EXTRACTING DECOMPOSED REPRESENTATIONS OF A SOUND FIELD BASED ON A SECOND CONFIGURATION MODE

摘要

In general, techniques are described for obtaining spherical harmonic coefficients (SHC). A device comprising a processor and a memory may be configured to perform the techniques. The processor may obtain a set of coefficients of a vector representative a distinct component of a sound field, the vector having been decomposed from SHC representative of the sound field. The processor may obtain a configuration mode by which to extract the coefficients, where the configuration mode indicates that the coefficients include coefficients corresponding to an order greater than an order of a basis function to which one or more of the spherical harmonic coefficients correspond and exclude at least one of the coefficients corresponding to a greater order. The processor may extract the coefficients of the vector based on the obtained configuration mode. The memory may be configured to store the non-zero set of the coefficients of the vector.

主权项

1. A device comprising:
one or more processors configured to:
obtain a non-zero set of coefficients of a vector representative a distinct component of a sound field, the vector having been decomposed from a plurality of spherical harmonic coefficients that describe the sound field;obtain one of a plurality of configuration modes by which to extract the non-zero set of coefficients of the vector in accordance with the one of the plurality of configuration modes, wherein the one of the plurality of configuration modes indicates that the non-zero set of the coefficients include those of the coefficients corresponding to an order greater than an order of a basis function to which one or more of the plurality of spherical harmonic coefficients correspond and exclude at least one of the coefficients corresponding to an order greater than the order of the basis function to which the one or more of the plurality of spherical harmonic coefficients correspond; andextract the non-zero set of the coefficients of the vector based on the obtained one of the plurality of configuration modes; and a memory coupled to the one or more processors, and configured to store the extracted non-zero set of the coefficients.