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-- Ripping vinyls: editing the pops out
Ripping vinyls: editing the pops out
So, I'm working on making a good rip from my vinyls to mp3/wav. I've cleaned the vinyls with a special brush and some fluid a couple of times and I do notice the difference. However, I still hear some small pops which really annoy me. I use Audacity to rip it and after some small research I've discovered the 'Click removal' under Effect. This helps sometimes, but not always. So how did some of you, other Audacity users, solve this problem?
http://www.tranceaddict.com/forums/...threadid=342250
hope this thread helps.
A bit, thanks 
But I was secretly hoping someone could tell me how to fix it on Audacity hehe ^^
How does the click removal thing in Audacity work? Automatically?
What I did with my vinyl rips is find the exact place where it pops, then use the interpolate function on the pop part. Makes the waveform nice and straight from there and usually you couldn't tell a difference from the original recording without a pop. Dunno if Audacity has that as I don't like using it because I think it's a bit wank (especially on OS X as most people with OS X are prepared to pay for something better, like they did with their macs, so it apparently hasn't got many OS X developers).
Anyway, this is what i've done to fix most pops. It takes quite a while, depending on the track and the amount and quality of the pops and skips. Also on some tunes i've replaced the popping part from the other channel (if the skip is only on one channel) and i've also replaced a section with the pop with a similar section from somewhere else (this is tedious though, but can be done). Usually the most time goes to finding where exactly the pop is as it might be difficult to see if it's a busy part of the track and the pop isn't very loud.
You have select the part of the track, then hit Click removal.. sometimes you need to experience a bit with the settings, depending on soft the click is. I'm pretty new with all this, but it has removed a click or two, but with less hard clicks it doesn't seem to work all the time even after I changed my settings.
Sorry for my n00bness, but what do you mean by interpolate function?
edit: I see that Audacity's click removal also is about this interpolating thing. "Click Removal (under the Effect Menu) is designed to remove individual clicks on audio tracks and is especially suited to declicking recordings made from vinyl records, without damaging the rest of the audio. The tool works by looking for short, abrupt discontinuities (known as "spikes") in the waveform, typical of those produced by a click on a record. Click Removal then interpolates the samples either side of the click to reconstruct the waveform."
And what program do you use?
I use Sound Studio. It's a pretty simple wave editor for OS X, but it's really intuitive and easy to use. The interpolate function basically makes the selected part of the waveform straight, keeping the angle of the wave though. I do not know the details of what really happens there as I'm no expert either, but it's definitely different from just silencing the selection. I'm sure you'll find more info on this by googling. But I'd think the Audacity click removal tool does some kind of an interpolation. I have no idea how much control over what it does you have and if you can show it where the pop actually is, or if it just won't fix it if it can't detect it. Dunno, I can't really be of any more help atm as I haven't got my computer here atm (being serviced cuz the dvd drive broke), nor do i have any audio with pops in it atm.
Well, I can select a very small part of the track, just where you can see a spike and a bit around it. Probably it's too small to be detected by Audacity then..
for example this one (bigger version here)
You can hear how it sounds here
It's a bit noisy in the beginning and the spikes that I marked is the pop you can hear at 0.09. I can't even see the noisiness in the beginning displayed, so I've got no clue how to fix it 
Just checked the clip with Audacity 1.2.6. on this Windows machine. And apparently there's no proper interpolate function on Audacity 1.2.6.
So I suggest you upgrade to 1.3.8 (beta) and try the repair function. This is the exact same thing I was talking about, at least I think so based on this site:
http://audacity.sourceforge.net/dow...tures-1.3-j.php
Zoom in really tight on the pop and select only the part of the waveform that is not right and hit the repair button and magic should happen.
The rip sounds really bad in the start though. Either your vinyl is really dirty or worn out due to cueing as the needle seems to be fine as it doesn't sound that bad later on.
Thanks, I will try the upgrade
I bought the vinyl second handed, I've already cleaned it a couple of times so I doubt that it's still dirty. Probably it's worn out like you said. Is there any way to fix that or is it a lost case?
Also, while searching for threads on this topic, I saw that you had bought a super professional cleaning device for your vinyls. If I remember correctly, kind of with a mini vacuum cleaner (haha). Do you still need to do a lot of editing even with that?
| quote: |
| Originally posted by Unique2701 Thanks, I will try the upgrade I bought the vinyl second handed, I've already cleaned it a couple of times so I doubt that it's still dirty. Probably it's worn out like you said. Is there any way to fix that or is it a lost case? Also, while searching for threads on this topic, I saw that you had bought a super professional cleaning device for your vinyls. If I remember correctly, kind of with a mini vacuum cleaner (haha). Do you still need to do a lot of editing even with that? |
The editing I have to do really depends on the vinyl in question as some pops just don't come off with the cleaner and I'm a bit of a perfectionist, so I've edited some rips for hours to get even the smallest pops out. 
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