Runco Home Theater Projection System 用户手册
LightStyle™ LS-12HBd Installation/Operation Manual
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Audio/Video
Synchronization Issues
Due to its extraordinarily high level of video processing performance, the Dimension Digital
Controller may distribute video signals with a perceptible level of audio latency. In order to
easily solve this issue, Runco recommends using the Dimension Digital Controller with a
high-quality audio receiver that has the ability to effectively synchronize audio and video
signals.
Controller may distribute video signals with a perceptible level of audio latency. In order to
easily solve this issue, Runco recommends using the Dimension Digital Controller with a
high-quality audio receiver that has the ability to effectively synchronize audio and video
signals.
Most mainstream audio receiver/switchers have the ability to synchronize the audio and
video to the Advanced Television Systems Committee (ATSC) prescribed tolerances.
According to the ATSC, the sound program should never lead the video program by more
than 15 milliseconds, and should never lag behind the video program by more than 45
milliseconds.
video to the Advanced Television Systems Committee (ATSC) prescribed tolerances.
According to the ATSC, the sound program should never lead the video program by more
than 15 milliseconds, and should never lag behind the video program by more than 45
milliseconds.
In addition, many video displays and A/V receivers introduce additional latency that needs
to be compensated for during the installation.
to be compensated for during the installation.
Table 3-4 shows the amount of possible audio latency given different signal input timings.
Other Considerations
Other considerations and tips that can help improve your installation:
• Keep the ambient temperature constant and below 35°C (95°F). Keep the projector
away from heating and/or air conditioning vents. Changes in temperature may cause
drifts in the projector circuitry, which may affect performance.
drifts in the projector circuitry, which may affect performance.
• Keep the projector away from devices that radiate electromagnetic energy such as
motors and transformers. Common sources of these include slide projectors,
speakers, power amplifiers and elevators.
speakers, power amplifiers and elevators.
Table 3-4. Possible Audio Latency for Various Input Timings
Input Timing
Possible Audio Latency (milliseconds)
480i
133
480p
83
576i
160
576p
100
720p/50
100
720p/60
83
1080i/25
160
1080i/30
133
1080p/24
125
1080p/50
80
1080p/60
67