Efficient VQ techniques and general noise shaping in noise feedback coding
Jes Thyssen, Juin-Hwey Chen · 2006
This paper describes new efficient Vector Quantization (VQ) techniques that enable low complexity implementations of VQbased Noise Feedback Coding (NFC). These methods offer mathematical equivalence to higher complexity methods. Furthermore, the paper presents efficient codec structures for general noise shaping as used in BroadVoice®16 – a new SCTE ® (Society of Cable Telecommunications Engineers) and PacketCable ™ speech coding standard for Cable Telephony. Index Terms: speech coding, noise shaping, efficient VQ. 1.