Audio!! - deplop - what is it?

Caruso wrote on 3/20/2002, 3:54 AM

I was complaining to an associate the other day about the rumble I get from my belt drive turntable when I copy LP's for archival purposes. Of course, played through speakers at volume levels that don't prematurely retire your eardrums, the rumble is constrained to acceptable levels. When I listen to very soft music passages through a set of headphones, the rumble is quite annoying.

My friend recommended a Steinberg Declicker plugin and told me to use the deplop setting to eliminate the rumble.

What is deplop and how does it work? Is it appropriate for this use, and, whether yea or nea, is there an equivalent SF FX (perhaps, joy, joy, one that is already contained in my VV30 setup) that will accomplish the task?

Thanks in advance.

Caruso

Comments

ramallo wrote on 3/20/2002, 7:19 AM

Hello,

Sonic Foundry Noise Reduction 2

Waves Restoration bundle

Bye

mayberryman wrote on 3/20/2002, 7:27 AM

Noise Reduction 2.0 is available as a fully functional trial (7 days) plug-in for vv3. You can download from sf, and try it out for 7 days to see if it meets your needs.

Caruso wrote on 3/20/2002, 7:14 PM

Not sure if I should be grateful or insulted by these replies. I'm sure I don't see a response to my question about deplop.

Should I conclude that this SF package referenced is equivalent in function/quality (ok, superior even) to the deplop function about which I inquired? Or, shall I concede that the respondents to date are unfamiliar with this deplop thing?

Caruso

ramallo wrote on 3/20/2002, 8:29 PM

Hello,

What's happen with you?

I'm not sure if you are a ungrateful man, or you don't read your own post's:

>is there an equivalent SF FX

Mayberryman and myself wrote the correct reply to this question

I don't have the obligation to reply all your questions, I don't need that you doubt of my good purpose. And now, you are sure that if I know the reply, you never knows by me.

Bye

Chienworks wrote on 3/20/2002, 8:35 PM

ramallo: don't take it personally. caruso was pointing out that neither of you explained what deplop is. He wants to know what that effect/process is so he can tell if anything from Sonic Foundry will do the same thing. Since you folks recommended something, one might assume that you do know what deplop is, but didn't explain it. So i'll ask too: "Does anyone know what deplop is?"

Caruso wrote on 3/21/2002, 3:31 AM

Sorry, Ramallo. I was chuckling to myself when I typed the previous post. This BBS medium obviously "deplopped" my message of its lighthearted tone. In re-reading my own post, I can see how you may have taken offense . . . I assure you none was intended.

Now, then, to my question, if you will . . . deplop . . . what is it, what does it do?

Thanks to all.

Caruso

Cheesehole wrote on 3/21/2002, 12:31 PM

a "Deplop" slider which is, actually, a special high-pass filter that affects signals below 150 dB and will help control any noise that might appear after removing a click.

-----

found that by typing deplop into google in about 3 seconds.

ramallo wrote on 3/21/2002, 1:57 PM

Hello Caruso,

No problem, a little misunderstand trouble.

Thanks

Cheesehole have the reply, the needed of deplop is for correct the unexpected artifacts created by click reduction.

Bye

Caruso wrote on 3/22/2002, 3:45 AM

Cheese: 'found that by typing deplop into google in about 3 seconds.'

Now I really feel insulted. The only insult that's more punishing comes as a comment in the singing world and goes like this . . . 'his (her) voice is small, but it's ugly.'

Hope everyone understands that I'm just kidding here. Thanks for the tip. I checked out Google, and sure enough it came up (I could swear I had checked prieviously without results . . . maybe I mispelled (or made some other misteak))).

At any rate, the articles I found in my search were from 1999, and it sounds to me as though, either my friend is mistaken about what deplop will do, or it does more than what those 1999 articles say that it will do.

Perhaps I'll try Ramallo's suggestion and download the noise filter pack from SF.

Thanks to all for the replies.

Caruso

Caruso wrote on 3/25/2002, 4:16 AM

I downloaded the SF noise reduction package referenced and tried it out. I cannot justify the expense against the effect at this time and will probably go another route. Thanks for the info, however.

Caruso

ramallo wrote on 3/25/2002, 5:53 AM

Hello CAruso,

Try with the Waves Restoration.

www.waves.com

Download the 7 days demo, I like it.

An a few advices.

- Record and work with 24 bit files.

- In SF Noise Reduction use the mode 3 and no more than 12 dB of reducction, is better two pas of -12 dB than one of -24 dB.

- Use for the rumble the noise print of the main Noise reduction, take a part without music, analice the rumble and save this noise print, apply this setting to a part with music and make a fine ajust with "Keep residual output" for delimits better the noise and the music.

Good luck

BugHead wrote on 3/27/2002, 8:51 PM

Y'all are out of control.
If there's rumble that's low frequency info. Simply try the high pass filter in vegas. I don't remember the names but there is a parametric eq in SF that lets you choose a cut off frequency, like say 80 Hz. See what sounds good, remember you're throwing away all musical info below this point as well so maybe it only needs to be done to the soft passages where you notice it. Noise reduction can do all sorts of strange things if not done right, and its very time consuming in my experience - not that its not useful but not in this circumstance IMOHO.
I guess you can buy a plug in that will do this for you and call it vinyl restoration but you were asking originally if vegas can do similar and the answer is yes! I just got an upgrade of SF5 at work and it has declicker as a direct x plug in. I don't know if this is in vegas 2 or 3 (or what version you have) but using it in combination with a high pass filter will do a nice job in cleaning up your records. Someone also mentioned recording at 24 bit - this is very helpful - just remember to dither to 16 bits and save as 16 bits 44.1Hz stereo wav so it will burn smoothly.
I hope this is helpful!

Jesse

Caruso wrote on 3/28/2002, 5:23 AM

All the suggestions are very helpful and appreciated. When I have time, I try them all, and, yes, I do limit my "reumble elimination" (oops, that should have been rumble elimination, sorry) efforts to the quiet passages only, as it is only noticeable there. In loud sections, there is plenty of low frequency music content to mask it.

I've tried the SF Graphic EQ FX that has a preset to roll off frequencies below 120 Hz. In quiet passages, even that setting isn't sufficient. But, it is certainly easy enough to add a nodule to the envelop at around 80 hz and depress that to achieve the degree of elimination desired.

That works well enough for me that I can't, at this time, justify the cost of the Noise Reduction 2.0 package from SF. I set my system back via the XP System Restore to remove the demo package from my machine, although the download file is still there. I may load it up again and play with it some more, but, my feeling is that the improvement possible will probably not change my view that it's beyond my budget for now.

Apparently, the SF NR20 package is not new. It appears to be a couple of years old. I'm surprised I hadn't seen it before now, not that it matters, I guess.

Thanks again for the helpful responses.

Caruso