What is the relationship between the four functions of calibration coefficient management (load, save, read, export) and module flash?
Only the save and read functions are related to the module flash. If the module has flash, calibration coefficients can be read from the module flash to the receiving card. With a calibration coefficient management license, calibration coefficients can be saved to the module flash.
In VMP’s tool-maintenance interface, what are the restrictions on receiving card models for the factory reset function, and what data is reset?
Receiving Card Models: A10s Pro、CA50E、XA50 Pro with V1.5.3.0 or later version.
Resettable Data: 1) All parameters within the NCP file. 2) Factory area parameters (cabinet parameters, gamma, thermal compensation, brightness, and module flash) are reset. Firmware programs are not restored.
For the calibration coefficient read process, which reads the module flash first and then the receiving card flash. Do all receiving cards follow this logic?
This depends on the receiving card’s hardware capability. If module has module flash, read can performed from module flash. If there is no module flash, read can only be performed from the receiving card flash user area.
What is the purpose of adding a starting address in Art-net?
The “Add Starting Address” function in the Art-Net protocol allows a single Art-Net node (e.g., a lighting controller, pixel driver, etc.) to output multiple consecutive DMX Universe data to different physical ports or channel groups.
Its core function can be summarized as: flexibly and efficiently allocating and managing large-scale DMX512 data under limited network resources and node counts.
How can the calibration coefficient management license be obtained?
This license requires users to communicate their requirements with a NovaStar FAE and apply for it. After the application is approved, the license can be imported into VMP software for use.
For cabinets that have done adaptive thermal compensation 3.1, why does it take some time to restore the effect after the power cycle when the screen is at a high temperature?
After a power cycle, the screen temperature decreases. The system needs to determine whether the blank screen is caused by source turning black or a power cycle. The process of restoring the effect requires sensing the trend of screen temperature change to restore the correct compensation effect.
Can users perform thermal calibration 3.1 themselves?
No. As of March 2026, this calibration is currently not open for manufacturers or users to perform independently.
Which monitoring functions in VMP V1.5.0 rely on smart modules?
Module pixel fault detect, module flat cable, module temperature, and module voltage. These four functions require smart modules to be supported.
Why do 3D and frame multiplication features affect loading capacity?
Using 3D and frame multiplication features will increase the output frame rate, which affects the device’s loading capacity.
Certain video sources in broadcasting has specific frame rates, such as 59.94Hz. Can the COEX system support transmitting such video sources?
This depends on which type of adaptive frame rate file is used, and does NCP or rcfgx is used. If there is an NCP file with adaptive frame rate 3.0, it can support any frame rate between 23.98Hz and 240 Hz, with 0.01 Hz increments. It can be used to transmit video sources with such frame rates.
Which controllers are compatible with full grayscale calibration?
Currently, all COEX devices support full grayscale calibration technology. But there are some compatibility for receiving card; only A10s Pro, CA50E, and XA50 Pro are supported.
What is the significance of the multi mode feature?
multi mode refers to let a single NCP file has multiple sets of parameters, configurations, and calibration files for the cabinets which has the same specification. After being loaded via VMP software, modes can be changed in the user interface to match different parameter usage needs in various scenarios.
Scenarios:
What aspects need attention for virtual production projects?
To ensure good display quality and minimize shooting scan lines, virtual production projects have stricter requirements for both screens and control systems. For the control system, considerations include the loading capacity under high bit depth and high frame rate, screen heating causing color temperature shift requires thermal compensation; and functions like Genlock, phase offset, and shutter fit are needed to solve scan line issues. For screen parameters, such as currently NovaStar-adapted chips, the scan count should preferably be 16 scans or less, with 8 scans or fewer recommended. The screen refresh rate should be at least 3840Hz, with 7680Hz or higher recommended.
Do COEX devices support synchronization via NTP and PTP?
COEX devices support synchronization via NTP. The device time synchronization and schedule functions can prove it.
PTP synchronization is the timing method used in ST.2110 solutions. It requires MX2000/6000 Pro paired with ST.2110 cards and relies on the IP switcher in the control link to achieve synchronization.
Does front panel of COEX device have functions for switching layers and input sources?
For fixed-design COEX devices, under send-only mode, the front panel can be used to switch video sources, but this is not supported under all-in-one mode. For modular-design COEX devices, it is not supported in either working mode.
What is the impact of a 10bit video source with 8bit output to the receiving card?
If the processor outputs 8bit to the receiving card (common default or when bandwidth/load is constrained), it effectively performs down-quantization before transmission. This results in loss of low-grayscale and transition details, particularly visible as banding (color/gray banding) or stepped gradients in dark areas, skies, skin tones, etc.
Even with a 10bit source, 8bit output limits the full benefit of the source, though the processor’s internal high-precision processing still provides some improvement over a native 8bit source.
Which COEX control system support to transmit 12bit sources?
MX40 Pro + A10s Pro or 5G receiving cards
What impact does 10bit output from the processor to the receiving card have on image quality, and how can user test it?
10bit output to the receiving card significantly enhances low-grayscale performance and overall gradient smoothness. The receiving card and driver IC receive higher-precision raw data (1024 levels per channel vs. 256 for 8bit), which—combined with NCP-configured Image Booster (precise grayscale + 22bit+ enhancement)—delivers richer dark-area details, reduced contouring, lower color shift, and higher dynamic contrast.
Testing recommendations (perform side-by-side comparisons under identical content and brightness):
Use VMP software to force 8bit vs. 10bit output in the sending settings (some models allow direct bit-depth selection on output cards; otherwise, verify indirectly via load calculations).
Input 10bit HDR test patterns (e.g., grayscale ramps, dark gradients, skin-tone charts, SMPTE HDR patterns).
Observe from close range (1–2 meters) for banding/jumping in dark areas, smoothness in skies, and noise in black fields.
Record the screen with a camera (professional or smartphone in slow motion) and check footage for visible banding (more pronounced in 8bit).
With a colorimeter (e.g., CA-410), measure low-brightness grayscale uniformity and ΔE values—10bit typically shows lower ΔE and smoother transitions.
Does 10bit to the receiving card require 16 scan number mode?
No, scan mode (e.g., 16, 32 scan number) and bit depth processing are independent. Any scan configuration can handle different bit depths (8/10/12bit).
Scan mode primarily affects visual refresh rate—the smaller the scan ratio (e.g., 8 scan number vs. 32 scan number), the higher the perceived refresh, reducing flicker and scan lines visible to the eye or in camera shots.
The notion that 10bit “requires” 16 scan number likely stems from older systems or specific high-end setups where higher bit depth + high refresh rate are combined for premium performance. In modern COEX systems, bit depth influences color/gradient quality, while scan mode affects flicker and camera compatibility—no direct linkage exists.
What are differences between 10bit and 8bit sources?
In term of image quality:
The difference is substantial, especially in low-brightness gradients and fine details.
8bit input → Receiving card gets 256 levels/channel → Even if the driver IC extends to 16bit internally, it’s merely upward filling/interpolation; lost original details cannot be recovered → Dark areas prone to banding, stepping, noise, and color shifts.
10bit input → Receiving card gets 1024 levels/channel → Provides richer raw grayscale data → Driver IC has a stronger foundation for 16bit extension → Combined with Image Booster’s precise grayscale correction and 22bit+, dark transitions become extremely smooth, details richer, and dynamic range superior.
In term of loading capacity:
For most receiving cards, 10bit output reduces sender net port loading by ~30–33% (due to ~1.33× data volume). For A10s Pro specifically, it maintains full single-card loading capacity for 10bit (no reduction), while sender-side loading decreases accordingly.
In summary, the jump from 8bit to 10bit primarily improves low-brightness gradient quality and overall image finesse—critical for fine-pitch screens like T-2.6 and directly supporting the “10bit or higher” requirement.