Audio Coding Using Perceptually Controlled Bitstream Buffering

Faller C. Audio Coding Using Perceptually Controlled Bitstream Buffering. In: AES Convention 111. Audio Engineering Society; 2001. Paper 5437. Available from: https://aes.org/publications/elibrary-page/?id=9890

@inproceedings{Faller2001_9890,
  author = {Faller, Christof},
  title = {{Audio Coding Using Perceptually Controlled Bitstream Buffering}},
  booktitle = {AES Convention 111},
  note = {Paper 5437},
  year = {2001},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=9890}
}

TY  - CPAPER
TI  - Audio Coding Using Perceptually Controlled Bitstream Buffering
AU  - Faller, Christof
T2  - AES Convention 111
M1  - Paper 5437
PY  - 2001
DA  - 2001/11/06
UR  - https://aes.org/publications/elibrary-page/?id=9890
PB  - Audio Engineering Society
LA  - en
AB  - Perceptual audio coders use a varying number of bits to encode subsequent frames according to the perceptual entropy of the audio signal. For transmission over a constant bitrate channel the bitstream must be buffered. The buffer must be large enought to absorb variations in the bitrate, otherwise the quality of the audio will be compromised. We present a new scheme for buffer control of perceptual audio coders. In contrast to conventional schemes, the proposed scheme systematically reduces the variation in a perceptual distortion measure over time. The new scheme applied to a perceptual audio coder (PAC) improves the quality of the encoded signal for a given buffer size. The same technique can be used to increase the performance of other coders such as MPEG-1 Layer III or MPEG-2 AAC while maintaining backward compatibility.
ER  -