Audio distorted once it is exported

[asik1]

it's getting ridicules,
Distortion is clipping,
export the raw and rendered clips as .wav
(you can do so in gazillion programs other than VS.)
take the the wav's to audacity and compare.

*** I haven't done that.

[rscott22]

Hi Ryan

No way are you being a pain, I do believe you when you say you can hear the distortion, something that I cannot identify.

I have rendered a 1 minute section from the original video GPO10241.MP4
This is the same section as your Rendered Video 1 Minute length.mp4

My rendered sample is called “Same as Project 1 minute.mp4”
That rendered quite quickly using Smart Render

I will uploaded the sample “Same as Project 1 minute.mp4” to my Google Drive and provide the link when done.
Can you compare GPO10241.MP4 (first minute) with this file.
https://drive.google.com/file/d/0ByJ2mS ... sp=sharing

Can you do another test
1 / start a new project
2 / add the GPO10241.MP4 video, from the message say yes to matching the project settings
3 / cut the video at 1 minute removing the last section
4 / Share – choose Same as Project Settings

How does that video sound?

Ok

I have listened to the two YouTube samples, I opened the two in my browser, hit F11 to hide the tabs, play any one for a while, Hit Space Bar to play / pause, Hit Ctrl+ Tab to switch tabs to play the second clip, Do that a few times and I have no idea which sample I am listening to, nothing to distract me and they both sound the same? I must be missing something, maybe my hearing is not as good as it used to be?

Can you take a video screen capture of your YouTube playback as it does seem as though you are listening to a different video.

If the problem is with YouTube have you tried using Vimeo

Whatever your settings you have set for the “Same as Project 1 minute.mp4” the audio was perfect! No distortion at all/robot noise in the background.

I am currently at work, but as soon as I get home I plan on testing out what you have suggested. I will keep you posted and hopefully this resolves the issue. My one issue is, COREL never asks me to match settings anymore (it used to at one time) but no longer asks me that when I drop in video.

[lata]

Hi Ryan

I wrote this in an earlier reply, I had thought you had tried settings same as video.

Hi
Using the clips I managed to download I rendered the project ( 4 min 22 sec) using Share Same as first Clip
I playback the video with no problems

There are clicks and noises from the engine as I mentioned earlier, but no distortion as you seem to be hearing.
You indicate the distortion is noticeable.
If I were to play that video without being told there was a problem I would think it normal.

I guess you need to upload those samples, the original video and a rendered version.

By the way when you render the video what options did you choose?
I used same properties as original video

Go to preferences ( F6) make sure Show Messages is ticked, that should prompt you to match the settings, but only works for the first (compliant) video added to the timeline.
Start a new project to test this option.
Once the project properties match the video it should help Smart Render, we can use Same as Project or First clip options.

If we choose any default templates provided by the program we may be changing the settings, your video uses 59.94 fps and a high data rate, if we reduce that to 29.97 would impact on quality.
Whether we notice that difference is debatable.

[rscott22]

Hi Ryan

I wrote this in an earlier reply, I had thought you had tried settings same as video.

Hi
Using the clips I managed to download I rendered the project ( 4 min 22 sec) using Share Same as first Clip
I playback the video with no problems

There are clicks and noises from the engine as I mentioned earlier, but no distortion as you seem to be hearing.
You indicate the distortion is noticeable.
If I were to play that video without being told there was a problem I would think it normal.

I guess you need to upload those samples, the original video and a rendered version.

By the way when you render the video what options did you choose?
I used same properties as original video

Go to preferences ( F6) make sure Show Messages is ticked, that should prompt you to match the settings, but only works for the first (compliant) video added to the timeline.
Start a new project to test this option.
Once the project properties match the video it should help Smart Render, we can use Same as Project or First clip options.

If we choose any default templates provided by the program we may be changing the settings, your video uses 59.94 fps and a high data rate, if we reduce that to 29.97 would impact on quality.
Whether we notice that difference is debatable.

Thank you again for the suggestions and help! Sadly per usual, the noise is still there even after matching attributes.

I decided to try recording in 30FPS with my camera, matching attributes and see if that would fix the issue. Again, same results and has the weird distortion/robot noise in the background.

Any other suggestions?

I'd like to try and upgrade to the new Corel software and see (if for some unseen reason) if it fixes the issue randomly. I'd rather not spend the money though for a program I haven't had all that long.

[lata]

Whatever your settings you have set for the “Same as Project 1 minute.mp4” the audio was perfect! No distortion at all/robot noise in the background.

You tested my sample and said there was no playback problems, so why cant you replicate that good video?

We all seem to be struggling to identify this audio issue, other than you and your friends at that side of the pond.
I don not have an answer to that.
When I compare the wave forms I can see some discrepancies but only when changing the render properties, (Downscaling) even so playback for me seems ok.
I can hear the engine noise and other background noise, clicks and rattles as you change gear, your voices sound the same to me as the original.

I did ask that you do a Screen Capture whilst playing the problem video, at least that will capture what you hear.
Comparing playback on YouTube is not very good as YT recodes the video as we upload, but I suppose we should be able to compare samples.

Upgrading to X10 in my option will produce the same quality, for you that's poor, only my opinion that is, so upgrading is not gonna fix things.

I had thought that you should record using a lower rate, the 1920 x 1080 x 59fps x 44998Kbps is high, a bit of overkill, more suited for fast action video.
Recording at 29.97 x 20000kbps should produce good quality at a much lower Gb. The later being suitable for Bluray, the quality level it would create.

[asik1]

Trevor, I implemented your last comment when I changed my action cam firmware from the original that did 30mbps for HD to just 15mbss with no apparent loss.
Just today I made a test and found that my 8GB card will hold 67min of continues video up to its rim.
2 X ~3.5GB files 30min each and a third of ~900Mb 7min long.

[rscott22]

Well guys, I don't know what it is but by just using a WMV file to render the noise goes away. It seems the MPEG4 and .MOV for some reason adds extra noise (or picks it up) how? I have no idea, but this will suffice for now.

Just wanted to come back in and say thank you to all of you for helping me! I don't know any of you personally, but I appreciate anyone that goes out of there way to help a stranger with an issue. Hope you all have a great day and I'd buy you all a ice cold beer if I could!

[rscott22]

Well scratch that... back to square one! When rendering with a .WMV file it adds random click and pops now... again, the raw audio has none of this noise, test COREL adds it every time!

I'll send you guys a copy of that file here later tonight, back to square one. Something is wrong inside the Corel program I am to the point where I am 99.9% sure there is nothing wrong with my settings. I've changed everything from, microphones, to cameras and even computers. The only constant is COREL and that's what has to be causing the problem.

[tletter]

When rendering with a .WMV file it adds random click and pops now... again, the raw audio has none of this noise, test COREL adds it every time!

You may find that this audio issue is related to that discussed in http://forum.corel.com/EN/viewtopic.php?f=1&t=61761

It also sounds like the problem I've encountered with X10 namely, "I've added narration to a VSP and it sounds fine in the preview window but when I render the file as a m2t file the audio has glitches at the end of some of the sound clips" (see http://forum.corel.com/EN/viewtopic.php?f=1&t=61631). I've found no solution.