Apparatus and method for encoding or decoding AR/VR metadata with generic codebooks

An apparatus (100) for generating one or more audio output signals from one or more encoded audio signals according to an embodiment is provided. The apparatus (100) comprises at least one entropy decoding module (110) for decoding encoded additional audio information, when the encoded additional audio information is entropy-encoded, to obtain decoded additional audio information. Moreover, the apparatus (100) comprises a signal processor (120) for generating the one or more audio output signals depending on the one or more encoded audio signals and depending on the decoded additional audio information.