Audio Stutter

[Tasana Studios]

Hello
I have seen a few topics close to this, but unless I missed it I can't find one related to my exact issue.
I use two cameras to capture video. I have been using my Sony DCR-SR47 Almost since the day I bought VSX3. I am still using both. However I am now having stuttering in the audio. Please note I do not have to render the video. I can import the video and play a clip fine, once I trim it then do a playback without rendering it I get the stutter. It occurs at regular intervals.
Here is an example
http://www.youtube.com/watch?v=WRUYCpR4l5Q
The audio is also giving me a "reverb" effect. Like a barrel effect.
This is the input format of the footage

This is the output footage

Here is another example, here I converted to AVI, yet same effect.
http://www.tasana-studios.com/hatch-wedding.html
Output


Using Windows XPSP3 with all current updates. And have all codex installed. I did switch from using CCCP codex package to K-Lite recently.
Thanks
Gregory

[Ken Berry]

A couple of things... First, while you give us lots of detail about the video component of your project, those screen shots show absolutely nothing about the audio component. Forget Mediainfo for the moment, and instead, right click on your problem video inside VS -- either with a clip in the timeline, or in the Library window -- and copy ALL its Properties here, please. Or of course, post screen shots of the dialogue box which appears when you click on Properties. That way we will know what audio goes with your video...

Next, you mention use of codec packs. We always recommend extreme caution about installing any codec packs, and more often than not K-Lite is a culprit for a number of problems. Such packs have their uses, but you need to know exactly which codec(s) you are after, and simply download them from the pack. Installing an entire codec pack willy-nilly almost inevitably results in problems. That is because they are usually thrown together for quantity rather than quality. Many of the codecs in such packs conflict with each other, and of course can also conflict with codecs installed or used by programs such as VS. So my advice would be to uninstall whatever packs you have, and reinstall only what codecs you think you need.

[Tasana Studios]

Ken
Wow the second I read your first few words I realized I did post the video information, here is that you seek
Input

Output MPG

Output AVI

And I will uninstall k-lite and post what I get from that
Thanks.

[Ken Berry]

A couple of thoughts: first, your output file uses Lower Field First, when it should use Upper Field First to reflect the Field Order of your original mpeg-2. That's one of the "golden rules" of video editing, though it should not necessarily produce any effect on the audio; only on the video component, where it produces noticeable distortions and jagged edges, particularly in fast moving panning shots and with vertical lines...

Second, with your DivX video, is it possible to choose a different audio than MP3. Although VS can handle mp3 audio, it has difficulties with some of the mp3 codecs, and particularly the LAME_MP3 one. I am wondering also if one of the K-Lite mp3 codecs might have come into play here and is causing the problem. If possible, choose Dolby if DivX offers that choice, or else (L)PCM if that is available. But essentially anything except mp3...

[Tasana Studios]

It was the k-lite. removed it, restarted then ran ccleaner and removed the last part of it and the video is running fine. Thanks Ken.

[Ken Berry]

Glad it is working... but you will still need to correct the Lower Field First output setting...

[Tasana Studios]

This presents a serious challenge.
All my audio files are MP3, even my effects, and most were created with LAME. ARG!. I use Audacity for my primary audio editor and export everything as an MP3. This is going to be a hard slow turn.
I will start to rip my music as a WAV, and just start rebuilding slowly. When I do export as MP3 I save in the highest quality. I will alter my settings in Media Player today. And see to the Field Order as well.
Thanks.

A couple of thoughts: first, your output file uses Lower Field First, when it should use Upper Field First to reflect the Field Order of your original mpeg-2. That's one of the "golden rules" of video editing, though it should not necessarily produce any effect on the audio; only on the video component, where it produces noticeable distortions and jagged edges, particularly in fast moving panning shots and with vertical lines...

Second, with your DivX video, is it possible to choose a different audio than MP3. Although VS can handle mp3 audio, it has difficulties with some of the mp3 codecs, and particularly the LAME_MP3 one. I am wondering also if one of the K-Lite mp3 codecs might have come into play here and is causing the problem. If possible, choose Dolby if DivX offers that choice, or else (L)PCM if that is available. But essentially anything except mp3...

[Tasana Studios]

Not fixed!
I did notice this at a point that it "stutters'

If you look at the audio track at 9:21 the audio flattens and then restarts. The audio is there in the original file but only after a trim and before that trim is rendered this happens. It only recently started to happen, and I have removed all extra codex packs. So I am scratching my head now.
But to make it even more confusing, it only happens on video from my Sony DCR-SR47. My other cameras are fine.
I wonder if something is wrong in the software of my Sony?

[Tasana Studios]

After checking every possible issue that I could think of I have determined it to be the Sony. The Sony is over 2 years old and has a 60GB Platter Hard Drive. The only thing that I can figure out is the HDD in the Sony as well as the Sony Software in the camera is at issue. The Sony does not save in one large continues file. It saves my audio/video in small chunks then it has a program on my computer that recombines these pieces into one file. I first noticed this from an event back in February, but figured it was the stadium. I have rendered video from the other camera as well as imported audio from other sources into VSX3 and it comes out perfect.
This is the only audio/video that is failing.
What makes this matter super bad, is the Bride & Groom had hired a big name photographer to do the photos. He has connections out the wazoo and he was wanting to see my work. This would have landed me some great jobs.
However all is not lost.
I can pull the audio off the second camera for the wedding, and I will remove the audio from the reception and replace with the songs from MP3's. So the only part that is going to suffer is the rehearsal, I can pull the audio off, but some very funny things were said.
I have ordered this
http://www.bhphotovideo.com/c/product/6 ... Flash.html
It will be here Monday. It does 24fps as well. It retails for $799.00 but on sale for $499.00. Has inputs and although no manual focus, it does have more control then my Sony, and an SD Hard Drive no moving parts. My budget was under $500 so it was the best I could do.
Once I have a failure of this magnitude I tend to avoid that brand for life, so Sony is no longer in my pouch. I will of course use the camera for a backup video source, but it is a sad day. When I bought the camera a very good friend told me I would regret it buying it due to the moving hard drive. In fact he predicted this. So I can see I have a crow pie to eat when he ask me about this. I have eaten crow pie before, you get use to the taste after a while.
I think I will be happy with the Canon, had awesome reviews, and I like the specs for the price.

[Black Lab]

I guess this question should have been asked from the get-go - does the raw footage from your camera exhibit the audio glitch? (i.e. played directly from cam to tv)

[Tasana Studios]

Hello Jeff;

In RAW it does not stutter. However in the media information the "joints" are noted. I believe what is taking place is this.

While recording it writes in small files to the HDD.
When transferred to the computer the Sony software rejoins the pieces to make a complete file, but the Sony software "marks" the joints for editing.
(VSX3 never had an issue before the Assembly recording in February and this never happened before then)
Once I pull the video into VSX3 it stutters at exact intervals, the rejoined parts. It drops flat line, then stutters when picking back up.

I had a second camera that I relied on for backup that has now taken the place of primary for this wedding. That footage came out perfect both audio and video. Ken mentioned the fields, I looked at the footage from the Sony raw, it has the lower first, VSX3 is flipping that over each time.

At the Assembly in February we sat on the bottom row against a wall, really out of traffic. however I had to assist with something off stage and left the camera with my son, someone decided to use the wall for a shortcut and my son said the camera was jarred. I never gave it a second thought since it still recorded. That footage was the beginning of the stutter. I dismissed it then thinking I messed up, but after this and thinking it through it seems like the logical reason. Would you agree, or should I pursue another course? For video the camera is useful but at this time I can't trust it for audio.
Also just to mention it again, all other audio from all other sources is working fine in VSX3.

[Tasana Studios]

Ok the stutter is now showing up in ALL audio.
When I noticed it I un-installed and re-installed VSX3.
Here is what is weird.
When I put video files in the Video Edit thumb area I can click the file and play it back in the preview window and perfect audio. When I pull the video file onto the timeline, that is when i get the stuttering. ONLY when the video is on the time line. If I render that timeline I get that stutter.
Gregory

[Tasana Studios]

I guess I should have left the photos, But anyway. After toying around on this matter I "THINK" I found the cause.
It was a codec but not the codec packs. (However I will refrain from installing them) But I think it was a program I use and love called QMC, Quick Media Converter. A perfect little app to quickly convert any format into any format and it has been free for years. But I noticed the issues started after the latest update. Even the program itself crashed all the time. So I did a fresh install of the OS and did not install QMC, thus far all is well.

[Clevo]

Those converters are also installing packs of codecs...