Re: [Avid-L2] Audio Delivery Requirements with Channel Labeling?

I don't really have an answer for you, but does the spec require a QuickTime file? Or is MXF a possibility?

On Fri, Jul 3, 2020 at 9:47 PM John Moore <bigfish@pacbell.net> wrote:

I got the following delivery specs for audio.  I'm use to delivering mono stems that I label using the preset names available in QT 7 for (L,R,C,Lfe,Ls,Rs) Lt,Rt.  But this delivery spec wants stereo and 5.1 tracks.  I suppose I could turn the tracks into stereo and 5.1 in Avid before exporting a QT Ref or maybe even a same as source.  What I'm not sure of is the labeling requriements mentioned.  Where do you add the labels?  I guess I've been doing it in QT 7 as mentioned above but that only has certain name choices.  Any insight would be appreciated.

DELIVERY REQUIREMENTS

UNSCRIPTED SERIES / SPECIALS (IN-HOUSE) 22 of 40

HBO MAX Post-Production Revised 5-7-20

Audio Technical

• Each Soundfield group MUST be arranged into a single track. e.g. 5.1 would be a single track

with 6 channels.

• All Audio channels MUST be labeled in the file metadata using Multichannel Audio

Labeling as specified in SMPTE ST 377-4:2012.

• Stereo labels MUST match the method used to create the sound field: LtRt for matrixed

downmix, LoRo for simple downmix, LR for stereo mix.

• All audio tracks MUST conform (be synchronous) with video and have the same duration.

• Near field mixes are preferred over a Theatrical.

John Moore Barking Trout Productions Studio City, CA bigfish@pacbell.net

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