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DIGITAL CINEMA ADVERTISING IN GERMANY - TECHNICAL SPECIFICATIONS
Please take a few minutes to familarize yourself with the following technical specifications for cinema advertising in Germany. Following these guidelines can save you a lot of time during implemetation. We’ll be happy to answer any questions about details not mentioned here and beyond:
Customers shall be obliged to submit any required content 20 business days in advance of the agreed beginning of a campaign at the latest. Later arriving content may result in a postponement of the cinema release.
Do not supply us with hard discs or already finished «Digital Cinema Packages» (DCP). German cinemas run several server and encoding systems. Already finished DCPs contain picture and sound elements but not a number of metadata required to operate the program management in cinemas and may cause serious incidents.
In all German cinemas ads are screened in 2K DCI Standard Flat 1.85:1 resolution 1998 x 1080 px. To create a «Digital Cinema Distribution Master» (DCDM) and to ensure high quality performances everywhere, the following technical specifications are recommended:
PICTURE
An image sequence of uncompressed (or lossless LZW-compressed) TIFF single frames (without alpha channels and layers) including 24 frames per second (for example 30 seconds 30 x 24 are 720 single frames in total) in the resolution of 1998 x 1080 px. Use square pixels, color space Rec.709 / BT.709 (Gamma 2.4) with a color depth of 8 up to 16 bit.
The individual images must be numbered consecutively in the correct order like filmtitle_0001.tif, filmtitle_0002.tif, filmtitle_0003.tif etc. (up to filmtitle_0720.tif e.g. for 30 seconds). The total number of images must be divisible by 24 - 11 or more overhanging frame numbers are billed as a full second. Black images are not required at the beginning and end of the film.
All important picture elements like typo, logos, subtitles etc. must be placed with a distance of 10% from all picture edges (cinema title safe area) 1798 x 972 px:
Image sequences with a resolution of 1920 x 1080 px (1.78:1 Full HD 16:9) will be blackened left and right up to the required width of 1998 px to avoid image loss at the top and bottom (Pillarbox). Please let us know if you do not want this process. The individual images then will be upscaled with image loss at the top and bottom and a smaller cinema title safe area:
Don’t waste advertising space by using scope effects like 1998 x 838 px in Flat frames (Letterbox). For TV and video clips this effect is sometimes used to simulate a kind of cinema feeling. Nowadays this is old-fashioned and apart from that - you are in a real cinema:
A TIFF single-image sequence can be exported from any professional video editing software and e.g. transmitted via WeTransfer or SwissTransfer as an uncompressed (compression level: store) zip-file.
The file size for 30 seconds should be less than 1 GB regarding 720 lossless LZW-compressed TIFF-files.
If you would like to send us a VIDEO FILE, please use:
Quicktime-MOV, ProRes (422 HQ), 24 FPS (frames per second), 1998 x 1080 pixel, Rec.709 (2.4 Gamma).
SOUND
In sync with the image sequence separately a WAV file 5.1 cinema mix including 6 channels each mono in the order of L - R - C - LFE - Ls - Rs at 24bit-PCM 48kHz. The loudness must not exceed Leq(m)82. Higher values will be rejected. If no «Dolby® Media Meter 2» is available for this specific measurement, please normalize the sound to -20 LUFS/LKFS (integrated loudness) according to ITU BS.1770-2 including gating calibrated to the maximum of RMS -23 dBfs unweighted:
For technical reasons, the use of stereo sound is not possible. The two stereo sound tracks at 24bit-PCM 48kHz will be upmixed to 5.1. The result is sufficient, but cannot compared to an original 5.1 cinema mix.
A 5.1 cinema mix can be exported from any professional audio editing software as 6 individual audio tracks WAV files or a 6 discrete audio tracks in a multichannel WAV file and please make sure to follow the correct order.
Please note that the procedures described above provide the best possible results. To avoid a postponement of the theatrical release don’t forget that we need all screening-ready picture and sound data at least 20 working days in advance.
We operate the complete technical cinema-specific workflow in-house. Please contact us by e-mail for any further technical assistance and support. |
