Title :
Packet-loss concealment technology advances in EVS
Author :
Lecomte, Jeremie ; Vaillancourt, Tommy ; Bruhn, Stefan ; Hosang Sung ; Ke Peng ; Kikuiri, Kei ; Bin Wang ; Subasingha, Shaminda ; Faure, Julien
Abstract :
EVS, the newly standardized 3GPP Codec for Enhanced Voice Services (EVS) was developed for mobile services such as VoLTE, where error resilience is highly essential. The presented paper outlines all aspects of the advances brought during the EVS development on packet loss concealment, by presenting a high level description of all technical features present in the final standardized codec. Coupled with jitter buffer management, the EVS codec provides robustness against late or lost packets. The advantages of the new EVS codec over reference codecs are further discussed based on listening test results.
Keywords :
3G mobile communication; buffer circuits; jitter; speech coding; EVS codec; enhanced voice service codec; jitter buffer management; mobile service; packet loss concealment technology; speech coding; standardized 3GPP codec; Codecs; Decoding; Interpolation; Packet loss; Speech; Speech coding; Time-domain analysis; Concealment; EVS; VoLTE; audio coding; speech coding;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2015 IEEE International Conference on
Conference_Location :
South Brisbane, QLD
DOI :
10.1109/ICASSP.2015.7179065
