Removing tiny 'cracks' from vinyl rips

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Trebor
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Joined: Sat Dec 27, 2008 5:22 pm
Operating System: Windows 8 or 8.1

Re: Removing tiny 'cracks' from vinyl rips

Post by Trebor » Tue Sep 15, 2020 8:39 pm

Awareman wrote:
Tue Sep 15, 2020 7:07 pm
I have used the spectogram view to locate the missing cracks and it quite worked well. ...
Though there are still extremely tiny cracks I can percieve but not locate ...
If you can hear them they will be visible on the spectrogram,
but you may have to adjust the spectrogram settings to see them.
Awareman wrote:
Tue Sep 15, 2020 7:07 pm
What are the "spectogram tools" ...
https://youtu.be/A5ErzybkrGc

Awareman
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Operating System: Windows 10

Re: Removing tiny 'cracks' from vinyl rips

Post by Awareman » Fri Sep 18, 2020 6:12 pm

I have been trying the spectorgram tools and watched the video but that seems a bit complicated for me.
I tried the equalizer for some noises too and it worked for a noisy segment. Now I have some static/interferences I can't figure out how to remove.
Here is the sample with a screenshot of the graphic with 2 different spectogram view settings.
sample.flac
(146.6 KiB) Downloaded 15 times
interferences.png
interferences.png (599.18 KiB) Viewed 347 times
So, if anybody can help with that, it's welcome.

Trebor
Posts: 9954
Joined: Sat Dec 27, 2008 5:22 pm
Operating System: Windows 8 or 8.1

Re: Removing tiny 'cracks' from vinyl rips

Post by Trebor » Fri Sep 18, 2020 8:46 pm

Awareman wrote:
Fri Sep 18, 2020 6:12 pm
I have been trying the spectorgram tools and watched the video but that seems a bit complicated for me.
I tried the equalizer for some noises too and it worked for a noisy segment.
Now I have some static/interferences I can't figure out how to remove.
Reduce the spectrogram FFT window-size to 128 to see clicks.

The clicks will be easier to see if you apply this sort of equalization first to "sample.flac (146.6 KiB)" ...

suggested equalization.png
suggested equalization.png (36 KiB) Viewed 345 times

Awareman
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Joined: Fri May 01, 2020 9:02 pm
Operating System: Windows 10

Re: Removing tiny 'cracks' from vinyl rips

Post by Awareman » Fri Sep 18, 2020 9:20 pm

Thank you. I did what you suggested but it didn't work.
Here is the graphic at 128. The equalization you suggested didn't remove the clics/cracks/parasites :-/
The repair tool is not working either on these. It actually makes it even worse.
Desktop Screenshot 2020.09.18 - 23.07.22.63.png
Desktop Screenshot 2020.09.18 - 23.07.22.63.png (214.43 KiB) Viewed 335 times

Trebor
Posts: 9954
Joined: Sat Dec 27, 2008 5:22 pm
Operating System: Windows 8 or 8.1

Re: Removing tiny 'cracks' from vinyl rips

Post by Trebor » Fri Sep 18, 2020 10:31 pm

Awareman wrote:
Fri Sep 18, 2020 9:20 pm
The equalization you suggested didn't remove the clics/cracks/parasites :-/
I didn't claim it would: removing that trebley noise makes them more visible on the spectrogram.

Something has gone wrong when you captured that vinyl to produce the loud fizzy noise at 9-10kHz.

Try the RIAA equalization curve ...
audacityteam wrote:If your computer only has a microphone input, this input may be mono or may itself add excessive amplification. If the recording distorts due to excessive volume, you could try setting phone/line on the turntable to phono, but the recording may then sound "tinny" and lacking in bass because RIAA equalization has not been applied. To correct lack of RIAA equalization after recording, open Effect > Filter Curve EQ or Effect > Graphic EQ and apply the "RIAA" curve to the recording.
https ://manual.audacityteam.org/man/troubleshooting_recording_with_usb_turntables_or_cassette_decks.html
Attachments
suggested spectrogram settings.png
suggested spectrogram settings.png (325.92 KiB) Viewed 330 times

Awareman
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Joined: Fri May 01, 2020 9:02 pm
Operating System: Windows 10

Re: Removing tiny 'cracks' from vinyl rips

Post by Awareman » Sat Sep 19, 2020 7:53 am

Hello. Thank you but actually I did not rip the vinyl myself. Someone has bought it for me and ripped it (I don't have a vinyl player/recorder myself). However, I checked some other versions of this track online and they all have these small parasites at the same place in the audio. It must be on the original recording. But that doesn't mean it can't be removed or that it should stay there. But it seems that it will stay there as I can't find a way to get rid of them, at least without damaging the song/sound.

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