Handbook for Sound Engineers

1272 Chapter 34 coaxial loudspeaker (an actual Q should be used if available). The value of N should be divided by two if each l ...

Sound System Design 1273 In any choice of coverage pattern, room obstacles, microphone locations, and seating area should be con ...

1274 Chapter 34 speaker. In the high-ceiling areas this approach covers each listener with additional loudspeakers. While the de ...

Sound System Design 1275 essentially the same distance from the listener (and thus not acoustically delayed). Design of each clu ...

1276 Chapter 34 leaving little or no power for the high frequencies. The result can be severe amplifier clipping (distortion) of ...

Sound System Design 1277 matter of preventing these two failure modes and protecting it from weather, physical damage, and pests ...

1278 Chapter 34 tion. It may be that a single number is simply not suffi- cient to fully describe a loudspeaker’s power capacity ...

Sound System Design 1279 f is a frequency chosen as follows: If the system is two way (or three way, and so on), choose f equal ...

1280 Chapter 34 Special-purpose DSP processors included with some packaged loudspeaker systems often include sophisti- cated lou ...

Sound System Design 1281 live theater can use this to set up console settings for each scene during rehersal and call them up qu ...

1282 Chapter 34 group with a single fader. Assign the groups to the master left and right outputs to feed the auditorium loudspe ...

Sound System Design 1283 circuitry to perform the automatic mixing process according to (34-32) where, LN is the level in an ind ...

1284 Chapter 34 The significance of this equation is that, while it performs the two functions mentioned previously, it does not ...

Sound System Design 1285 34.4.3.3 Mix-Minus and Matrix Mixing The automatic mixer in Fig. 34-40 includes a matrix output. This e ...

1286 Chapter 34 34.4.4.1 Compressors and Limiters Compressors and limiters are devices that control a sys- tem’s dynamic range ( ...

Sound System Design 1287 For overall sound system equalization, as described in Section 34.5.2.2, an octave-band equalizer may b ...

1288 Chapter 34 34.4.4.5 High-Pass and Low-Pass Filters High-pass filters, also called low-cut filters, pass high frequencies an ...

Sound System Design 1289 example, the loudspeaker processor could maintain a table of specific loudspeaker models with crossover ...

1290 Chapter 34 select the appropriate configuration. This configuration can include equalization but it can also include mixing ...

Sound System Design 1291 34.4.8 Pads and Transformers A pad is a resistor circuit that reduces the output level from a source de ...