Buried data techniques can be applied to increase the information density of a CD channel in a backward compatible way. A buried data encoder consisting of a subtractively dithered noise-shaped quantizer encodes an additional service into the CD signal without causing perceptual difference. In this paper we will review the encoder with fixed parameters resulting in a fixed capacity for the additional service. In addition we will describe a method where the encoder parameters are input signal dependent. By exploiting input-signal masking properties a variable capacity of a higher average value is obtained.
(See document for exact affiliation information.)
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.
