Magna Mana Production, working with JVC-Germany, has created an interesting video comparing analog versus digital video quality. Using a Convergent Design nanoConnect HDMI to HD-SDI converter, Magna Mana shot HDV (720p25) video with a JVC GY-HD251E ProHD camcorder, played it through a JVC BR-HD50 deck and captured into an HD-SDI based editing system. The analog video clip was initially captured using the HD component analog output from the deck into a popular analog-to-HD-SDI converter. The digital video clip was created by re-capturing the same footage using an HDMI output from the BR-HD50 deck into a nanoConnect, which outputs an HD-SDI signal.
The final video was then created by aligning the analog clip and the digital clip on the same timeline and creating a Windows Media Video file, which sweeps back and forth between the two clips. The difference is clearly visible. The companies said that by eliminating the bandwidth limitations and voltage shifts associated with analog D/A and A/D conversions, the digital capture produces superior video quality.
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