packets1.

Original languageEnglish
Article number6490267
Pages (from-to)250-258
Number of pages9
JournalIEEE Transactions on Consumer Electronics
Issue number1
Publication statusPublished - 2013


  • Jitter Estimation
  • LossConcealment
  • Playout Scheduling
  • Signal Classification
  • VoIP

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


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