Anime Central 2007 Rules

YouTube · Post by **Ileia** » Fri Apr 20, 2007 9:23 pm

AtomX wrote:OMGEDITINGANENTIREVIDEOINONEDAYHAHAHAHAHAIMGOINGCRAZY

That's what all the cool people do.

godix · Post by **godix** » Fri Apr 20, 2007 9:37 pm

outlawed wrote:I want to take this opportunity to remind folks in general that reading the submission requirements is just slightly important. It is also important to understand what they mean.

Well crap. I just read them and realized the animated gif I sent in isn't acceptable. Sorry.

outlawed · Post by **outlawed** » Sat Apr 21, 2007 8:11 am

50 entries processed yesterday. The next batch of e-mails has just gone out.

outlawed · Post by **outlawed** » Sat Apr 21, 2007 8:42 am

When I wrote the Acen rules I wanted to cover the ability to have uncompressed audio available. Why?

1) As much fun as it is to run the audio mixer it is more professional and consistent to control the audio levels at the source for something as important as the contest.

2) The emergency DVD backup can have audio sourced from an uncompressed source instead of recompressing mp2 everyone usually provides.

How I fucked up: Encoded MPEG-2 frames != Source file frames. I completely forgot about this "minor" issue. I guess I'm not the only one because the majority of people submitted MPEG-2 and no one wondered why I would want a wav of your source audio.

What does this file difference mean? It means the audio is skewed and does not sync. If you were to open the muxed audio and the wav file and compare them you would see one they do not match and one is longer than the other.

There is no way I can figure out to easily calculate the offset or skew and compensate. I do not have the time to examine the waveforms and manually sync all the audio. So yes this means all that beautiful pcm I had everyone upload is for all intents and purposes worthless. Unless there is some miracle tool or trick I do not know of.

The Future:

I know a lot of people don't have the functionality for stuff outside of mp2 but next year I'll make the rules indicate a muxed audio preference as the following:

1) Linear PCM
2) AC3 384 kpbs 2-channel
3) MP2 384 kpbs

Willen · Post by **Willen** » Sat Apr 21, 2007 10:01 am

I assume the audio offset isn't 1 second?

AVI and MPEG-2 files must have 1 second of black before the video starts and after.

Or the MPEG-2 is 2 seconds longer than the uncompressed PCM. This is assuming that the editor didn't add 1 second before and after to the original WAV file (they sent the original un-edited audio).

If the WAV audio waveform is stretched or shrunk compared to the muxed (MP2) audio then that's another issue altogether...

outlawed · Post by **outlawed** » Sat Apr 21, 2007 10:38 am

Willen wrote:I assume the audio offset isn't 1 second?

That's not the issue. It has to do what happens with the video when it is compressed to MPEG-2. You cannot take the raw audio source and have it maintain sync after the MPEG-2 compression is done. The audio must be run through your MPEG-2 compression program with the video at the same time (either muxing together our outputting 2 elementary streams) or you cannot maintain sync.

I didn't think about this issue because in all honesty I never approached handling audio this way before with MPEG-2. My flaw was treating this as if I was dealing with two avi editing-codec files and this is not the case.

If you want to visually understand what happens:
Take some segment and encode it to mpeg-2 with audio. Make another copy of this by muxing the mpeg-2 video stream with the uncompressed source audio. Compare.

JudgeHolden · Post by **JudgeHolden** » Sat Apr 21, 2007 11:29 am

outlawed wrote:
Willen wrote:I assume the audio offset isn't 1 second?
That's not the issue. It has to do what happens with the video when it is compressed to MPEG-2. You cannot take the raw audio source and have it maintain sync after the MPEG-2 compression is done. The audio must be run through your MPEG-2 compression program with the video at the same time (either muxing together our outputting 2 elementary streams) or you cannot maintain sync.

I didn't think about this issue because in all honesty I never approached handling audio this way before with MPEG-2. My flaw was treating this as if I was dealing with two avi editing-codec files and this is not the case.

If you want to visually understand what happens:
Take some segment and encode it to mpeg-2 with audio. Make another copy of this by muxing the mpeg-2 video stream with the uncompressed source audio. Compare.

So, I hope you will use the muxed versions that where sent by some of us along with the wav file, cuz if the sync is screwed up, so is the video ... and it makes us look bad and not you, cuz the audiance will blame the creator ....

In other words, what are you going to do?

outlawed · Post by **outlawed** » Sat Apr 21, 2007 1:07 pm

JudgeHolden wrote:So, I hope you will use the muxed versions that where sent by some of us along with the wav file, cuz if the sync is screwed up, so is the video

I won't be using the wav files since there are sync issues. If there is anything that will cause problems I contact the creator after reviewing their file. Of the 63 entries processed so far only two were MPEG-2 that did not have muxed audio.

Our equipment setup this year will once again be using a Netstream card to output MPEG-2 files. If you sent us an MPEG-2 that is the file we play.

That tech post was made for three reasons:
1) To inform everyone so hopefully someone else doesn't try this.
2) Make a stab in the dark in hopes someone knows a magic trick I don't.
3) So everyone can lolz at me.

<--- Detecting A/V sync issues since Acen 2001. *Props if you remember*
"Trust me, I know what I'm doing" ^_^

outlawed · Post by **outlawed** » Sun Apr 22, 2007 10:48 am

I have processed the remaining entries. All e-mail confirmations have now been sent.

There will not be a list of finalists published prior to the contest.

Below you will find the AMV Room Schedule. Hopefully I didn't screw anything up. Hopefully Sailordeath can double check me

====================================================

Friday
-------
10:00-14:00 Freeplay
14:00-16:00 AMV Beginner Panel
16:00-17:00 AMV Panel Overflow
17:00-19:00 AMV Advanced Panel
19:00-20:00 BREAK
20:00-23:00 AMV Contest
23:00-24:00 BREAK

Saturday
----------
00:00-03:00 The AMV Wars, Hentai Edition

09:00-10:00 Freeplay
10:00-11:00 BREAK (May be changed to 30min Freeplay/ 30min BREAK or such)
11:00-14:00 AMV Contest
14:00-15:00 Koom and Atom's Top 10 Indie Vids
15:00-16:00 Anime Music Videos: Now With More 3D
16:00-17:00 Female Editor AMV Showcase
17:00-18:00 Iron Editor Panel
18:00-19:00 BREAK
19:00-23:00 Iron Editor
23:00-24:00 Happy Fun Time

Sunday
-----------
00:00-02:00 Happy Fun Time
02:00-03:00 BREAK
03:00-05:00 A Night with Nat-chan & Mat-chan

07:00-10:00 AMV Contest
10:00-13:00 Freeplay
13:00-14:00 BREAK
14:00-15:00 Awards Ceremony

Pwolf · Post by **Pwolf** » Sun Apr 22, 2007 8:09 pm

ohhh the Koom and Atomx indie panel... i can't wait. That Koom guy is awsm

Pwolf