@article{johnston1988transform,
title={Transform coding of audio signals using perceptual noise criteria},
author={Johnston, James D},
url={https://ieeexplore.ieee.org/abstract/document/608},
urldate={2024-03-30},
DOI={10.1109/49.608},
journal={IEEE Journal on selected areas in communications},
volume={6},
number={2},
pages={314--323},
year={1988},
publisher={IEEE},
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 test.},
}