Audio Engineering

Room Acoustics 867

The so-called live end dead end approach to control room design uses the aforementioned
techniques to create a refl ection-free zone, enabling sound to be heard directly from
the monitors with a distinct time gap before any room refl ections arrive at the mixing
or prime listening position. Furthermore, such refl ections that do occur are carefully
controlled to ensure that they do not cause sound colorations nor affect the stereo image,
but just add an acoustic liveliness or low-level reverberant sound fi eld, which acts to
reduce listening fatigue and provide better envelopment within the sound fi eld.

20

31 63 125 250

1/3 Octave band centre frequency (Hz)

Frequency (Hz)

500

50 100 200 500 1K 2 K 5 K 10 K 20 K

1K 2K 4K 8K 16K

10 dB

5dB

Figure 29.14 : Frequency response plot of a monitor loudspeaker mounted adjacent to wall.