Unrivaled Image Quality with Bolt 4K
Bolt 4K transmits better HD
Bolt 4K transmits better HD
Don’t let the name fool you... Bolt 4K also transmits a sharper, cleaner HD image. A brand new chipset design enables Bolt 4K to deliver more information at higher resolutions and with better quality over the same bandwidth.
Traditional compression engines (HEVC, H.264) decide what information is transmitted to the receiver, and what information is compressed (or discarded), according to their effective channel bitrate and visual importance. The most important coefficients are delivered to the receiver, while the least important are eliminated.
Unlike traditional compression engines, Bolt 4K’s processing method ensures ALL the information is delivered to the receiver.
However, RF signal quality is always going to fluctuate due to random obstructions and interference. These RF challenges are going to produce errors in the information received. Bolt 4K’s new chipset corrects these errors, and allows the receiver to output visually lossless, higher quality video with <1ms of latency.
These improvements make Bolt 4K’s picture the closest alternative to a cabled connection, compared to previous HD wireless video systems.
HD Signal Comparison Between SDI Cable and Bolt 4K
HD Signal Comparison Between SDI Cable and Bolt 4K
Compare two HD video feeds below, one through an SDI cable directly into a recorder and one transmitted through a Bolt 4K, in HD, with the SDI output recorded on the receiver side. Both comparison images utilize identical 1920x1080 Apple ProRes 422 HQ source material. Let’s Compare:
At 100%, the difference between the two images is nearly impossible to see. The Bolt 4K looks just as good as the clean SDI feed. In order to see any sort of difference we’re going to have to pixel peep... alot.
Even at 1600%, it can be tough to see the difference between the frames, though there are a few areas (such as the red sign) that show slight saturation differences.
If we overlay the two images and subtract the difference between them we can clearly see any areas that differ. In this example any color seen on the image represents a difference between the two feeds whereas the black areas are what is identical between the two.
While it’s not literally the exact same image as being cabled, the wireless transmission is pretty dang close. 4K wireless video is an amazing benefit, but don’t ignore the fact that Bolt 4K does HD transmission better than any other zero-delay wireless system.