Committees responsible
Foreword
Code of practice
Section 1. General
1.1 Scope
1.2 References
1.3 Definitions
Section 2. Assessment and design
2.1 Intelligibility
2.2 Engineering for intelligibility
Section 3. Specification recommendations
3.1 Non-quantitative recommendations
3.2 Quantitative recommendations
Section 4. Measurements
4.1 Objective measurements
4.2 Method of testing intelligibility
4.3 Commissioning tests
4.4 Routine procedures
Section 5. Operation
5.1 Personnel
5.2 Operating instructions
5.3 Schematic drawing
5.4 Warning signs
Section 6. Maintenance/Re-testing
6.1 General
6.2 Maintenance instructions
6.3 Test manual
6.4 Faults
6.5 Records to be kept
6.6 Routine procedures
6.7 Annual check
Section 7. Training
7.1 General
7.2 Duration of training
7.3 Training required
7.4 Initial training
7.5 Familiarization training
7.6 Announcer's training
7.7 Certifications
7.8 Continuous monitoring
Section 8. Reliability and integrity
8.1 General
8.2 Restriction of access
8.3 Auxiliary power
8.4 Uninterruptible power supply (UPS)
8.5 Cabling
8.6 Integrity surveillance
Annexes
A (informative) Subject intelligibility checks
B (informative) Information a Certifying Officer might
     wish to examine in a new or refurbished stadium
C (informative) Model design statement
D (informative) Sound system check list
E (informative) Speech-spectrum shaped noise signal
F (informative) Speech intelligibility tests
G (informative) Sound pressure level definitions associated
     with speech intelligibility tests
H (informative) Model form for a fault report
J (informative) Certification of announcers
K (informative) Model form for notification to a Certifying
     Authority
Table
E.1 Speech-spectrum shaped noise signal
Figure
F.1 Determination of design signal-to-noise ratio
List of references