Parametric spatial audio encoding

Abstract

An apparatus, for encoding an audio object parameter; the apparatus comprising means for: obtaining a ratio parameter associated with a respective audio object within an audio environment, the audio environment comprising at least two audio objects and the ratio parameters configured to identify a distribution of the respective object within the object part of the total audio environment; quantizing the ratio parameters with respect to the audio objects using a first number of bits; generating a vector from a selection of the quantized ratio parameters; and generating an integer value based on an indexing from the vector, wherein the generated integer value represents the ratio parameters for the at least two audio objects.