Playing Blu-Rays in a Cinema

Playing Blu-Rays in a Cinema

Blu-Rays and H264 files are sometimes used instead of DCPs when screening special content at cinemas.

Modern Blu-ray players send the video and sound signal through the HDMI connection. When choosing which Blu-Ray player to use in a cinema/movie theatre you should first check if you need analog 5.1 sound output.

Many Blu-Rays only have DTS MASTER HD 7.1/5.1 sound. That means no Dolby digital 5.1 bit-stream that can be used on the SPDIF input on cinema audio processors like the CP-650.

Players with analog 5.1 sound can connect to the analog 5.1 input on most cinema sound processors.

To connect the 5.1 phono output to a Dolby CP-650 and other cinema equipment you need an unbalanced 5.1 Phono to DB25 cable.
Like this one:
db25

Some newer cinema equipment may accept the DTS HD Master bitstream from HDMI or 5.1 uncompressed sound from HDMI.

Other features that is useful in a cinema:
-Common height (CIH) settings
-Lipsync adjust.
-Remove On Screen Display
-Adjust Brightness/contrast
-Advanced film/video/cadence detection for DVD.
-H264 Media file playback
-Adjust speaker trim level
-LPCM output
-RS232 control

The OPPO UDP-203 4K Ultra HD Blu-ray Disc Player has these features according to the manual.

More info on the features that are useful in cinemas:

 

Common height (CIH) settings
Useful if you want to adjust the placement of subtitles on scope films in a common height cinema.
A common height cinema uses a 2.39:1 screen.
If the subtitles are “burned in” below the picture you can´t screen the movie in scope and need to either make a custom preset on the projector or screen it in Flat.

Lipsync adjust.
Adjusting the sync with a sync clip played from the blu-ray player is helpful if the sound is out of sync.

-Remove On Screen Display
If you don’t want to show the play and pause icons it is important to turn off OSD.

-Adjust Brightness/contrast
Badly mastered Blu-rays may have elevated blacks or bad white levels, this is corrected with the Brightness (black level) and Contrast (white level) settings.

-Source Direct mode
Turn of video processing. Sends a clean signal.

-Advanced film/video/cadence detection for DVD.
Can auto detect if the DVD source is progressive (film) or interlaced (video). Can fix bad cadence.

-Media file playback
You can play MP4 and other H264 formats from a USB flash drive.

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