Title :
Compressed domain packet loss concealment of sinusoidally coded speech
Author :
Rødbro, Christoffer A. ; Christensen, Muds G. ; Andersen, Søren Vung ; Jensen, Søren Holdt
Author_Institution :
Dept. of Commun. Technol., Aalborg Univ., Denmark
Abstract :
We consider the problem of packet loss concealment for voice over IP (VoIP). The speech signal is compressed at the transmitter using a sinusoidal coding scheme working at 8 kbit/s. At the receiver, packet loss concealment is carried out working directly on the quantized sinusoidal parameters, based on time-scaling of the packets surrounding the missing ones. Subjective listening tests show promising results indicating the potential of sinusoidal speech coding for VoIP.
Keywords :
Internet telephony; data compression; packet switching; speech coding; 8 kbit/s; VoIP; compressed domain packet loss concealment; packet-switched communication systems; quantized sinusoidal parameters; sinusoidal modeling; sinusoidal speech coding; speech compression; time-scaling; voice over IP; Buffer storage; Communications technology; Delay effects; Jitter; Packet switching; Robustness; Speech coding; Speech enhancement; Testing; Transmitters;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1198727
