Packet loss concealment for speech transmission based on compressed sensing

Providing effective real-time speech transmission with acceptable quality for VoIP applications and mobile and wireless speech communication is a very important and challenging task. In these communication networks, the bad situations with heavy packet loss happen from time to time. In this paper, a packet loss concealment scheme based on the compressed sensing technology is proposed. It only uses the available speech samples to recover the lost ones by mean of compressed sensing, so it is independent of speech codec algorithms; therefore it can be used in any speech communication systems in receiver side. Evaluation results have shown that the performance of it is still good even when packet loss rate is 40% or higher, it is also good for both waveform and parameter based speech coding applications.