1. A method comprising:', 'obtaining one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors generated at least by performing a transformation with respect to a plurality of spherical harmonic coefficients.

2. The method of claim 1, wherein the transformation comprises a singular value decomposition that generates a U matrix representative of left-singular vectors of the plurality of spherical harmonic coefficients, an S matrix representative of singular values of the plurality of spherical harmonic coefficients and a V matrix representative of right-singular vectors of the plurality of spherical harmonic coefficients.

3. The method of claim 2,', 'wherein the one or more first vectors comprise one or more audio encoded 1½ST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and', 'wherein the U matrix and the S matrix are generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients.

4. The method of claim 3, further comprising audio decoding the one or more audio encoded UDIST * SDIST vectors to generate an audio decoded version of the one or more audio encoded UDIST * SDIST vectors.

5. The method of claim 2, wherein the one or more first vectors comprise one or more audio encoded UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and one or more VT DIST vectors of a transpose of a V matrix, and

wherein the U matrix and the S matrix and the V matrix are generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients.

6. The method of claim 5, further comprising audio decoding the one or more audio encoded 1½ST * SDIST vectors to generate an audio decoded version of the one or more audio encoded 1½ST * SDIST vectors.

7. The method of claim 6, further comprising multiplying the 1½ST * SDIST vectors by the VT DIST vectors to recover those of the plurality of spherical harmonics', 'representative of the distinct components of the soundfield.

8. The method of claim 2,', 'wherein the one or more second vectors comprise one or more audio encoded UBG * SBG * VT BG vectors that, prior to audio encoding, were generating by multiplying UBG vectors included within a U matrix by SBG vectors included within an S matrix and then by VT BG vectors included within a transpose of a V matrix, and', 'wherein the S matrix, the U matrix and the V matrix were each generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients.

9. The method of claim 2,', 'wherein the one or more second vectors comprise one or more audio encoded UBG * SBG * VT BG vectors that, prior to audio encoding, were generating by multiplying UBG vectors included within a U matrix by SBG vectors included within an S matrix and then by VT BG vectors included within a transpose of a V matrix, and', 'wherein the S matrix, the U matrix and the V matrix were generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients, and', 'wherein the method further comprises audio decoding the one or more audio encoded UBG * SBG * VTBG vectors to generate one or more audio decoded UBG * SBG * VTBG vectors

10. The method of claim 2,', 'wherein the one or more first vectors comprise one or more audio encoded UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and one or more VT DIST vectors of a transpose of a V matrix,', 'wherein the U matrix, the S matrix and the V matrix were generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients, and', 'wherein method further comprises:', 'audio decoding the one or more audio encoded UDIST * SDIST vectors to generate the one or more UDIST * SDIST vectors; and', 'multiplying the UDIST * SDIST vectors by the VT DIST vectors to recover those of the plurality of spherical harmonic coefficients that describe the distinct components of the soundfield,', 'wherein the one or more second vectors comprise one or more audio encoded UBG * SBG * VT BG vectors that, prior to audio encoding, were generating by multiplying UBG vectors included within the U matrix by SBG vectors included within the S matrix and then by VT BG vectors included within the transpose of the V matrix, and', 'wherein the method further comprises:', 'audio decoding the one or more audio encoded UBG * SBG * VT BG vectors to recover at least a portion of the plurality of the spherical harmonic coefficients that describe background components of the soundfield; and', 'adding the plurality of spherical harmonic coefficients that describe the distinct components of the soundfield to the at least portion of the plurality of the spherical harmonic coefficients that describe background components of the soundfield to generate a reconstructed version of the plurality of spherical harmonic coefficients

11. The method of claim 2,', 'wherein the one or more first vectors comprise one or more UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and one or more VT DIST vectors of a transpose of a V matrix,

wherein the U matrix, the S matrix and the V matrix were generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients, and', 'wherein the method further comprises determining a value D indicating the number of vectors to be extracted from a bitstream to form the one or more UDIST * SDIST vectors and the one or more VTDIST vectors

12. The method of claim 2,', 'wherein the one or more first vectors comprise one or more UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and one or more VT DIST vectors of a transpose of a V matrix,', 'wherein the U matrix, the S matrix and the V matrix were generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients, and', 'wherein the method further comprises determining a value D on an audio-frame- by-audio-frame basis that indicates the number of vectors to be extracted from a bitstream to form the one or more UDIST * SDIST vectors and the one or more VT DIST vectors

13. The method of claim 2, wherein the transformation comprises a principal component analysis to identify the distinct components of the soundfield and the background components of the soundfield

14. A device comprising:', 'one or more processors configured to determine one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors generated at least by performing a transformation with respect to a plurality of spherical harmonic coefficients

15. The device of claim 14, wherein the transformation comprises a singular value decomposition that generates a U matrix representative of left-singular vectors of the plurality of spherical harmonic coefficients, an S matrix representative of singular

values of the plurality of spherical harmonic coefficients and a V matrix representative of right-singular vectors of the plurality of spherical harmonic coefficients

16. The device of claim 15,', 'wherein the one or more first vectors comprise one or more audio encoded UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and', 'wherein the U matrix and the S matrix are generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients.17. The device of claim 16, wherein the one or more processors are further configured to audio decode the one or more audio encoded UDIST * SDIST vectors to generate an audio decoded version of the one or more audio encoded UDIST * SDIST vectors.18. The device of claim 15, wherein the one or more first vectors comprise one or more audio encoded UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and one or more VT DIST vectors of a transpose of a V matrix, and', 'wherein the U matrix and the S matrix and the V matrix are generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients.19. The device of claim 18, wherein the one or more processors are further configured to audio decode the one or more audio encoded UDIST * SDIST vectors to generate an audio decoded version of the one or more audio encoded UDIST * SDIST vectors.

20. The device of claim 19, further comprising multiplying the UDIST * SDIST vectors by the VT DIST vectors to recover those of the plurality of spherical harmonics representative of the distinct components of the soundfield.

21. The device of claim 15,', 'wherein the one or more second vectors comprise one or more audio encoded UBG * SBG * VT BG vectors that, prior to audio encoding, were generating by multiplying UBG vectors included within a U matrix by SBG vectors included within an S matrix and then by VT BG vectors included within a transpose of a V matrix, and', 'wherein the S matrix, the U matrix and the V matrix were each generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients.

22. The device of claim 15,', 'wherein the one or more second vectors comprise one or more audio encoded UBG * SBG * VT BG vectors that, prior to audio encoding, were generating by multiplying UBG vectors included within a U matrix by SBG vectors included within an S matrix and then by VT BG vectors included within a transpose of a V matrix, and', 'wherein the S matrix, the U matrix and the V matrix were generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients, and', 'wherein the one or more processors are further configured to audio decode the one or more audio encoded UBG * SBG * VT BG vectors to generate one or more audio decoded UBG * SBG * VT BG vectors.

23. The device of claim 15,', 'wherein the one or more first vectors comprise one or more audio encoded UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and one or more VT DIST vectors of a transpose of a V matrix,', 'wherein the U matrix, the S matrix and the V matrix were generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients, and', 'wherein the one or more processors are further configured to audio decode the one or more audio encoded UDIST * SDIST vectors to generate the one or more UDIST * SDIST vectors, and multiply the UDIST * SDIST vectors by the VT DIST vectors to recover

those of the plurality of spherical harmonic coefficients that describe the distinct components of the soundfield,', 'wherein the one or more second vectors comprise one or more audio encoded UBG * SBG * T BG vectors that, prior to audio encoding, were generating by multiplying UBG vectors included within the U matrix by SBG vectors included within the S matrix and then by VT BG vectors included within the transpose of the V matrix, and', 'wherein the one or more processors are further configured to audio decode the one or more audio encoded UBG * SBG * VT BG vectors to recover at least a portion of the plurality of the spherical harmonic coefficients that describe background components of the soundfield, and add the plurality of spherical harmonic coefficients that describe the distinct components of the soundfield to the at least portion of the plurality of the spherical harmonic coefficients that describe background components of the soundfield to generate a reconstructed version of the plurality of spherical harmonic coefficients.

24. The device of claim 15,', 'wherein the one or more first vectors comprise one or more UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and one or more VT DIST vectors of a transpose of a V matrix,', 'wherein the U matrix, the S matrix and the V matrix were generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients, and', 'wherein the one or more processors are further configured to obtain a value D indicating the number of vectors to be extracted from a bitstream to form the one or more UDIST * SDIST vectors and the one or more VT DIST vectors.

25. The device of claim 15,', 'wherein the one or more first vectors comprise one or more UDIST * SDIST vectors that, prior to audio encoding, were generated by multiplying one or more audio encoded UDIST vectors of a U matrix by one or more SDIST vectors of an S matrix, and one or more VT DIST vectors of a transpose of a V matrix,', 'wherein the U matrix, the S matrix and the V matrix were generated at least by performing the singular value decomposition with respect to the plurality of spherical harmonic coefficients, and

wherein the one or more processors are further configured to obtain a value D on an audio-frame-by-audio-frame basis that indicates the number of vectors to be extracted from a bitstream to form the one or more UDIST * SDIST vectors and the one or more VT DIST vectors.

26. The device of claim 25, wherein the transformation comprises a principal component analysis to identify the distinct components of the soundfield and the background components of the soundfield.

27. A device comprising:', 'means for obtaining one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors generated at least by performing a transformation with respect to a plurality of spherical harmonic coefficients; and', 'means for storing the one or more first vectors.

28. A non-transitory computer-readable storage medium having stored thereon instructions that, when executed, cause one or more processors to:', 'obtain one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors generated at least by performing a transformation with respect to a plurality of spherical harmonic coefficients.']