Speech coding in MPEG-4

While previous MPEG Audio standards mainly were focused on the representation of audio signals close to or equal to CD quality, the new MPEG-4 Audio standard extends the range of applicability towards significantly lower bit rates. Furthermore it offers extended functionalities for the representation of natural and even synthetic audio signals in an object oriented fashion. This paper gives a brief overview on the complete audio part of the MPEG-4 standard and more detailed information on its parts related to speech coding.

[1]  Jürgen Herre,et al.  Extending the MPEG-4 AAC Codec by Perceptual Noise Substitution , 1998 .

[2]  Takehiro Moriya,et al.  High-quality audio coding at less than 64 kbit/s by using TwinVQ , 1995 .

[3]  Bishnu S. Atal,et al.  A new model of LPC excitation for producing natural-sounding speech at low bit rates , 1982, ICASSP.

[4]  Louis Dunn Fielder,et al.  ISO/IEC MPEG-2 Advanced Audio Coding , 1997 .

[5]  Bernhard Grill,et al.  A Bit Rate Scalable Perceptual Coder for MPEG-4 Audio , 1997 .

[6]  L. Nishiguchi,et al.  Harmonic vector excitation coding of speech at 2.0 kbps , 1997, 1997 IEEE Workshop on Speech Coding for Telecommunications Proceedings. Back to Basics: Attacking Fundamental Problems in Speech Coding.

[7]  Eric D. Scheirer.  The MPEG-4 Structured Audio standard , 1998, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181).

[8]  Ed F. Deprettere,et al.  Regular-pulse excitation-A novel approach to effective and efficient multipulse coding of speech , 1986, IEEE Trans. Acoust. Speech Signal Process..

[9]  F. Itakura.  Line spectrum representation of linear predictor coefficients of speech signals , 1975 .