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This option is available for MPEG-1 Layer II only. This applies a technique called intensity coding. The human ear is not as good at
locating higher frequencies as it is lower ones. The use of this mode may introduce more artefacts than stereo.
Stereo [2/0]
This mode treats the incoming audio signal as a left and right channel that the viewer will listen to simultaneously. Practically, these
stereo signals can be uncorrelated where they are coded separately or related where they combined into a sum and difference
channel and each is coded separately.
MPEG-1 Layer II Coding Bit Rates
The following table gives the coding modes and bit rates for MPEG-1 Layer II:
Dolby Digital Encoding
The VCMs support the following coding modes for Dolby Digital encoding:
Mono 1/0 (centre, from left)
Mono1/0 (centre, from right)
Stereo 2/0 (left, right)
The following table gives the coding modes and bit rates for Dolby Digital encoding.
Bit rate
(kbps)
Mono (Left or Right) Dual Mono Stereo Joint Stereo
32 √ X X X
48 √ X X X
56 √ X X X
64 √ √ √ √
80 √ X X X
96 √ √ √ √
112 √ √ √ √
128 √ √ √ √
160 √ √ √ √
192 √ √ √ √
224 X √ √ √
256 X √ √ √
320 X √ √ √
384 X √ √ √
Bit
rate
(kbps)
Single Channel Mono
(1/0)
(Left or Right)
Dual Channel Stereo (2/0)
56 √ X
64 √ X
80 √ X
© Ericsson AB 2011. All rights reserved
© Ericsson AB 2011. All rights reserved
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Cover
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- Video Processor 1
- Preliminary Information 1
- Scope of This Information 2
- About this Information 3
- Trademarks 3
- Warnings, Cautions and Notes 4
- Contact Information 5
- EN55022 and CISPR22 6
- Read This First! 6
- Introduction 7
- License Keys 7
- Single AC PSU Base Chassis 9
- Overview 10
- Dual AC PSU Base Chassis 10
- Option Cards 12
- Option Card Combinations 12
- Slot Numbering 13
- EN7100 SD MPEG-2 VCM Module 13
- Summary of Features 14
- SD MPEG-2 Video Encoding 15
- Audio Encoding 16
- Audio Encoding Modes 17
- EN8100 SD MPEG-2 VCM Module 19
- Indications 27
- Ancillary Data 27
- Audio Compression 27
- External Sync Input 29
- Installing the Equipment 29
- Preliminary Checks 30
- Mechanical Inspection 30
- Moving the Equipment Safely 30
- Site Requirements 30
- AC Power Supply 31
- Supply Cord 31
- Wire Colours 31
- Power Consumption 32
- Lightning Protection 33
- Mounting in a Rack 33
- Handling and Lifting 34
- Care in Positioning 34
- Airflow Through the Unit 35
- External Interfaces 36
- Chassis/Host 37
- Front Panel 38
- Control Ethernet 39
- Data Ethernet 40
- Power Requirements 41
- USB Connector 42
- Video Input 42
- Audio Input 43
- ASI I/O Module 46
- Getting Started 47
- IP Address Restrictions 48
- Equipment Setup [nCompass] 50
- Autodiscovery 51
- Connections 52
- Get Static Parameters 53
- Configure Multicasts 54
- First Profile - Video 55
- Profile Manager 55
- Encoder Type 56
- Description Tab 57
- General Video Configuration 58
- Bit rates 59
- Bit Rates Tab 60
- VBI/VANC 61
- Default/Spare Devices 62
- Equipment Status Monitor 63
- Available Devices 64
- Static Parameter Issues 65
- Backwards Compatibility 66
- Multiplexer 66
- Multi Video Index 67
- Transport Stream Output 67
- Transport Stream Parameters 69
- IP Port 70
- Pro MPEG FEC 70
- Background 71
- Transport Stream 72
- Services 72
- Coded Elementary Stream 73
- Audio Output 74
- Transport Packets 74
- VBI Data on a Separate PID 75
- PID Assignment 75
- Operation and Control 75
- Navigate Mode 78
- Edit Mode 78
- Front Panel Menus 79
- User Access 79
- Ethernet: Control 80
- Ethernet Data Ports 81
- Ethernet: Data 81
- Data Input 82
- Data Output 82
- Data Network Redundancy 83
- Components 84
- Service 84
- Configuring Option Cards 85
- Encoding 88
- Dolby Metadata Presets 91
- Dolby E Transcode 92
- Video Pre-Processing 95
- Video Encoding 100
- Stream Output 101
- Video Stream Output 102
- Lookahead Delay 104
- Data Routing 105
- Current Configuration 105
- Temperature Monitoring 106
- Supported Protocols 107
- Operation 107
- SNMP Interface Parameters 107
- Looking After The Unit 108
- Preventive Maintenance 108
- Servicing 109
- Troubleshooting 110
- Troubleshooting - Philosophy 110
- CAUTION! 111
- WARNING! 111
- Managing Alarms 112
- Alarm Levels 113
- Alarm Treatment 113
- Alarm Manager 113
- SNMP Trap 113
- Alarms - Control Port 114
- Alarms - Data Port 114
- VCM Alarms 114
- Alarm Status Menu 115
- Basic Fault Scenarios 115
- Unit not Working 115
- Log Files 116
- Time and Date 117
- General 117
- Equipment Disposal 117
- Lithium Batteries 117
- Recycling 117
- Technical Specification 118
- Base Chassis 118
- Physical Details 119
- Power Supplies 119
- IP Output Transport Stream 120
- Data Ethernet Specification 121
- SDI Input 122
- Digital Audio Specification 123
- Video Formats 124
- Encoding Stereo 125
- MPEG-1 Layer II Coding Modes 125
- Dolby Digital Encoding 126
- Pass Through Modes 127
- Audio Test Tone 127
- HD-SDI Input 128
- ASI Option Module 129
- External Sync Module 130
- Appendices 130
- Dolby E 132
- Available Option Cards 133
- Handling Option Cards 133
- Adding an Option Card 135
- Removing an Option Card 135
- Replacing an Option Card 136
- Option Card Hot Swap 136
- Compliance Statements 137
- CE Marking 137
- C-Tick Mark 137
- Environmental 138
- Materials Declarations 139
- Packaging 139
- Safety Compliance 140
- Clock and Timing 140
- Program Clock Reference 141
- Single PCR Operation 141
- Real Time Clock 141
- Redundancy Modes 142
- Redundancy Overview 142
- Control Network Redundancy 143
- Auto Revert Delay 143
- MPEG Layer 144
- RTP Layer 144
- UDP Layer 144
- IP Layer 144
- Alarm Lists 145
- Base Chassis Alarms 145
- HD H.264 VCM Alarms - EN8190 148
- HD H.264 Encoder Module 150
- ASI Option Module Alarms 153
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