Hello guest, if you like this forum, why don't you register? https://fanrestore.com/member.php?action=register (December 14, 2021) x

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[Help] Identify and Repair an Audio Artifact
I'm working on an audio sync and found that the DVD track I have contains some audio artifacts. Click? Pop? I'm not sure what the term is. For context, it's a film from the 1940s.

Here's a very short sample (ignore the hiss): https://voca.ro/1jBzL2dJmRNC

What it looks like on waveform:

[Image: IILWSmI.png]

And on spectrogram. It's the highlight in the low frequencies.
[Image: C4NUhvG.png]

My questions:
  • What's it called? Pop? Click?
  • What's the best way to remove them? When there's no dialog, I can duplicate an adjacent segment to cover it. Otherwise, Izotope's "De-plosive" seems to work. Just wondering if there's a more proper tool because "De-plosive" is described as targeting "consonant speech sound."

Thanks given by:
trial and error but there is a lot of options within izotope you can try. i use de-click with the multi-band (random clicks) option for cleaning up most of my vhs recordings. the lowest sensitivity usually removes almost all tape artifacts but sometimes i bump it up a bit with testing. but most vhs artifacts run the spectrum from 20hz-20khz. not sure exactly what issues your source has though.

in izotope, zoom in and highlight a small section you want to test, like a single section with the artifact. then click the de-click option (or any other one you wanna try) on the right side. there's a small '?' mark in the upper right hand corner of the pop up that will give you a rundown on all the options/settings. then hit compare and a new window pops up that lets you compare the source to the rendered versions with the settings you selected. this lets you test it out without needing to render the entire file which can often take some time.

depending on what you're trying to clean up, it's still just a lot of playing around. i pretty much only use de-click, de-crackle, and de-hum. PM me your audio source and i can play around with it as well.
Thanks given by: axeyou , xwmario
Thanks, Yarp! Yes, I already tried highlighting a small section and selecting a bunch of different de-... tools. Only de-plosive worked.

Re. source issues, it seems to be baked into the DVD master. It's also present on another more filtered DVD release.

Anyways, I've now examined the track a little more closely and realized that it's literally littered with this artifact, so I feel manually going through every instance probably isn't worth my time. Also tried "Find Similar" in Izotope and it missed a lot of instances. Fortunately, I don't think these are not super noticeable. I'll release it as is and send you a copy if you are interested!
Thanks given by:

Possibly Related Threads…
Thread Author Replies Views Last Post
  [Help] How to apply delay to a whole video file, not just the video or audio streams? Red41804 7 1,675 2024-02-12, 11:03 AM
Last Post: Hitcher
Music [Help] Detect whether 2.0 Audio is Dual Mono or Stereo GjRedo 2 1,018 2023-12-09, 08:35 PM
Last Post: Doctor M
Question [Help] Slow down or speed up Audio for projects bendermac 18 6,313 2023-08-25, 01:59 AM
Last Post: Falcon
  [Help] 2 VHS Audio Captures to remove faults. CSchmidlapp 16 10,492 2023-07-03, 12:15 AM
Last Post: wongfeihung
  [Help] Automatically Sync The Audio From Another Source? Endocryne 1 1,554 2022-10-09, 09:47 AM
Last Post: Serums
  Working concept syncing different audio sources SIUse 20 8,544 2022-06-23, 05:08 PM
Last Post: alleycat
  [Help] Audio Delay - What does what bendermac 1 1,453 2021-12-10, 12:37 PM
Last Post: resolution
  Need help choosing audio mixing software. Doctor M 5 2,858 2021-07-19, 03:51 AM
Last Post: Doctor M
  Should audio last (almost) as long as video? pipefan413 13 7,703 2021-04-07, 12:57 PM
Last Post: pipefan413
  Any way to test an audio file for resampling/bit-depth conversion? BusterD 5 3,367 2020-12-04, 09:46 PM
Last Post: BusterD

Forum Jump:

Users browsing this thread: 1 Guest(s)