| 摘要 |
A method, system, apparatus and computer program product are provided for improved stereo coding. In particular, the method, system, apparatus and computer program product provide a technique for performing Mid-Side (M/S) stereo coding, in which an additional step is added to the coding process, whereby a parameter that is used in determining when the mid and side signals will be used instead of the left and right input signals is modified prior to making the selection between the signal pairs. In particular, the masking threshold associated with either the left or the right input signal may be modified based on a relationship between the energies of the two input signals, hi addition, once the selection between the signal pairs has been made, the masking thresholds of the selected signals may be further modified, again based on a relationship between the energies of the left and right input signals. |
