Clipping after RMS Normalization

Narrating and Producing Audiobooks.
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Vanellope
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Operating System: OS X 10.11 El Capitan or later (macOS)

Clipping after RMS Normalization

Post by Vanellope » Mon Sep 10, 2018 7:04 pm

I'm having trouble getting the levels right on my recording. I went through the standard editing levels for ACX submission, and while the ACX Check says that it meets the standards, it sounds like it's clipping. At first I thought I was too close to the mic, but I tried this recording about an arms length away from the microphone and I still have the same problem. Can someone please give me some advice? This is on a Yeti Mic, and I'm using a pop filter. I originally got the Yeti Pro, but then I found out that the reason nothing was going right was because Yeti Pros don't like Macs.

Also, I had to put the Noise Reduction to 18, 6, 6 to get rid of the whine/mosquito noise. Is it making my voice sound "attuned" for lack of a better term? And would getting a usb hub eliminate the whine? I would really appreciate any help anyone could give me. I've been troubleshooting for almost two weeks now, and I'm getting pretty discouraged.
Sample.mp3
(471.08 KiB) Downloaded 7 times

Vanellope
Posts: 10
Joined: Mon Sep 10, 2018 6:22 pm
Operating System: OS X 10.11 El Capitan or later (macOS)

Re: Clipping after RMS Normalization

Post by Vanellope » Mon Sep 10, 2018 7:31 pm

Sorry for the double post, but I was trying to ask if it made my voice "auto-tuned," not "attuned." Autocorrect strikes again.

kozikowski
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Re: Clipping after RMS Normalization

Post by kozikowski » Mon Sep 10, 2018 7:47 pm

I'm getting pretty discouraged.
Stop doing that.

It's easy to go off the rails with this process. It is almost without question like nothing you've ever seen before.

Last first. Frying mosquitoes doesn't respond well to Noise Reduction. 18dB of reduction is guaranteed to cause tonal sound damage—talking into a milk jug. There is a special tool for that noise.

This is also where you find out it's a terrifically good idea to File > Export WAV copies of all your original, raw, uncorrected, performances. We can't take corrections out of a sound file and if anything goes seriously wrong in editing, you get to read it all over again—unless you kept the WAV copies. Then just open up the clean WAV version and keep going.



Mosquito-Killer4.ny
(360 Bytes) Downloaded 9 times

You have to install it into the Audacity plugins folder.

https://manual.audacityteam.org/man/ins ... _os_x.html

This is the tool designed to deal with that whine noise. It defaults to "8" mosquitoes and that almost always does it.
Yeti Pros don't like Macs.
That's good to know. It's almost 100% certain Yeti Pros don't have Frying Mosquitoes.

As we go. I need to leave the house for a while.
Clipping after RMS Normalization
Did you follow Audiobook Mastering 4? The suite of tools doesn't have that problem.

viewtopic.php?f=64&t=96103

I gotta go.

Koz

Vanellope
Posts: 10
Joined: Mon Sep 10, 2018 6:22 pm
Operating System: OS X 10.11 El Capitan or later (macOS)

Re: Clipping after RMS Normalization

Post by Vanellope » Mon Sep 10, 2018 8:22 pm

kozikowski wrote:
Mon Sep 10, 2018 7:47 pm
I'm getting pretty discouraged.
Stop doing that.

It's easy to go off the rails with this process. It is almost without question like nothing you've ever seen before.

Last first. Frying mosquitoes doesn't respond well to Noise Reduction. 18dB of reduction is guaranteed to cause tonal sound damage—talking into a milk jug. There is a special tool for that noise.

This is also where you find out it's a terrifically good idea to File > Export WAV copies of all your original, raw, uncorrected, performances. We can't take corrections out of a sound file and if anything goes seriously wrong in editing, you get to read it all over again—unless you kept the WAV copies. Then just open up the clean WAV version and keep going.



Mosquito-Killer4.ny

You have to install it into the Audacity plugins folder.

https://manual.audacityteam.org/man/ins ... _os_x.html

This is the tool designed to deal with that whine noise. It defaults to "8" mosquitoes and that almost always does it.
Yeti Pros don't like Macs.
That's good to know. It's almost 100% certain Yeti Pros don't have Frying Mosquitoes.

As we go. I need to leave the house for a while.
Clipping after RMS Normalization
Did you follow Audiobook Mastering 4? The suite of tools doesn't have that problem.

viewtopic.php?f=64&t=96103

I gotta go.

Koz
Thank you so much for replying! I did following the Mastering 4 when I was editing that clip. Even with that sequence together, it still had this strange clipping sound. Sorry about not uploading the unedited file--I didn't realize that would be helpful. I have the unedited file here along with the sample with only the Audiobook Mastering 4 effects added (so no additional noise reduction). The files were too large to attach so I uploaded them to soundcloud.

Unedited
https://soundcloud.com/user-362642955-9 ... e-unedited

Audiobook Mastering 4 sequence
https://soundcloud.com/user-362642955-9 ... ing-4-only

My Yeti Pro didn't have mosquitos, but it had static. I have this same excerpt recorded on the Pro if you want to take a look. The original unedited clip is practically inaudible, but if I turn the gain up any louder then the noise floor is too high for ACX standards. I attached the unedited and the edited with only the Audiobook Mastering 4 steps.

Pro Unedited
https://soundcloud.com/user-362642955-9 ... o-unedited

Pro Mastering 4 sequence
https://soundcloud.com/user-362642955-9 ... ing-4-only

I can't tell you how much I appreciate your help. I am so, so grateful. Thank you!!!

kozikowski
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Re: Clipping after RMS Normalization

Post by kozikowski » Mon Sep 10, 2018 9:53 pm

There is the boilerplate note that we're doing this from possibly multiple time zones away and we can't see what you're doing. So there's nothing fast about this forum thing.

We occasionally get posts about helping someone meet deadlines. Probably not.

The forum has a highly restricted file size limit. You can post a WAV sound file WAV (Microsoft) 16-bit, 44100 Mono about 20 seconds and stereo (two blue waves) 10 seconds.

I wrote a simple format for submitting voice tests.

http://www.kozco.com/tech/audacity/Test ... _Clip.html
still had this strange clipping sound.
I'll need to critically listen to your posts. You beat us to the gate. You already have a SoundCloud account. The only caution with those accounts is make sure they're "open," and don't require a license or registration to download.

I can't listen right this second, but you might get distortion like this if you select anything but Soft Limit setting under Effect > Limiter. Your limiter panel should look like this.


Screen Shot 2018-09-10 at 14.47.56.png
Screen Shot 2018-09-10 at 14.47.56.png (40.17 KiB) Viewed 230 times

Mastering Suite 4 uses an odd Audacity property that it's almost impossible to permanently overload, clip, and distort while you're editing. That means you can start with vocal floor sweepings and nearly pass ACX. It may not sound very good, but RMS (loudness) and Peak will pass.


I'm fascinated about this Yeti-Pro thing.

As we go.

Koz

kozikowski
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Re: Clipping after RMS Normalization

Post by kozikowski » Mon Sep 10, 2018 10:05 pm

I see SoundCloud Sign-In, Create an Account, and Upload. No Download and it does it on two different browsers.

Koz

Vanellope
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Re: Clipping after RMS Normalization

Post by Vanellope » Tue Sep 11, 2018 12:31 am

Sorry, it should allow downloads now. I thought I had ticked the box earlier. All of the links should allow downloads now, and this is the audio with the Audiobook Mastering 4, Mosquito killer, and 6,6,6 noise reduction. It's still causing the peaking issues. Thank you again for all of your help!

https://soundcloud.com/user-362642955-9 ... e-mosquito

kozikowski
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Re: Clipping after RMS Normalization

Post by kozikowski » Tue Sep 11, 2018 3:32 am

I couldn't find any harsh, clipping issues just listening live. I copied a "data grab" of the first clip, no processing, and I think you have a room honk.

This clip has had a "honk filter" applied starting at about 5 seconds. I guessed which voice tones are causing troubles. This is where good quality headphones or speakers come in. Everything past about five seconds should sound more natural and open (on your good quality speakers or headphones). See what you think.

ElizabethanPlay-HonkFilter.wav
(1.1 MiB) Downloaded 7 times

That's almost always some shortcoming in your studio.

I'll catch up with the fresh download shortly.

Koz

kozikowski
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Re: Clipping after RMS Normalization

Post by kozikowski » Tue Sep 11, 2018 3:53 am

More > Download, after refreshing the site, sends me here:

Screen Shot 2018-09-10 at 20.36.32.png
Screen Shot 2018-09-10 at 20.36.32.png (41.92 KiB) Viewed 215 times

Nobody here is doing that.

We're not all that interested in the post production sample, anyway for two reasons: We can't take effects out, so the best we can do is sit back and say "yup, it's broke all right." And then Full Stop. If you send the raw read, I'm going to process it normally and see if I can break it. If I can, then there's something funny in the read and I'll figure it out. If I can't, it may be your high quality speakers or headphones and the clip is actually fine.

And #2. The clips I've seen so far have no Room Tone (background silence). ACX the company, and ACX Check the program both require at least a second of hold your breath and stop moving. The specs in test reading say two seconds.


Screen Shot 2018-09-10 at 20.48.22.png
Screen Shot 2018-09-10 at 20.48.22.png (36.86 KiB) Viewed 215 times

That's one of the explanation panels from here.

http://www.kozco.com/tech/audacity/Test ... _Clip.html

If you hit 20 seconds mono (one blue wave), you can post directly on the forum. You don't need Sound Cloud.

Koz

Vanellope
Posts: 10
Joined: Mon Sep 10, 2018 6:22 pm
Operating System: OS X 10.11 El Capitan or later (macOS)

Re: Clipping after RMS Normalization

Post by Vanellope » Tue Sep 11, 2018 4:04 am

I'm so sorry I've been giving you the wrong stuff! Here's the raw clip. Sorry, I assumed since the problem occurred after I put it through the Audiobook Mastering 4 sequence, that was what you needed to hear. Thank you so much for putting up with my mistakes!

And I promise I tried google before asking, but would you mind telling me what a room honk is? Google couldn't tell me what it was or how to get the filter to fix it. Sorry for my newbie questions, and thank you again!
Raw sample.wav
(1.64 MiB) Downloaded 7 times

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