Policy on Intellectual Property Right (IPR)
Annex 1 Hierarchy of compatible multichannel sound systems
for broadcasting and recording
Annex 2 Basic requirements
Annex 3 Compatibility
1 Backward compatibility with
existing receivers
2 Downward compatibility with
low-cost receivers
Annex 4 Downward mixing of multichannel audio signals
1 3/2 source signals
Annex 5 Upwards conversion
1 Frontal channels
2 Surround channels
3 Data channel
Annex 6 Additional data
Annex 7 Low frequency effects channel (LFE)
Attachment 1 to Annex 7 (informative) Usage of the low
frequency effects channel (LFE)
1 Introduction
2 Using a subwoofer to extend
frequency range
3 Using the LFE channel to make
an impact
4 Connecting the LFE to the
subwoofer
5 Down-mix of broadcast surround
sound
6 Dolby E LFE and Dolby AC-3 LFE
7 Technical requirements
8 Effects of low-pass filter
(LPF)
Annex 8 Compatibility matrixing and downward mixing