[Herman Erasmus]

All set yes, thanks to you and Wayne helping me in the right direction!

Will hear either tonight or tomorrow from the Broadcaster if its up to standard now.

[Herman Erasmus]

Thanks for the reply John. Cant all the forums have such nice people like you guys?!

What they want: audio to conform to the (nearly) universal broadcast standard of -23dB average. What I did wrong: I adjusted audio levels to be under -3dB on the meters and foolishly ignored the rest of it (thought only the max volume is important), so it bounced back to me.

Found a super nice youtube video explaining it… In Audition there is: Window – Match Volume. Set it to ITU-R BS.1770-2 Loudness and a level of -23dB. It showed it had:
ITU Loudness: -11LUFS
Total RMS: -13dB
Peak: -1.92dB. Screamingly loud, in your standards?

Ran it and the levels dropped to:
ITU Loudness: -23LUFS
Total RMS: -25.4dB
Peak: -13.6dB

Hope I nailed it this time! TPMax of -3 I dont think I hit, seems to be -13 now. Guess the way the original audio was mastered by the recording studio, influences this max?

Will still go and check the loudness meters in SVP.

Again, appreciate your help and pointers and advise and wisdom!

[Herman Erasmus]

The final product that I supplied to the broadcaster can be found on this link.
If maybe Wayne and John could (when they do have some time) just technically inspect what I did in terms of containers and codecs and formats, and give a verdict if I stayed on the right path or ended up in die mud.

The video track I did not do much with, just used what I was given. Audio was given a bot of enhancement.

https://www.dropbox.com/sh/p6fmitbels7w1sz/AACXXjhXMnzLJ1Zo8GDXHEa0a?dl=0

Just got the email back from the technical guys. *sigh* Thought I cracked it first time with your help, but seemingly I fluffed! The container and format is perfect, but ….
EBU R128 compliance: Audio on tpmax of -3.0dB and LUFS -23lufs.
What on earth?! Goooooooogle here I come!

[Herman Erasmus]

A big word of THANKS to Wayne and John for the help, pointers and tips they offered!

Based upon what was said, on the limitations of SVP, I installed the trial version of Première Pro and did the project in there. Had disturbing images that it might be as complicated as PhotoShop and that again I will revert to being a cockroach in a paint factory, but alas not! When I went to Export – Media I found the correct container and codecs already present. Afraid to bork up, I rendered it with the default settings and the output sounds perfect stereo. In VLC it looks like:

Seems to be the specs it should be? Only snag, is audio is 16 bits and not the prescribed 24.

Rendered it then as 8track audio:

Seems to be fine in terms of the video requirements (John please check me on that!) but I changed the audio to the other available option, being 32 bit. Unless the Codec information: PCM S24 LE denotes the actual 24bit nature and not what VLC reports as Bits per sample: 32. The previous render gave audio as PCM S16 LE.

Again, my deepest thanks to the forum and guidance I was able to get from you guys. You video chaps are by far the friendliest lot I encountered on a forum for a very long time! 🙂

[Herman Erasmus]

So to solve my problem, I need to copy the same Stereo Audio track (and not insert it 4 times?), like Wayne has shown here, allocated each to a different Bus, and render it Multichannel Mapping Enabled, to get 4 pairs of stereo in the output file?

[Herman Erasmus]

I do appreciate the advise and help from the fellow forumites.

John, so I’m basically placing a DNxHD into a MOV container (my last try) and not into a MXF container, if I’m grasping the concept now. How would you reckon do I go about getting this done? I see under Output Format I have options of:
– Panasonic P2 MXF
– Sony MXF
– Sony MXF HDCAM SR

Will there be a preset in there that will work, or do I adopt from your tutotial and create a custom template under one of those MXF options?

Thanks!

[Herman Erasmus]

Hi Wayne,

Thanks so much for the responce and going to all the trouble to create that test file, which I’m now downloading. Noticed in VLC your audio is mono as well (nice visuals1)

I followed the steps in John’s excellent tutorial, had some underlying issues: installed QuickTime and then the Avid DNxHD codecs. Then things got a bit bitter after configuring the template as he instructs. I actually managed to create a file with stereo audio in it – after trying for who knows how many hours!

However, then I try and modify the audio with Enable Multichannel mapping, it goes to mono audio again.

Can I safely assume, tha whenever you try and do something with audio streams and you are messing about, SVP kind of defaults to Mono audio?

So if I understand you correctly with your suggestion, I need to add the very same audio track (44kHz stereo mp3 file) 4 times into the project, then assign it to Busses A to D, then try and render it again? Customise template, tell it 4 channels, and see what the output brings?

Sorry if I understand wrong or reason way out of line, I’m as inexperienced with SVP as a cockroach in a paint factory!

Also, is it correct that I’m ending up with a file of 2.7gig for a 00:03:05 project? Given the specs that it must be:

File Format: MXF OP1a Codec: DNxHD 8bit 120Mbps
Stored size: 1920*1080 Frame Rate: 25/1
Frame Type: Interlaced/TFF Chroma: 4 2 2
HD Audio: PCM 24bits per sample, 8 channel 48000kHz