Parametric stereo coding (PS) and MPEG Surround (MPS) are used to reconstruct stereo or multi-channel signals from down-mixed signals with the spatial parameters. These spatial parameters are transmitted based on the resolution of the time-frequency (T-F) tile. The T-F resolution controls the accuracy of reconstructed spatial scenes and the amount of consumed bits. In PS and MPS coding, the up-mixing matrices based on the spatial parameters for time slots not transmitted are reconstructed in decoder by interpolating the neighboring up-mixing matrices. The estimation of the spatial parameters on time-frequency tile with consideration to the interpolation errors is another issue. This paper proposes a generic dynamic programming method to decide the time-frequency tile and the transmitted parameter values.
https://www.aes.org/e-lib/browse.cfm?elib=14927
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 and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
Start a discussion about this paper!