One of the most used intelligibility's parameters is Speech Transmission Index : the techniques for determining it employs artificial speaker and listener. In many cases ( i.e. big rooms or system of telecommunications) the precision of directivity of artificial mouth doesn't influence too much the result; on the contrary inside cars, but also in other cases, the shape of the whole balloon of directivity is important for determining correct and comparable values and different mouths give really different results in the same situation. Moreover there isn't a current standard that fixes the whole balloon of directivity of artificial mouth but it defines only limits for some frontal position. For this reasons we have determined, in an anechoic room, the directivities of a real speaker and some artificial mouths and finally we have compared them for underlying the need of a more precise standard in this field.
https://www.aes.org/e-lib/browse.cfm?elib=12441
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 and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
Start a discussion about this paper!
