Not Passing ACX Check Analyzer Issue #2

Narrating and Producing Audiobooks.

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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by Ted R Brown » Sun Feb 05, 2017 10:09 pm

It is as you said...I can't get above 0.5
I tried stereo...same results get above 0.5
I looked in the Device Manager for Audio inputs and outputs haven't found anything yet even by adjusting some gains.

Where do I go from here?

Ted
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Waves not taller than 0.5
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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by kozikowski » Mon Feb 06, 2017 1:35 am

Run through your sound channel again. Scarlett 2i2s come in first and second generation. There are two different Spark microphones.

When you're doing your woof test, do the lights on 2i2 knobs turn red? I think they're supposed to if the system is close to overloading.

I expect you to have two blue waves in Audacity if you're recording stereo and only one of them has your voice on it. The other should be flat. Is that what you have?

We could be dancing down the garden path with this, but overloading at 0.5 is a thing and it's different from something just running out of steam at some random loudness value. There are specific failures that cause damage at 0.5.

There is a desperation method. If you absolutely have to get a voice track out the door, you record it at -12 and -6 instead of -6 and 0. You record the whole thing low to avoid the distortion and them bump it up to normal volumes in post production. Everywhere we say "occasional peaks at -6", you record it with occasional peaks at -12. You have a well-behaved system and can probably get away with that even though it's not perfect. If there's somebody with the car running in the parking lot for your track, this does work.

Koz
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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by flynwill » Mon Feb 06, 2017 1:40 am

Does Audacity present you with an input volume adjustment? If so is it all the way up?

After that my next thought would be to look for drivers on the Focusrite site website.
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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by Ted R Brown » Mon Feb 06, 2017 5:43 pm

Koz...I know what the problem is...
When I started this audio book project, I changed to a new computer. This morning I hooked everything back up to the Old computer and Peaks would spike up to 0.dB no problems.

I have tried to match the system audio files from the Old computer to the New. Thus far, I don't see the difference. I'm going to join the never ending circle to contact the new computer Co. (Lenovo) Tech Dept. today. I trust they quickly know how to fix the problem LOL. (I'll raise my faith levels by the time I make the call.)

From a technical standpoint, what would be the best possible statement I could make that would pinpoint the problem to them?

MegaThanks for your direction. I'm contacting the Author, (who is extremely understanding) and if I can't resolve the issue with Lenovo, I'll start re-recording the 27 Chapters. The good news is, I love the book and the author and look forward to starting the project over if need be.
Ted
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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by kozikowski » Mon Feb 06, 2017 9:16 pm

I wouldn't bother with Lenovo. Chances are excellent this is not a computer problem, even though that's how it looks.

That and the split nature of the problems(s) makes this challenging.

Let's do "out the door" mode.

Let's say you're going to read on the old machine until you get the new one sorted. Read a 20-second forum test and post it. I'm betting with minimum fuss, we can make a processing suite and you're done.

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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by Ted R Brown » Mon Feb 06, 2017 10:32 pm

A 20-second forum test from the old machine. This file has already encoded. Are you wanting a file before encoding?

Ted
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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by kozikowski » Mon Feb 06, 2017 11:23 pm

Are you wanting a file before encoding?

Before you do anything to it. That's why this request usually has to be shot apart from other, older works.
You should post clean, unprocessed work. Don't adjust anything before Export. No filters, effects, adjustments, tuning or processing unless otherwise told.

That's a direct quote from this document.

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

We can't take processing out of a work, and having multiple people offering processing advice is just asking for trouble. That and MP3 conversion has been known to mess up the peak number. I built that possible error into the newer tools.

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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by kozikowski » Mon Feb 06, 2017 11:25 pm

This is where you get busted for a suspiciously quiet voice shoot. Remember several forum elves commended on that.

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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by Ted R Brown » Tue Feb 07, 2017 12:01 am

Ok...bust it! I'm ready. This was recorded with High Pass Filter.
Ted
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Re: Not Passing ACX Check Analyzer Issue #2

Permanent link to this post Posted by kozikowski » Tue Feb 07, 2017 12:29 am

This was recorded with High Pass Filter.

And it was recorded on the new computer. It has the 0.5 distortion and damage on the blue waves.

Screen Shot 2017-02-06 at 16.25.19.png
Screen Shot 2017-02-06 at 16.25.19.png (13.59 KiB) Viewed 491 times


We can't solve clipping distortion. Effect > Clip Fix is only good for very brief distortions and even then, it only guesses at the repair. It doesn't actually know how to fix the waves. We can't fix whole words that get damaged.

Record a new clip on the old computer so it doesn't have any distortion and post a WAV, not an MP3.

Start the recording, pause quietly for two seconds and then read something or talk for 18 seconds.

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

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