This project examines the effect of the reduced number of A-format audio channels obtained from a spherical microphone array on the overall quality of the 1st and 3rd order Ambisonics. The listening experiment employed four test scenarios involving two recording environments and two microphone positions. The evaluation was carried out using MUSHRA methodology with additional implementation of the scene rotation. The results suggest potential degradation in the quality of the 3rd order Ambisonics when the number of A-format channels is reduced. That was found especially for the recordings made in a controlled environment. No effect of a reduced number of A-format channels was observed for the 1st order Ambisonics in any test scenario.
(See document for exact affiliation information.)
https://aes2.org/publications/elibrary-page/?id=20813
(765KB)
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.
