Handbook for Sound Engineers

1252 Chapter 34 , LR is the reverberant level in the 2 kHz octave band, LD is the direct sound level in the 2 kHz octave band, L ...

Sound System Design 1253 where, x is any distance, other terms are as before. Example: Let Do = 128 ft, EAD = 4 ft, Q = 5, S = 2 ...

1254 Chapter 34 . (34-25) Some rooms, of course, do not lend themselves to analysis by the given equations. One example is the S ...

Sound System Design 1255 beration times. Eq. 34-26 will accurately predict attenu- ation for distances Dc, which are greater tha ...

1256 Chapter 34 large, and with power amplifiers larger and less expen- sive per watt, many designers now choose vented enclo- s ...

Sound System Design 1257 have become the most popular choice for packaged loudspeaker systems. 34.3.1.4 Packaged Loudspeaker Sys ...

1258 Chapter 34 two-way or three-way enclosures suspended in a verti- cal line. The other type of line array is a column line ar ...

Sound System Design 1259 Most column line arrays are designed from cone-type loudspeaker components or ribbon drivers that have ...

1260 Chapter 34 system should be based on how well that loudspeaker system will accurately reinforce a live performance. For thi ...

Sound System Design 1261 sound system. This is often the case in large indoor sports arenas. 34.3.2.2 Variations on the Central ...

1262 Chapter 34 Left-center-right clusters are commonly used for dramatic performances where actors’ voices are panned from one ...

Sound System Design 1263 34.3.2.8.2 Choosing the Cluster Location The ideal cluster location will probably be approxi- mately ab ...

1264 Chapter 34 34.3.2.8.7 Low-Frequency Loudspeakers and Feedback The published Q for a two-way packaged loudspeaker system is ...

Sound System Design 1265 34.3.2.9.2 Commercial Computer Software Design Tools As personal computers grew in power, the man- ual/ ...

1266 Chapter 34 the design of a complex cluster, but only when all room and loudspeaker data is accurate. In any case, the compl ...

Sound System Design 1267 berant field. Given the direct and reverberant field level at a listener’s position, the answers to Que ...

1268 Chapter 34 phone, then the system will almost certainly feed back. If the total direct plus reverberant level at the micro- ...

Sound System Design 1269 will hear the sound coming from over their heads. That is, the natural localization provided by a centr ...

1270 Chapter 34 system, placed under the balcony, with signal delay, can provide coverage for the under-balcony listeners, Fig. ...

Sound System Design 1271 cally use a 12 or 15 inch coaxial loudspeaker compo- nent, Fig. 34-28. 34.3.3.6.2 Packaged Loudspeaker ...