Export multichannel ProRes for use in QLab

A guide to correct sequence setup in Premiere and to correct exporting

To use audio from multiple channels in QLab, the audio setup must be as in this guide.

From the QLabs website:

QLab can access all audio channels within the first audio track of your video. This can be confusing, since the words "channel" and "track" are often used interchangeably. In the world of video files, one video can contain multiple tracks, and each track can contain up to sixteen channels. When a video is prepared for DVD production, the first track might represent the 5.1 surround mix, and thus contain six channels. The second track could be an alternate stereo mixdown, and thus contain two channels. Since QLab can only access the first track of a video's audio content, it's important to keep these differences in mind when preparing your video files.

This means we have to stick to a single audio track with multiple channels. The guide here shows how to set this up in Adobe Premiere.

First, the sequence must be set up correctly in Premiere. Use the following settings under "Tracks" in the sequence settings:

 

Track settings

MasterMultichannel
Number of channels8
Set all channels toMono

Output assignment

Track Name Master Track Channel
Audio 11 - 2
Audio 21 - 2
Audio 33 - 4
Audio 43 - 4
Audio 55 - 6
Audio 65 - 6
Audio 77 - 8
Audio 87 - 8


Breading

Track NamePan / Balance
Audio 1-100 / Left
Audio 2100 / Right
Audio 3-100 / Left
Audio 4100 / Right
Audio 5-100 / Left
Audio 6100 / Right
Audio 7-100 / Left
Audio 8100 / Right

 

See and example with above settings.

 

 

Export

Choose Quicktime and e.g. ProRes LT with the following settings:

StreamOutput ChannelsSource Channels
18 Channels1 - 8

Also remember to change the "Channel Layout" to Discrete.

See and example with above settings.

 

You may want to see this Youtube guide which explains the above, but remember to select Channel layout: Discrete when exporting - otherwise QLab cannot recognize more than one or two channels.