When a directional sound radiator is placed inside a reverberant environment, its directional characteristics are reduced, due to the uniform distribution of reverberant pressure all around the volume. The only way of achieving good directional characteristics in a reverberant environment is to minimise the power that is radiated into the reverberant field. This paper covers the design stage of a personal audio device which is intended to work as an aid for the hearing impaired, needing a large directive index. The simulation of the array’s performance into a reverberant field allows its performance to be estimated at the design stage. The performance of the device is also simulated in terms of Speech Transmission Index (STI), and the array design is optimised to maximise speech intelligibility.
(See document for exact affiliation information.)
https://aes2.org/publications/elibrary-page/?id=16918
(175KB)
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.
