Quantum Data 780C - Procedures for Testing a Display with Dolby Digital or DTS Sine Wave Clips

780C Multi-Interface Interoperability Tester – User Guide Page 59
September 29, 2014
Revision A1
Table 4-6: Audio Pattern Tests
Pattern
Format
Interfaces
Range of Values
Pink Noise Patterns:
 500-2kHz Pink noise
 20-20kHz Pink noise
Application:
 Tests sound pressure level
 Main speaker frequency
response
Dolby Digital 5.1
HDMI
HDBASET
SDI
SPDIF
Optical
HDMI ARC (780C only)
 Individually selectable channels
 Cycle – cycling through each
channel; 8 seconds per channel
DTS-ES 6.1
HDMI
HDBASET
SDI
SPDIF
Optical
HDMI ARC (780C only)
Sine Wave Pattern:
 63Hz
 125Hz
 1kHz (5.0 only - no subwoofer)
 4kHz (5.0 only - no subwoofer)
Application:
 Speaker distortion
Dolby Digital 5.1
HDMI
HDBASET
SDI
SPDIF
Optical
HDMI ARC (780C only)
Channel selection:
 Select All channels or…
 Cycle – cycling through each
channel; 8 seconds per channel
DTS-ES 6.1
HDMI
HDBASET
SPDIF
SDI
Optical
HDMI ARC (780C only)
Impulse Pattern
Application:
 Early reflections
Dolby Digital 5.1
HDMI
HDBASET
SPDIF
SDI
Optical
HDMI ARC (780C only)
 Individually selectable channels
 Cycle – cycling through each
channel; 8 seconds per channel
DTS-ES 6.1
HDMI
HDBASET
SPDIF
Optical
HDMI ARC (780C only)
Polarity Pattern
Application:
 Polarity of the speaker wires
Dolby Digital 5.1
HDMI
HDBASET
SPDIF
Optical
HDMI ARC (780C only)
 Individually selectable channels
 Cycle – cycling through each
channel; 8 seconds per channel
DTS-ES 6.1
HDMI
HDBASET
SPDIF
Optical
HDMI ARC (780C only)