When reproducing a two-dimensional higher order Ambisonic soundfield with a uniformly distributed loudspeaker array, there is a tradeoff that depends on the radius of the reproduction area, the order, and the wave number. For classical first-order Ambisonics, perfect reconstruction is possible in a tiny sweet spot, and filtering can be used with a larger number of loudspeakers. However, for a larger sweet spot, higher order Ambisonics must be used and the number of loudspeakers must be matched to the order because filter compensation is not possible. The number of loudspeakers is a tradeoff between spectral impairment at high frequencies and reproduction errors at low frequencies.
(See document for exact affiliation information.)
https://aes2.org/publications/elibrary-page/?id=14385
(1212KB)
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.
