1. ITU-T G.722.1 Annex C: A New Low-Complexity 14 KHZ Audio Coding Standard
- Author
-
P. Chu, Minjie Xie, and D. Lindbergh
- Subjects
G.722.1 ,MPEG-4 Part 3 ,Computer science ,Speech recognition ,Speech coding ,Teleconference ,computer.file_format ,Wideband audio ,Sampling (signal processing) ,Adaptive Multi-Rate audio codec ,Advanced Audio Coding ,Audio analyzer ,Codec ,Sound quality ,computer ,Digital audio - Abstract
This paper describes the low-complexity 14 kHz audio coding algorithm which has been recently standardized by ITU-T as Recommendation G.722.1 Annex C ("G.722.1C"). The algorithm is an extension to ITU-T Recommendation G.722.1 and doubles the G.722.1 algorithm to permit 14 kHz audio bandwidth using a 32 kHz audio sample rate, at 24, 32, and 48 kbit/s. The G.722.1C codec features very high audio quality and extremely low computational complexity compared to other state-of-the-art audio coding algorithms. This codec is suitable for use in video conferencing and teleconferencing, and Internet streaming applications. Subjective test results from the characterization phase of G.722.1 C are also presented in the paper
- Published
- 2006