Systems and methods for low bit rate audio coders
A technique to enhance audio quality of a quantized audio signal when a perceptual audio coder is operating at low bit rates. The perceptual audio coder uses a modified two-loop quantization technique that maintains audio quality at medium to high bit rates while eliminating artifacts at low bit rat...
Saved in:
Main Authors | , , , |
---|---|
Format | Patent |
Language | English |
Published |
31.03.2005
|
Edition | 7 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | A technique to enhance audio quality of a quantized audio signal when a perceptual audio coder is operating at low bit rates. The perceptual audio coder uses a modified two-loop quantization technique that maintains audio quality at medium to high bit rates while eliminating artifacts at low bit rates. The perceptual audio coder saves vanishing bands by stealing bits from surviving bands to reduce artifacts at low bit rates. |
---|---|
Bibliography: | Application Number: US20040774211 |