| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable rate speech coding method for including an identifier in a packet associated with a speech signal.SOLUTION: A received signal is partitioned into a plurality of frames. A frame of the signal is encoded into a packet. A determination is made if the packet is encoded as a wideband packet or as a narrowband packet. An identifier is packed in the packet on the basis of the determination, and the packet is transmitted. At least two illegal values are provided from an N-bit parameter, and at least one bit from the N-bit parameter is used to carry information. The number of bits from the N-bit parameter that are used to carry information is equal to log(X), where X is the number of illegal values provided from the N-bit parameter. |
