Wideband speech and audio coding
- 1 November 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Communications Magazine
- Vol. 31 (11) , 34-44
- https://doi.org/10.1109/35.256878
Abstract
Typical parameters of wideband speech and audio signals, including digitized versions of each, potential applications, and available transmission media, are described. Facts about human auditory perception that are exploited in audio coding and quality measures that play an important role in coder evaluations and designs are reviewed. Techniques for efficient coding of wideband speech and audio signals, with an emphasis on existing standards, are discussed. The audio coding standard developed by the Moving Pictures Expert Group within the International Organization for standardization (ISO/MPEG) is covered in some detail, since it will be used in many application areas, including digital storage, transmission, and broadcasting of audio-only signals and audiovisual applications such as videotelephony, videoconferencing, and TV broadcasting. Ongoing research and standardization work is outlined.Keywords
This publication has 10 references indexed in Scilit:
- Audio Quality Determination Based on Perceptual Measurement TechniquesPublished by Springer Nature ,2005
- High-quality audio transform coding at 128 kbits/sPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Coding of wideband speechSpeech Communication, 1992
- Wideband speech coding at 16 kbit/s for a videophone applicationSpeech Communication, 1992
- A 128 Kb/s Hi-Fi audio codec based on adaptive transform coding with adaptive block size MDCTIEEE Journal on Selected Areas in Communications, 1992
- Sum-difference stereo transform codingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1992
- Low-delay code-excited linear-predictive coding of wideband speech at 32 kbpsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1991
- A 7 kHz bandwidth, 32 kbps speech coder for ISDNPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1991
- High quality audio bit-rate reduction system family for different applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1990
- G.722: a new CCITT coding standard for digital transmission of wideband audio signalsIEEE Communications Magazine, 1988