Specifications
Table Of Contents
- Table of Contents
- List of Figures
- Chapter 1 Introduction
- Chapter 2 Getting Started
- Chapter 3 Production Environment
- Chapter 4 Equipment
- Chapter 5 Production Techniques
- Chapter 6 Preparing the Source Delivery Master
- Chapter 7 Miscellaneous Information
- Appendix A Mix and Mastering Data Sheets
5.1-Channel Production Guidelines Production Environment
3-20
When using an RTA, proper calibration requires setting the LFE channel signal sent
to the subwoofer, within its typical bandwidth of 25–120 Hz, 10 dB higher than the
main channels. Refer to Figure 3-5.
+10 dB
LFE Channel
Center channel
0 dB datum
+10 dB datum
25 Hz 120 Hz 2 kHz
Figure 3-5 Real-Time Analyzer (RTA) Display
If an RTA is not available, setting the LFE channel higher (e.g., ~ 90 to 91 dBc for the
subwoofer channel when the Center channel measures 85 dBc), can give an approximate
level with an SPL meter. This level varies with the quality of the meter being used.