Transform coding of audio signals using perceptual noise criteria
- 1 January 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal on Selected Areas in Communications
- Vol. 6 (2), 314-323
- https://doi.org/10.1109/49.608
Abstract
A 4-b/sample transform coder is designed using a psychoacoustically derived noise-making threshold that is based on the short-term spectrum of the signal. The coder has been tested in a formal subjective test involving a wide selection of monophonic audio inputs. The signals used in the test were of 15-kHz bandwidth, sampled at 32 kHz. The bit rate of the resulting coder was 128 kb/s. The subjective test shows that the coded signal could not be distinguished from the original at that bit rate. Subsequent informal work suggests that a bit rate of 96 kb/s may maintain transparency for the set of inputs used in the testKeywords
This publication has 9 references indexed in Scilit:
- Application of quadrature mirror filters to split band voice coding schemesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Testing of wideband digital codersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A comparative study of the proposed high quality coding schemes for digital musicPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- The design of uniformly and nonuniformly spaced pseudoquadrature mirror filtersIEEE Transactions on Acoustics, Speech, and Signal Processing, 1986
- Subband coding with adaptive prediction for 56 kbits/s audioIEEE Transactions on Acoustics, Speech, and Signal Processing, 1986
- Optimizing digital speech coders by exploiting masking properties of the human earThe Journal of the Acoustical Society of America, 1979
- Asymmetry of masking between noise and tonePerception & Psychophysics, 1972
- Critical Bandwidth and the Frequency Coordinates of the Basilar MembraneThe Journal of the Acoustical Society of America, 1961
- Auditory PatternsReviews of Modern Physics, 1940