audio and video dropouts

[eriksen76]

Listen carefully now Jdobbs............

All stutter seems gone now with version 0.69 - Just tested it on the movie which left me like 30% of the stutter with version 0.68

Incredible work!!!!!!!

/Eriksen76

[Ngr]

Great work JDobbs

I am always testing a few movies between each release. I,Robot which had more than 30 audio dropouts on several different parts of the movie, now i can only detect about 5. Thats a major improvement.

Thanks

[eriksen76]

Originally posted by Ngr
Great work JDobbs

I am always testing a few movies between each release. I,Robot which had more than 30 audio dropouts on several different parts of the movie, now i can only detect about 5. Thats a major improvement.

Thanks

Did you test this one with version 0.69 - This is the first time that I have got rid of all the stutter.

I thought all had the problem solved now

I haven't heard of any with "drop-outs" since version 068 - only "audio stutter". Which was solved for me with 0.69.

/Eriksen76

[Ngr]

@Eriksen76

I did test it with .69 but i think that what i refer to as drop outs may actually be stutters. Since english is not my native language i cannot be sure of the differentiation. What i experience is that at certain points in the movie(almost always the same), i momentarily loose sound. That lasts for a few millisecs i believe. Because the duration is so sort, i am not sure if the sound is gone completely or its just very low in volume. Could you please explain to me the difference between stutters and dropouts?

[J-Wo]

re: stutters vs. dropouts

I'd really like to know that definition as well. Based on your description Ngr, that sounds like an audio dropout. i.e. the sound literally "drops" out for a second or less. As if you pressed the mute button on then off. I assume a video/audio stutter occurs when there is a "hiccup" in the movie, i.e. a short repetition of a small segment of the film. Think of when your CD or record has a scratch and so "skips".

Personally I have never experienced stutters, only audio dropouts. I'm anxious to see the results of my 0.69 encode from last night, but I can't check til after work! :)

[eriksen76]

Originally posted by J-Wo
re: stutters vs. dropouts

I'd really like to know that definition as well. Based on your description Ngr, that sounds like an audio dropout. i.e. the sound literally "drops" out for a second or less. As if you pressed the mute button on then off. I assume a video/audio stutter occurs when there is a "hiccup" in the movie, i.e. a short repetition of a small segment of the film. Think of when your CD or record has a scratch and so "skips".

Personally I have never experienced stutters, only audio dropouts. I'm anxious to see the results of my 0.69 encode from last night, but I can't check til after work! :)

My definition (dont know if its right) is that the video drop outs are when the movie acts if there is a tiny scratch in the media and so "skips". Example: A man jumps into the water and when it splashes it acts as if i hit pause/resume very fast. So the audio is affected as well. Almost like a fast layer break. But as mentionend these errors are no longer there for me after version 0.68 was released.

Regarding the audio stutter the picture is not influenzed at all. It acts as you decribed before:
i.e. the sound literally "drops" out for a second or less. As if you pressed the mute button on then off.

I have not seen this error after version 0.69

Hope I explained myself in an understandable way...

/Eriksen76

[dannyv]

Originally posted by eriksen76
My definition (dont know if its right) is that the video drop outs are when the movie acts if there is a tiny scratch in the media and so "skips". Example: A man jumps into the water and when it splashes it acts as if i hit pause/resume very fast. So the audio is affected as well. Almost like a fast layer break. But as mentionend these errors are no longer there for me after version 0.68 was released.

Regarding the audio stutter the picture is not influenzed at all. It acts as you decribed before:
i.e. the sound literally "drops" out for a second or less. As if you pressed the mute button on then off.

I have not seen this error after version 0.69

Hope I explained myself in an understandable way...

/Eriksen76

That sounds right to me.

Studder is when both audio and video are affected (Slight jump or glitch in both picture and sound)

Audio drop out is when the audio cuts out for a fraction of a second but the video is unaffected.

[gizzin]

I Did a 6pass encode with cce v2.67.00.23, Avisynth 2.5.5.0, Decoder v1.0.1.0. DVD rebuilder v69 (Thanks Jdobbs) is the one i used but it seems to have the same dropouts in the same place and it eventually causes the audio to be out of sync with the video. So do you think this buffer underun is the problem or does it just have to be tweaked more. It was tested on a Pioneer DV-434.

[dannyv]

Originally posted by gizzin
I Did a 6pass encode with cce v2.67.00.23, Avisynth 2.5.5.0, Decoder v1.0.1.0. DVD rebuilder v69 (Thanks Jdobbs) is the one i used but it seems to have the same dropouts in the same place and it eventually causes the audio to be out of sync with the video. So do you think this buffer underun is the problem or does it just have to be tweaked more. It was tested on a Pioneer DV-434.

@Gizzin

I noticed the more passes you do the worst the dropouts are. There is no quality benfit to doing so many passes. Try doing 1+2. I think this will solve your dropout problem.

[eriksen76]

Originally posted by dannyv
@Gizzin

I noticed the more passes you do the worst the dropouts are. There is no quality benfit to doing so many passes. Try doing 1+2. I think this will solve your dropout problem.

Strange. Ive never seen a patern in the number of passes vs. number of drop outs. But you might be right

Please let us know if it makes any differences for you.

What do you say Jdobbs??

/Eriksen76

[gizzin]

ya i've noticed that too, with a previous version along time ago i did a 1pass w/analysis of Gang Related R1 and it removed the dropouts completely. Btw erikson76 not stuttors in the video, dropouts of the audio for a couple miliseconds. I've never noticed any sort of video stuttor in any of my encodes.

[J-Wo]

Well I'm VERY happy to report that I am audio dropout free using v0.69! Used to get them all the time on older versions, and attributed it to my using the custom notch matrix and OPV encoding. But my recent test showed that was not the case, so I think 0.69 has definately solved the problem for me. I think I've decided that I get better quality from 2 pass VBR and the standard CCE matrix though... which is too bad cause it takes twice as long but I guess DVD-RB has converted me from OPV!

[Ngr]

After many experiments the past few weeks i am convinced that the audio dropouts( video is not affected) i experience are very much desktop player dependent. I have a pioneer dv-535 and dv-717 and they both excibit this behavior. But they are both manufactured the same year. Dv-717 was the top model of the year. I tried playing my problem dvds in a friends players (extremely cheap models, less than $150 each) and they played ok. I think that later players are much more relaxed in their parsing or whatever.

[gizzin]

I tried doing 1+2 passes on Summer Of Sam R1. Which i was hoping would remove the audio dropouts. But unfortunatly this didnt work this time.

[jdobbs]

@gizzin

You seem to have more troubles with this than anyone... and I suspect it is not related to what others have reported. I need to know some things:

1. What kind of player do you have?
2. Do you do any kind of pre or post processing?
3. What audio do you keep (Dolby 2.0, 5.1, DTS?)
4. Do you use any of the addon packages (RB-Opt, RB-Keeper, etc)
5. How many dropouts would you say you get per disc?
6. Is it only audio, or do you also see video hiccups?
7. Has your problem improved at all since v0.67?

[gizzin]

First off, I have a pioneer DV-343. I never do any pre-processing of movies. Depending on the DVD i usually only keep the DD5.1 but in the case of Summer of Sam R1 its the only track anyways. No I don't use any of the addon packages. In most cases there is usually only about 2-4 dropouts on a disc. Summer of Sam this is not the case there seems to be more. Just the audio I have problems with, I've never had any sort of video problems (With newer releases at least). V67 Of Rebuilder seems to reduced the number of dropouts in Summer Of Sam R1 since this is the only DVD I've been testing with almost every version. V68 and 69 the dropouts seem to be the same to me. Alot of the dropouts are in one location so it's generally easy to tell. Hope this helps in any way. One question for you, Have you completely eliminated the Buffer overflow or underflow error? or do you plan on it?

[gizzin]

Correction. I've never tested it with v68.

[jdobbs]

What version of CCE are you using?

[gizzin]

CCE SP 2.67.00.23 trial

[Lorek]

I'm getting Audio Drops on Neon Genesis Evangelion using

Rebuilder .69
Lite On Burner 16x DL
Tested on Playstation2 Dvd Player
Media TDK 8x 4.5gb
CCE V2.69.01.10
Works fine when I play it using PowerDVD on my PC but
not on my standalone.



1. What kind of player do you have?
I'm playing it on a Playstation 2

2. Do you do any kind of pre or post processing?
No

3. What audio do you keep (Dolby 2.0, 5.1, DTS?)
5.1

4. Do you use any of the addon packages (RB-Opt, RB-Keeper, etc)
No

5. How many dropouts would you say you get per disc?
40+, I only watched the movie halfway through.

6. Is it only audio, or do you also see video hiccups?
Its only Audio