1. A method comprising:', 'obtaining decomposed interpolated spherical harmonic coefficients for a time segment by, at least in part, performing an interpolation with respect to a first decomposition of a first plurality of spherical harmonic coefficients and a second decomposition of a second plurality of spherical harmonic coefficients.

2. The method of claim 1, wherein the first decomposition comprises a first V matrix representative of right-singular vectors of the first plurality of spherical harmonic coefficients.

3. The method of claim 1, wherein the second decomposition comprises a second V matrix representative of right-singular vectors of the second plurality of spherical harmonic coefficients.

4. The method of claim 1,', 'wherein the first decomposition comprises a first V matrix representative of right-singular vectors of the first plurality of spherical harmonic coefficients, and', 'wherein the second decomposition comprises a second V matrix representative of right-singular vectors of the second plurality of spherical harmonic coefficients.

5. The method of claim 1, wherein the time segment comprises a sub-frame of an audio frame.

6. The method of claim 1, wherein the time segment comprises a time sample of an audio frame.

7. The method of claim 1, wherein obtaining the decomposed interpolated spherical harmonic coefficients for the time segment comprises obtaining an interpolated decomposition of the first decomposition and the second decomposition for a spherical harmonic coefficient of the first plurality of spherical harmonic coefficients.

8. The method of claim 1, wherein obtaining the decomposed interpolated spherical harmonic coefficients for the time segment comprises obtaining interpolated', 'decompositions of the first decomposition for a first portion of the first plurality of spherical harmonic coefficients included in the first frame and the second', 'decomposition for a second portion of the second plurality of spherical harmonic coefficients included in the second frame, the method further comprising:', 'applying the interpolated decompositions to a first time component of the first portion of the first plurality of spherical harmonic coefficients included in the first frame to generate a first artificial time component of the first plurality of spherical harmonic coefficients; and', 'applying the respective interpolated decompositions to a second time component of the second portion of the second plurality of spherical harmonic coefficients included in the second frame to generate a second artificial time component of the second plurality of spherical harmonic coefficients included.

9. The method of claim 8, wherein the first time component is generated by performing a vector-based synthesis with respect to the first plurality of spherical harmonic coefficients

10. The method of claim 8, wherein the second time component is generated by performing a vector-based synthesis with respect to the second plurality of spherical harmonic coefficients

11. The method of claim 8, further comprising:', 'receiving, by a decoder, the first artificial time component and the second artificial time component;', 'computing, by the decoder, interpolated decompositions of the first', 'decomposition for the first portion of the first plurality of spherical harmonic', 'coefficients and the second decomposition for the second portion of the second plurality of spherical harmonic coefficients; and', 'applying inverses of the interpolated decompositions to the first artificial time component to recover the first time component and to the second artificial time component to recover the second time component

12. The method of claim 1, wherein obtaining the decomposed interpolated spherical harmonic coefficients for the time segment comprises interpolating a first spatial component of the first plurality of spherical harmonic coefficients and the second spatial component of the second plurality of spherical harmonic coefficients

13. The method of claim 12,', 'wherein the first spatial component is representative of M time segments of spherical harmonic coefficients for the first plurality of spherical harmonic coefficients and the second spatial component is representative of M time segments of spherical harmonic coefficients for the second plurality of spherical harmonic coefficients

14. The method of claim 12,', 'wherein the first spatial component is representative of M time segments of spherical harmonic coefficients for the first plurality of spherical harmonic coefficients and the second spatial component is representative of M time segments of spherical harmonic coefficients for the second plurality of spherical harmonic coefficients, and wherein obtaining the decomposed interpolated spherical harmonic coefficients for the time segment comprises interpolating the last N elements of the first spatial component and the first N elements of the second spatial component

15. The method of claim 1, wherein the second plurality of spherical harmonic coefficients are subsequent to the first plurality of spherical harmonic coefficients in the time domain

16. The method of claim 1, further comprising performing a singular value decomposition with respect to the first plurality of spherical harmonic coefficients to generate a U matrix representative of left-singular vectors of the first plurality of spherical harmonic coefficients, an S matrix representative of singular values of the first plurality of spherical harmonic coefficients and a V matrix representative of right- singular vectors of the first plurality of spherical harmonic coefficients

17. The method of claim 1, further comprising performing a singular value decomposition with respect to the second plurality of spherical harmonic coefficients to generate a U matrix representative of left-singular vectors of the second plurality of

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

18. The method of claim 1 , wherein the first and second plurality of spherical harmonic coefficients each represent a planar wave representation of the sound field

19. The method of claim 1, wherein the first and second plurality of spherical harmonic coefficients each represent one or more mono-audio objects mixed together.

20. The method of claim 1, wherein the first and second plurality of spherical harmonic coefficients each comprise respective first and second spherical harmonic coefficients that represent a three dimensional sound field.

21. The method of claim 1 , wherein the first and second plurality of spherical harmonic coefficients are each associated with at least one spherical basis function having an order greater than one.

22. The method of claim 1, wherein the first and second plurality of spherical harmonic coefficients are each associated with at least one spherical basis function having an order equal to four.

23. The method of claim 1, wherein the interpolation is a weighted interpolation of the first decomposition and second decomposition, wherein weights of the weighted interpolation applied to the first decomposition are inversely proportional to a time represented by vectors of the first and second decomposition and wherein weights of the weighted interpolation applied to the second decomposition are proportional to a time represented by vectors of the first and second decomposition.

24. The method of claim 1, wherein the decomposed interpolated spherical harmonic coefficients smooth at least one of spatial components and time components of the first plurality of spherical harmonic coefficients and the second plurality of spherical harmonic coefficients.

25. The method of claim 1, wherein obtaining decomposed interpolated spherical harmonic coefficients for the time segment comprises computing Usn = HOA(n) * (V_vecn)_1 to obtain a scalar.

26. The method of claim 1, further comprising:', 'generating a bitstream that includes:', '(1) a representation of the decomposed interpolated spherical harmonic', 'coefficients for the time segment; and', '(2) an indication of a type of the interpolation.

27. The method of claim 26, wherein the indication comprises one or more bits that map to the type of interpolation.

28. The method of claim 1, further comprising:', 'obtaining a bitstream that includes', '(1) a representation of the decomposed interpolated spherical harmonic', 'coefficients for the time segment; and', '(2) an indication of a type of the interpolation.

29. The method of claim 28, wherein the indication comprises one or more bits that map to the type of interpolation.

30. A device comprising:', 'one or more processors configured to obtain decomposed interpolated spherical harmonic coefficients for a time segment by, at least in part, performing an interpolation with respect to a first decomposition of a first plurality of spherical harmonic coefficients and a second decomposition of a second plurality of spherical harmonic coefficients.

31. The device of claim 30, wherein the first decomposition comprises a first V matrix representative of right-singular vectors of the first plurality of spherical harmonic coefficients.

32. The device of claim 30, wherein the second decomposition comprises a second V matrix representative of right-singular vectors of the second plurality of spherical harmonic coefficients.

33. The device of claim 30,', 'wherein the first decomposition comprises a first V matrix representative of right-singular vectors of the first plurality of spherical harmonic coefficients, and', 'wherein the second decomposition comprises a second V matrix representative of right-singular vectors of the second plurality of spherical harmonic coefficients.

34. The device of claim 30, wherein the time segment comprises a time sample of an audio frame.

35. The device of claim 30, wherein the one or more processors are configured to obtain an interpolated decomposition of the first decomposition and the second decomposition for a spherical harmonic coefficient of the first plurality of spherical harmonic coefficients.

36. The device of claim 30,', 'wherein the one or more processors are configured to obtain interpolated', 'decompositions of the first decomposition for a first portion of the first plurality of spherical harmonic coefficients included in the first frame and the second', 'decomposition for a second portion of the second plurality of spherical harmonic coefficients included in the second frame, and', 'wherein the one or more processors are further configured to apply the interpolated decompositions to a first time component of the first portion of the first plurality of spherical harmonic coefficients included in the first frame to generate a first artificial time component of the first plurality of spherical harmonic coefficients, and apply the respective interpolated decompositions to a second time component of the second portion of the second plurality of spherical harmonic coefficients included in the second frame to generate a second artificial time component of the second plurality of spherical harmonic coefficients included.

37. The device of claim 36, wherein the first time component is generated by performing a vector-based synthesis with respect to the first plurality of spherical harmonic coefficients.

38. The device of claim 36, wherein the second time component is generated by performing a vector-based synthesis with respect to the second plurality of spherical harmonic coefficients.

39. The device of claim 36, wherein the one or more processors are further configured to receive the first artificial time component and the second artificial time component, compute interpolated decompositions of the first decomposition for the first portion of the first plurality of spherical harmonic coefficients and the second decomposition for the second portion of the second plurality of spherical harmonic coefficients, and apply inverses of the interpolated decompositions to the first artificial time component to recover the first time component and to the second artificial time component to recover the second time component.

40. The device of claim 30, wherein the one or more processors are configured to interpolate a first spatial component of the first plurality of spherical harmonic coefficients and the second spatial component of the second plurality of spherical harmonic coefficients.

41. The device of claim 40, wherein the first spatial component comprises a first U matrix representative of left-singular vectors of the first plurality of spherical harmonic coefficients.

42. The device of claim 40, wherein the second spatial component comprises a second U matrix representative of left-singular vectors of the second plurality of spherical harmonic coefficients.

43. The device of claim 40,', 'wherein the first spatial component is representative of M time segments of spherical harmonic coefficients for the first plurality of spherical harmonic coefficients

and the second spatial component is representative of M time segments of spherical harmonic coefficients for the second plurality of spherical harmonic coefficients.

44. The device of claim 40,', 'wherein the first spatial component is representative of M time segments of spherical harmonic coefficients for the first plurality of spherical harmonic coefficients and the second spatial component is representative of M time segments of spherical harmonic coefficients for the second plurality of spherical harmonic coefficients, and wherein the one or more processors are configured to interpolate the last N elements of the first spatial component and the first N elements of the second spatial component.

45. The device of claim 30, wherein the second plurality of spherical harmonic coefficients are subsequent to the first plurality of spherical harmonic coefficients in the time domain.

46. The device of claim 30, wherein the one or more processors are further configured to decompose the first plurality of spherical harmonic coefficients to generate the first decomposition of the first plurality of spherical harmonic coefficients.

47. The device of claim 30, wherein the one or more processors are further configured to decompose the second plurality of spherical harmonic coefficients to generate the second decomposition of the second plurality of spherical harmonic coefficients.

48. The device of claim 30, wherein the first and second plurality of spherical harmonic coefficients each represent a planar wave representation of the sound field.

49. The device of claim 30, wherein the first and second plurality of spherical harmonic coefficients each represent one or more mono-audio objects mixed together.

50. The device of claim 30, wherein the first and second plurality of spherical harmonic coefficients are each associated with at least one spherical basis function having an order greater than one.

51. The device of claim 30, wherein the first and second plurality of spherical harmonic coefficients are each associated with at least one spherical basis function having an order equal to four.

52. The device of claim 30, wherein the one or more processors are configured to compute Usn = HOA(n) * (V_vecn)_1 to obtain a scalar.

53. The device of claim 30, wherein the one or more processors are further configured to generate a bitstream that includes a representation of the decomposed interpolated spherical harmonic coefficients for the time segment, and an indication of a type of the interpolation.

54. The device of claim 53, wherein the indication comprises one or more bits that map to the type of interpolation.

54. The device of claim 55, wherein the indication comprises one or more bits that map to the type of interpolation.

55. A device comprising:', 'means for storing a first plurality of spherical harmonic coefficients and a second plurality of spherical harmonic coefficients; and', 'means for obtain decomposed interpolated spherical harmonic coefficients for a time segment by, at least in part, performing an interpolation with respect to a first decomposition of the first plurality of spherical harmonic coefficients and the second decomposition of a second plurality of spherical harmonic coefficients.

55. The device of claim 30, wherein the one or more processors are further configured to obtain a bitstream that includes a representation of the decomposed interpolated spherical harmonic coefficients for the time segment, and an indication of a type of the interpolation.

56. A non-transitory computer-readable storage medium having stored thereon instructions that, when executed, cause one or more processors to:

obtain decomposed interpolated spherical harmonic coefficients for a time segment by, at least in part, performing an interpolation with respect to a first decomposition of a first plurality of spherical harmonic coefficients and a second decomposition of a second plurality of spherical harmonic coefficients.']