Audio being robotic

JhonConners wrote on 11/22/2016, 10:13 PM

Sometimes, when I import videos, the audio from my microphone will be robotic, but will be fine in any other media player.

Also, when I open the trimmer for it, the audio is fine.

But when I render it, it is robotic.

I have been asked this before, yes the audio bitrate is set to the same as the video.

<- Here is an example

Any way to fix this?

Comments

Former user wrote on 11/22/2016, 10:23 PM

You have two audio tracks, try deleting one and see if that fixes it.

JhonConners wrote on 11/22/2016, 10:26 PM

Yes I have 2 audio tracks. Why is that an issue? If I load in say two songs it doesn't make them robotic...

Former user wrote on 11/22/2016, 10:27 PM

Is is the same audio on both tracks? If the tracks have the same audio, but they are not exactly in sync or a different source, they will phase and try to cancel. It sounds like it is phasing.  Just try to delete it (if it is the same audio) and see if it fixes it. Nothing to lose.

 

JhonConners wrote on 11/22/2016, 10:31 PM

Yeah, I understand what you're saying. And they were both recorded at the same

time (obs recording microphone and audio into two differrent tracks) with the same bitrate and all...

Former user wrote on 11/22/2016, 10:33 PM

Have you tried to delete the track? did it make a difference?

JhonConners wrote on 11/22/2016, 10:37 PM

I Am currently not at my computer. Sorry. 

Former user wrote on 11/22/2016, 10:37 PM

Okay.

JhonConners wrote on 11/23/2016, 11:07 AM

Yes, deleting the track that was not robotic made the one that was, not robotic.

 

So can I import the video again, delete the first one, to get the second one back? 

How can I fix this robotic, yet still have both tracks?

Former user wrote on 11/23/2016, 11:11 AM

You probably can't fix it. Since it is the same audio, do you need both tracks? You can delete either track, whichever works best for you.

JhonConners wrote on 11/23/2016, 11:18 AM

Well, thing is it used to work fine. So I don't know why now it can't play both tracks...

Former user wrote on 11/23/2016, 11:37 AM

I couldn't guess what changed, but since it is an easy fix, either mute or delete one of the tracks, I think you are good to go.

JhonConners wrote on 11/23/2016, 12:10 PM

Yes that is a possibility... but I need both tracks (gameplay footage where 1 track is my microphone and the other is the game audio)

 

would it be possible to render out say the microphone as an MP3 (won't take long AT ALL) to get it in a different format and import that?

JhonConners wrote on 11/23/2016, 1:38 PM

Nope, just tried rendering out one track as an mp3, and then placing it in.. didnt work..

this is so frustrating... 

NickHope wrote on 11/23/2016, 10:15 PM
  1. Options > Preferences > Editing > check "Do not quantize to frames for audio-only edits"
  2. Uncheck "Auto-ripple" (button below timeline)
  3. Zoom way in on your timeline with the mousewheel or your keyboard's up arrow or the "+" button at the bottom right of the timeline.
  4. Drag the lower audio track left or right until the audio waveform preview of the 2 audio tracks matches up as closely as possible. If you need to drag that track left, you can use the slip tool instead of the normal edit tool, or you can cut a bit off the start of it. You can drag the audio tracks taller in the track header to make the waveform easier to see.

Might not be as "unrobotic" as without the 2nd audio track but will sound better than if the 2 audio tracks are slightly out of sync.

JhonConners wrote on 11/27/2016, 11:59 AM

Hmm I'll try it. That's weird. 

 

David said it's robotic because it's trying to playback the same audio samples in both tracks

 

so

In OBS Studio (what I use to record) there's an option to change the bitrate per audio track. So would leaving track 1 at 320kb/s and the second on another option, say 288kb/s make it not robotic? Since it's not the same audio anymore?

NickHope wrote on 11/27/2016, 9:02 PM
In OBS Studio (what I use to record) there's an option to change the bitrate per audio track. So would leaving track 1 at 320kb/s and the second on another option, say 288kb/s make it not robotic? Since it's not the same audio anymore?

No. Bit rate is nothing to do with it. It's almost certainly because the 2 tracks are slightly out of sync. Following my instructions should help.

Former user wrote on 11/27/2016, 9:19 PM

What you are hearing is a result of two stereo tracks being slightly out of phase. If they were recorded at the same time and followed the same electronic path, they should be perfectly in sync, but they aren't so you would have to assume that the audio on track 2 was recorded slightly different than the audio on track 1.  Doing what Nick suggested might help, but you will then have an echo sound as the audio is delayed on one track or the other. I don't know why you need the same audio on 2 tracks when they are causing such a problem.  Are you getting confused with recording to a Stereo track, which is what you have also done. In a stereo track, you have a left and right input, which may be the same or may not. If you are recording one thing to the left input and something else to the right, then you do not need both tracks, just the channels within a stereo track.

 

How are you recording in order to get 4 channels of audio?

NickHope wrote on 11/27/2016, 9:25 PM

I don't know why you need the same audio on 2 tracks when they are causing such a problem.

I think his mic is picking up the sound from his speakers, but he also wants to keep the original audio from the game. Wearing headphones when he plays the game would solve that.

Doing what Nick suggested might help, but you will then have an echo sound as the audio is delayed on one track or the other.

My steps remove the delay so should remove the echo.

JhonConners wrote on 11/27/2016, 9:28 PM

Not at all. One track is my microphone, the second is the game audio. I am using headphones there is no echo. Watch the video I linked in the original comment

Former user wrote on 11/27/2016, 9:28 PM

Nick, it that is indeed what he did, then your steps may minimize it, but it is not the same path, so there will always be some phasing or echo. 

 

edit:, then you are getting bleed through somehow. See my next post.

Former user wrote on 11/27/2016, 9:30 PM

JhonConners, can you upload the video with one track muted and then another with the other track muted so we can more intelligently see what you created? Right now your video does not show the wave form of the second track. 

JhonConners wrote on 11/27/2016, 9:39 PM

JhonConners, can you upload the video with one track muted and then another with the other track muted so we can more intelligently see what you created? Right now your video does not show the wave form of the second track. 

Umm.. alright. So basically when I muted/deleted the second track, the first was fine(the first being my microphone) 

 

i will upload a video of it, but it's very inconsistent. Some times it'll work fine with Sony Vegas and other times it won't and sound robotic like this. 

 

Aswell as that video is a month old, and I have deleted that certain video. 

 

BUT I can find another one where it is robotic and upload it. Do not fear!

NickHope wrote on 11/27/2016, 9:55 PM

Best thing you could do is upload a short Vegas project to Google Drive, Dropbox public folder etc., containing both audio tracks along with the media for them. Even a screenshot of a project with tall audio tracks would help us understand.

JhonConners wrote on 11/27/2016, 10:00 PM

Yes I understand.