NTSC or 480i
television has two-channel stereo; HDTV has 5.1-channel Dolby digital surround sound.
The HDTV-ready projector also supports popular digital video signals, such as 480i
, 480p, 720p, 1080i and 1080p.
Both projectors feature a digital keystone adjustment of +/-20 degrees (vertical), progressive-scan circuitry that converts a 480i
(NTSC) or 575i (PAL) signal to progressive display using 2:3 pulldown for improved image quality when projecting film-originated DVDs or TV content, and a customizable logo display that lets users display their favorite image, company, or school logo on the start-up screen.
The set upgrades NTSC's 480i
picture to 480p and displays images in the standard 4x3 size as well as 16x9, the format in which HDTV pictures are commonly displayed.
Spinnaker supports both 480i
and 480p real-time encoding, and has advanced features like captioning support and the ability to include multiple languages into the stream.