SIGNAL PROCESSING METHOD AND APPARATUS

摘要

The present disclosure provide a signal processing method and apparatus. The method includes: determining a total quantity of to-be-allocated bits corresponding to a current frame; implementing primary bit allocation on to-be-processed sub-bands; performing a primary information unit quantity determining operation for each sub-band that has undergone the primary bit allocation; selecting sub-bands for secondary bit allocation from the to-be-processed sub-bands according to at least one of a sub-band characteristic of each sub-band of the to-be-processed sub-bands or the total quantity of surplus bits; implementing secondary bit allocation on the sub-bands for secondary bit allocation; and performing a secondary information unit quantity determining operation for each sub-band of the sub-bands for secondary bit allocation.

主权项

1. A signal processing method, comprising:
determining a quantity of to-be-allocated bits for sub-bands of a current frame; allocating a quantity of primarily allocated bits for each of the sub-bands according to the quantity of to-be-allocated bits; determining a quantity of surplus bits of the current frame and a quantity of information units for each of the sub-bands according to the quantity of primarily allocated bits; selecting one or more of the sub-bands for secondary bit allocation according to a secondary bit allocation parameter, wherein the secondary bit allocation parameter comprises at least one of the quantity of surplus bits or a sub-band characteristic of each of the sub-bands of the current frame; allocating a quantity of secondarily allocated bits for each of the one or more sub-bands selected for secondary bit allocation according to the quantity of the surplus bits; and determining a quantity of information units for each of the one or more sub-bands according to the quantity of primarily allocated bits of each of the one or more sub-bands and the quantity of secondarily allocated bits of each of the one or more sub-bands.