Handbook for Sound Engineers

132 Chapter 6 However 282 Hz is also a problem frequency because it is separated by more than 20 Hz on either side. 6.4 Criteria ...

Small Room Acoustics 133 or more modes in that octave band. By applying Bonello’s method to the 23 ft × 17 ft × 9 ft room, we ob ...

134 Chapter 6 compared to a 95.3 Hz mode in the nonrectangular room. Fig. 6-10 shows the 0,3,0 mode at 102.9 Hz of a rectangular ...

Small Room Acoustics 135 should also be applied to all the modes, the axial, tangential, and oblique. There are many excellent t ...

136 Chapter 6 Fig. 6-11 is an Envelope* Time Curve of a large, reverberant room, measured using time delay spectrom- etry. The l ...

Small Room Acoustics 137 by the first mode on the low end of the spectrum and f at the high end, where f| 3 C/RSD (rooms smalles ...

138 Chapter 6 strictly speaking, reverberation and should be treated as such. The Sabine equation and its offspring are not goin ...

Small Room Acoustics 139 an elegant way to model the reflections in a room. The reflection can be considered to come from an ima ...

140 Chapter 6 have a significant impact on the ability to accurately perceive a stereo image. Although Barron did not look at th ...

Small Room Acoustics 141 Examples of rooms in this category are recording control rooms, mastering suites, and audio production ...

142 Chapter 6 part of the design criteria. There are a few general rules that will help with the acoustics of these small rooms: ...

Small Room Acoustics 143 References L. L. Beranek, Acoustics, Second Edition, New York: McGraw-Hill, 1986. Ibid. p. 292. O. J. ...

144 Kishinaga, Shimizu, Ando, and Yamaguchi, “On the Room Acoustic Design of Listening Rooms,” Audio Engineering Society 64th C ...

145 Chapter 7 Acoustics for Auditoriums and Concert Halls by Dr. Wolfgang Ahnert and Hans-Peter Tennhardt 7.1 Introduction...... ...

146 7.3.4 Secondary Structure of Rooms........................................................... 178 7.3.4.1 Sound Reflections ...

Acoustics for Auditoriums and Concert Halls 147 7.1 Introduction With musical or spoken performances in auditoriums and concert ...

148 Chapter 7 a very spatial and reverberating sound in a large cathe- dral, whereas one expects a dry sound in the open. Thus d ...

Acoustics for Auditoriums and Concert Halls 149 1000 Hz or the four octave bandwidths 500 Hz, 630 Hz, 800 Hz, and 1000 Hz, and r ...

150 Chapter 7 where, RT 60 is the reverberation time in seconds, V is the room volume in cubic meters (cubic feet), Atot is the ...

Acoustics for Auditoriums and Concert Halls 151 reverberation time. With the same room volume and the same equivalent sound abso ...