HD-MAT delivery to cinema

 

Brightfish now support reception of source files through the HD-MAT protocol. This defines 2 aspects:

1) File format

  • the images are included as 1920 x 1080 (HD), at 25 fps (TV standard)
  • the sound is included as stereo PCM (which is not enough for cinema, so you need to send a 5.1 mix WAV file to us also*)
Stream #0.0: Video: mpeg2video, yuv422p, 1920x1080 [PAR 1:1 DAR 16:9],
             50000 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
Stream #0.1: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s   
Stream #0.2: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s

2) File transfer

  • the files can be sent directly to Brightfish through the DMAT sender program

*Remark: cinema sound = 5.1 audio

  • if you want to deliver 5.1 (6 channel) audio, please send it separately via mail, FTP or Wetransfer.
  • either 1 WAV file with 6 channels: L /R /C / LFE / LS /RS or 6 separate WAV files
  • mixed for the TV version (so length of the audio x 25 fps = # of image frames delivered; e.g. 30 sec audio = for 750 frames)
  • if there is no 5.1 audio available, we can convert the stereo signal into 6 channels, but this does not give the same quality and separation of voice/music as with real 5.1 audio.

Remark: cinema conversion

  • if the original clip was 30 seconds at 25 frames/sec, Brightfish will slow it down to a 31.25 sec spot running at 24 fps (cinema standard). The sound will also be adapted.

Advantages

  • if your spot has run on TV in Belgium, chances are it exists in HDMAT format. You can send it as-is to Brightfish.
  • no negotiation about codec, pixel size or bit length. The HDMAT format is standardized and Brightfish can process it.

 

Opera pack

Deze week 40 gaan er voor de eerste keer Opera Pack campagnes van start. Dit zijn spots die enkel voor Opera in de Cinema/ Viva l’Opéra voorstellingen mogen getoond worden. Er zal een extra NL en/of FR playlist bij de lijst zitten die heet SVB.2011_40._.VO.OPERA_PACK.all.____.xml. De ‘A’ en ‘B’ playlist zijn identiek voor Opera Pack, dus je hoeft er maar 1 van te gebruiken.

Cette semaine 40, il y a des des campagnes Opera Pack qui demarrent. Ce sont des spots à montrer avant les scéances Opéra dans le Cinéma/Viva l’Opéra. Il y aura un playlist en plus dans votre liste qui s’appelle SVB.2011_40._.VO.OPERA_PACK.all.____.xml. Il n’y a pas de différence entre la version ‘A’ ou ‘B’, alors vous pouvez utiliser une seule version.

Sound is now 85 dB LEQ

Since April 6th, Belgian advertising spots are now mixed on the same loudness as the trailers: 85 db LEQ. All sound will be checked for this standard.

What is dB LEQ?

This is a standard developed by Dolby, as a standard for subjective or perceived loudness. It takes into account sound peaks, the frequencies on which they occur and the overall length of the clip.

Audio specifications published

We just published an explanation of our audio specs:

  • how we calculate loudness of clips
  • why we need 5.1 audio

Here: http://www.cinemapub.be/blog/technical-specifications/audio

Technical specifications 35mm / digital

These are the technical specifications for delivery of source material for 35mm or digital campaigns.

http://www.cinemapub.be/blog/technical-specifications




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