Title :
Novel Codec Structures for Noise Feedback Coding of Speech
Author_Institution :
Broadcom Corp.
Abstract :
This paper presents several novel codec structures for noise feedback coding (NFC) incorporating both long-term and short-term noise spectral shaping, as well as long-term and short-term prediction. In addition, the paper generalizes the conventional scalar-quantization-based NFC to vector-quantization-based NFC, and it lays the foundation for the associated efficient VQ codebook search and closed-loop VQ codebook design. BroadVoicereg16, a PacketCable 1.5 mandatory narrowband speech codec standardized by CableLabsreg for Voice over Cable in North America, is based on one of such novel NFC codec structures
Keywords :
speech codecs; speech coding; closed-loop VQ codebook design; codec structures; noise feedback coding; noise spectral shaping; scalar quantization; speech coding; Cable TV; Communication cables; Feedback; Filters; Narrowband; Noise shaping; Quantization; Speech codecs; Speech coding; Speech enhancement;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1660112
