METHOD AND DEVICE FOR DECODING A COMPRESSED AUDIO REPRESENTATION OF A SOUND OR A SOUND FIELD USING HOA

Claims

1. A method for decoding a compressed audio representation of a sound recording that creates a "presence effect" of higher order audio (HOA) or sound field, the method comprising: receiving a bit stream containing a compressed audio representation of the HOA; and Least Integer Compressed Audio Representation Decoding , while the smallest integer determined on the basis of , at the same time , Where - the order of the compressed audio representation of HOA, where - the maximum order of interest of the compressed audio representation of HOA, where - directions of virtual loudspeakers for reproducing the sound presentation of the HOA, while , and where - the ratio of the square of the Euclidean norm mode matrix of virtual loudspeaker positions to .

2. The method according to paragraph 1, characterized in that at least the value ( ) the non-differential gain associated with the audio representation of the NOA is transmitted as additional information in the bit stream, and the non-differential gain value is represented bits.

3. A non-volatile machine-readable data carrier containing instructions that, when executed by a processor, perform the method according to paragraph 1.

4. A device for decoding a compressed audio representation of a sound recording that creates a "presence effect" of higher order audio (HOA) sound or a sound field, the device comprising: a receiver for receiving a bit stream containing a compressed audio representation of the HOA; and a decoder for decoding the compressed audio representation of HOA based on the least integer , while the smallest integer determined on the basis of , at the same time , Where - the order of the compressed audio representation of HOA, where - the maximum order of interest of the compressed audio representation of HOA, where - directions of virtual loudspeakers for reproducing the sound presentation of the HOA, while , and where - the ratio of the square of the Euclidean norm mode matrix of virtual loudspeaker positions to .

5. A method for decoding a compressed audio representation of a sound recording that creates a "presence effect" of higher order audio (HOA) of sound or a sound field, the method comprising: receiving a bit stream containing a compressed representation of the HOA and decoding the compressed representation of the HOA to determine perceptually decoded signals, at least a corresponding gain correction indicator and at least a gain correction exclusion flag; determining gain-corrected signal frames based on gain control feedback of the perceptually decoded signals, a corresponding gain-corrected value, and a gain-corrected exclusion flag; and redistribution of signal frames with gain correction to determine the frame of dominant sound signals and the frame of intermediate components of the HOA environment.