Main Forums >> Recording Techniques

Robert Eidschun



Reged: 28/09/08
Posts: 158
Loc: Victor, New York
Re: Television Broadcast Weirdness
      11/03/09 07:26 AM
Hi Hugh,

Initially, I wasn't sure if DRC was part of Dolby. Now I know that turning it on invokes the particular compression curve that is indicated in the metadata.

However, I have a DVD player that plays back Dolby audio but does not allow one to turn DRC on or off, and I've read that such players indeed apply the compression curve indicated in the metadata.

So, in the beginning, before I had ever seen "DRC" on a DVD player's set-up menu, I thought that perhaps the compression curve in the Dolby metadata was always applied to Dolby audio by all DVD players, and that any option on the DVD player's menu to turn something called "DRC" on or off was perhaps an option to apply compression "further downstream" to any audio on the DVD, Dolby or otherwise. That then would result in "double compression", if the audio playing back had been Dolby encoded and if the metadata's compression curve was being applied to it (before the additional "DRC" applied "further downstream"). But, as I say, I now know that DRC is not compression in addition to that resulting from the application of the compression curve in the metadata.

However, as you pointed out, some TVs allow you to turn on or off the compression of any audio, regardless of its type or origin, and so if applied to Dolby audio that has already been compressed by DRC, then the result will be "double compression", it would seem.

By the way, I've made some additional inquiries concerning film festivals, and it seems that at first, you submit a DVD for consideration. The judges then watch that and determine if your entry will "participate" in the festival. If indeed it is chosen for participation, then it will be screened, i.e. projected or shown somehow in a large room or theater for all to watch, in which case you'll be asked for your audiovisual work on HDCAM or some other high-end format.

Well, for the DVD that you submit, there seem to be no standards. I guess this is because the judges are probably going to watch on plain 'ol TVs, perhaps at home, whenever they have time, etc. and so you should simply aim for a dynamic range that seems appropriate for a TV in the living room of a house. In this case, I see no reason not to normalize the audio to full scale, as the judges can simply adjust the volume accordingly and things should be fine, provided that your dynamic range is narrow enough to allow a volume setting that is neither too loud nor too soft. Thus my figure of 45 dB, maximum, determined experimentally.

But concerning screening, there are horror stories out there of the volume being turned down too much, or the speakers sounding almost blown, or mono playback only, or so much noise among the audience as everyone keeps talking or incredibly loud hiss from noisy amplifiers that you'd better have your audio normalized and highly compressed such that everything is right near the top so that it can be heard -- especially the traditionally quiet sounds, such as the rustling of clothing. And yet on the other hand, there are also stories of how the audio reproduction at a certain festival was really good, but that unfortunately, the film maker had his audio highly compressed and so it sounded like a "squashed television program", rather than a "fine film worthy of projection in a proper cinema".

So, in short, it seems that the quality of the audio reproduction at film festivals is all over the map and that there is no way to anticipate what it will be. In fact, I contacted one such festival recently and was told, "there are no standards here... just do what you think is best and things will be fine...", which thus left me totally in the dark, at least concerning that particular film festival, its playback equipment and its practices.

Regards,

Robert

--------------------
Robert Eidschun

Post Extras Print Post   Remind Me!     Notify Moderator
Rate this thread

Jump to

Entire thread
Subject Posted by Posted on
* Television Broadcast Weirdness soundshaper 29/01/09 08:23 AM
. * Re: Television Broadcast Weirdness dmills   12/03/09 11:51 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   13/03/09 12:41 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   13/03/09 10:28 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   14/03/09 07:19 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   14/03/09 11:37 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   14/03/09 04:55 PM
. * Re: Television Broadcast Weirdness dmills   14/03/09 10:09 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   15/03/09 06:14 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   13/03/09 01:13 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   13/03/09 02:36 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   13/03/09 05:10 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   13/03/09 05:30 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   13/03/09 05:53 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   13/03/09 11:13 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   14/03/09 01:57 AM
. * Re: Television Broadcast Weirdness dmills   12/03/09 11:17 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   12/03/09 11:24 PM
. * Re: Television Broadcast Weirdness dmills   12/03/09 11:05 PM
. * Re: Television Broadcast Weirdness turbodave   07/03/09 04:03 PM
. * Re: Television Broadcast Weirdness rhd_toyl   06/03/09 03:35 AM
. * Re: Television Broadcast Weirdness Hairy Ears   11/03/09 05:27 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   11/03/09 07:06 PM
. * Re: Television Broadcast Weirdness Hairy Ears   11/03/09 09:38 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   11/03/09 09:56 PM
. * Re: Television Broadcast Weirdness Hairy Ears   12/03/09 06:02 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   06/03/09 09:10 AM
. * Re: Television Broadcast Weirdness rhd_toyl   08/03/09 01:30 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 04:05 AM
. * Re: Television Broadcast Weirdness rhd_toyl   06/03/09 01:10 AM
. * Re: Television Broadcast Weirdness rhd_toyl   04/03/09 09:28 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   05/03/09 10:55 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 05:32 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   05/03/09 06:19 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   05/03/09 10:59 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 05:13 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   06/03/09 09:29 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 10:30 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   06/03/09 01:02 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 06:46 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   07/03/09 10:21 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   11/03/09 07:26 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   11/03/09 08:57 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   12/03/09 11:04 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   13/03/09 10:07 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   13/03/09 12:56 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   11/03/09 06:49 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 10:07 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   06/03/09 12:58 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   05/03/09 06:35 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   06/03/09 12:39 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 02:19 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   06/03/09 09:06 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 09:34 AM
. * Re: Television Broadcast Weirdness Folderol   04/03/09 08:33 PM
. * Re: Television Broadcast Weirdness rhd_toyl   04/03/09 08:29 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   04/03/09 09:11 PM
. * Re: Television Broadcast Weirdness soundshaper   29/01/09 09:20 PM
. * Re: Television Broadcast Weirdness TVSound   29/01/09 09:57 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   30/01/09 11:24 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   22/02/09 08:35 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   22/02/09 10:09 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   22/02/09 07:57 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   23/02/09 10:24 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   02/03/09 10:15 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   03/03/09 09:01 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   04/03/09 07:48 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   04/03/09 09:47 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   04/03/09 03:22 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   04/03/09 10:18 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   05/03/09 08:28 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   05/03/09 10:32 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   06/03/09 08:59 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   05/03/09 04:54 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   05/03/09 10:18 AM
. * Re: Television Broadcast Weirdness Robert Eidschun   23/02/09 07:53 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   23/02/09 09:41 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   24/02/09 01:04 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   25/02/09 09:48 PM
. * Re: Television Broadcast Weirdness turbodave   26/02/09 05:01 PM
. * Re: Television Broadcast Weirdness Robert Eidschun   25/02/09 11:46 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   03/03/09 08:40 AM
. * Re: Television Broadcast Weirdness soundshaper   30/01/09 06:03 PM
. * Re: Television Broadcast Weirdness soundshaper   30/01/09 01:10 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   30/01/09 11:25 AM
. * Re: Television Broadcast Weirdness MajorFubar69   29/01/09 05:43 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   29/01/09 06:39 PM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   29/01/09 09:19 AM
. * Re: Television Broadcast Weirdness soundshaper   29/01/09 10:38 AM
. * Re: Television Broadcast Weirdness Hugh RobjohnsAdministrator   29/01/09 11:15 AM

Extra Information
0 registered and 42 anonymous users are browsing this forum.

Moderator:  David Etheridge, James Perrett, zenguitar, Martin Walker, Forum Admin, Hugh Robjohns, Zukan, Frank Eleveld, Will Betts,  



Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 25787

May 2014
On sale now at main newsagents and bookstores (or buy direct from the
SOS Web Shop)
SOS current Print Magazine: click here for FULL Contents list
Click image for May 2014
DAW Tips from SOS

 

Home | Search | News | Current Issue | Tablet Mag | Articles | Forum | Subscribe | Shop | Readers Ads

Advertise | Information | Digital Editions | Privacy Policy | Support | Login Help

 

Email: Contact SOS

Telephone: +44 (0)1954 789888

Fax: +44 (0)1954 789895

Registered Office: Media House, Trafalgar Way, Bar Hill, Cambridge, CB23 8SQ, United Kingdom.

Sound On Sound Ltd is registered in England and Wales.

Company number: 3015516 VAT number: GB 638 5307 26

         

All contents copyright © SOS Publications Group and/or its licensors, 1985-2014. All rights reserved.
The contents of this article are subject to worldwide copyright protection and reproduction in whole or part, whether mechanical or electronic, is expressly forbidden without the prior written consent of the Publishers. Great care has been taken to ensure accuracy in the preparation of this article but neither Sound On Sound Limited nor the publishers can be held responsible for its contents. The views expressed are those of the contributors and not necessarily those of the publishers.

Web site designed & maintained by PB Associates | SOS | Relative Media