Techniques for high-quality ACELP coding of wideband speech
B. Bessette, Roch Lefebvre, Redwan A. Salami, Milan Jelinek, Janne Vainio, Jani Rotola-Pukkila, H. Mikkola, K. Järvinen · 2001
We present in this paper new methods for achieving high- quality wideband speech at low rates using the ACELP algorithm. Several innovations are introduced to optimize the quality and minimize the complexity of the coder. A multi-rate wideband speech encoding algorithm based on these techniques was recently selected by 3GPP as the standard for AMR-WB, and is currently one of the candidates for the ITU- T wideband speech coder standard at around 16 kbit/sec. This standard was jointly developed by VoiceAge and Nokia.