Can't get both ACX pass and export sound

Oh my… am I in trouble. Ive been fiddling around with Audacity for over a week to try and record an audio book. I record, edit then make and apply these changes.

1-RMS -18

2-Limiter soft -3 no gain

3-Noisegate…the only way I can get a pass on ACX is to set noise gate all the way to the right.

Sounds great on play back.

I export to mps 192 and the mp3 is unlistenable, the gate is entirely too high, but if I bring the gate to the left, I get a no pass for ACX. The playback is like this " And then t--------------in the-----------course in-------------------------part of the--------------------------------by the---------------"

It has been a nightmare.

I found in the Audacity manual there is an automated mastering plug in. I click it and its just script, no ability to download anything, and the manual says “download it and then…”

Any help is appreciated.

Im just looking for an easy way to record a freegin sound file…it really shouldn’t be this difficult.
I have already quit 30 times…

Thank you

Noise is almost always a problem unless you have a soundproof studio. It’s the soundproofing (1) that separates a pro studio from a good home studio. Your equipment will also generate noise.

There may be something you can do with processing/noise reduction or you may have to solve the noise problem by making your environment more quiet (Some people turn-of their heating/air conditioner and unplug their refrigerator while recording, etc.) or you may need to find another recording location.

Or if you are getting hiss or whine from your hardware you may need different equipment.

A noise gate is rather “crude”. Often you can hear it cutting in-and-out and that can be more annoying than constant noise, and/or it can make the background too quiet and then ACX will reject you for over-processing.

Do you know the source of the noise?

What does the noise sound like (when turned-up)?

(1) I read a book by Geoff Emerick who was the engineer for most of The Beatles recordings and he built their studio at Apple Records. While he was building the studio there was a terrorist bombing a couple of doors down. He didn’t hear anything and when he came-out he was wondering what was going on with all of the firemen and police and they were surprised to see him come walking out like nothing was happening. He was very proud of his soundproofing!!!

Thank u for the response. I am an audiophile and have sound treatments in the room I am recording in. I dont hear any noise on playback within audacity. It sounds great. It is only ACX check that has the issue. The only way I can get a pass on ACX check is to have noise gate all the way to the right.

So, I dont hear any noise whatso ever on playback but once I export to mp3, it is un listenable.

So I decided to try and upload a tiny sample to ACX to see what happened, the errors are:
1-MP3 as WAV, don’t understand this. I exported as MP3.
2- RMS 32.1 too low.

I went back and adjust the RMS as high as it would go to test…Same exact error, RMS 32.1 Too Low. So my mac or Audacity or something is making adjustments during the export. No matter what I do, the export levels are the same.

I say to myself, “I can’t be the only one experiencing this, it must be everyone…so…” The whole process is so unreal. Why are things sooooooo difficult?

Any Ideas?

Thank you,

TD

You may be able to attach ~10 seconds of WAV to a post here …

or post on the free Audacity-approved audio-host “audio dot com” …

So this file was rejected on ACX as being too low. There are no noise cancelations on it.

Its not wav, since, I believe, ACX requires MP3

It only fails because the noise-floor is about 13dB too high …

only fails beacuse noise floor is about 13dB too high

You should leave about a second of “silence” at the start.
[Silence meaning no talking or nor breathing or clothes rustling].

Your inhalation at the start gives away that some noise processing is going on. It may occur via “audio enhancements” before the sound reaches Audacity.

now it passes

Thank you @Trebor
Interestingly enough, I just acquired a pass a few minutes ago using:
-3, -18, and -62.8…just by chance.

I appreciate it, thanks again

Crap, it didn’t work on the Audacity ACX test…will it eventually get kicked from the ACX?

I eventually got it to pass and uploaded on to ACX and it sounded like crap. I’m back to square 1. Its all over the place.

There’s definitely some sort of noise reduction on the example you posted … Can't get both ACX pass and export sound - #6 by TonyDennison

I don’t know where noise reduction could be hiding on a Mac, (I don’t speak Mac).

Noise reduction / noise gate can make the noise-floor inconsistent, that could be responsible for your inconsistent reports from ACX uploads.

@Trebor so, what do you think, would an audio interface fix that? Probably not since it would still have to go through the mac.

Wouldnt the contributors to Audacity know this and atleast mention it?

If there any mac users on this forum that might shed light, please do.

Thanks

I agree: changing the audio interface is not going to get around the “audio enhancements”.

https://manual.audacityteam.org/man/faq_recording_troubleshooting.html

Thanks @Trebor Ill try that tonite.

Maybe it’s not a Mac thing. If you roll down to the bottom of your desktop, do you have a list of applications with dots or lights or something indicating which are running?

Screen Shot 2023-06-19 at 11.45.49 AM

Do you show Zoom, Skype, Meetings, or other communications or chat programs? That’s dangerous because even if they’re not actually running, they can leave setups and tools in place that can affect your work. These tools are designed to work no matter what you want, so they’re pretty nasty in the wrong environment.

Restart your Mac and make sure none of them start up by themselves.

ACX-Check is a Nyquist Program. It’s a Plugin. It’s full name is ACX-Check.ny. It’s installed in Audacity with Effects > Add/Remove Plugins.

Audiobook-Mastering-Macro is a plain, ordinary, sloppy text file. It’s full name is Audiobook-Mastering-Macro.txt. Many computers elect to hide the filename extension (.txt) to make this process as confusing and painful as possible. You can tell both Macs and Windows to stop hiding filename extensions and that’s a desirable thing to do—especially in troubleshooting.

You can open up Audiobook-Mastering-Macro.txt in any text editor and it will show you the characters in the file. Like this.

Audiobook-Mastering-Macro

That’s a little like trying to drink from a firehose, so you can drag your text window wider and wider, so it eventually settles down to the actual instructions.

Should you actually read that, it will consist of four sentences. The comment and introduction is where you find that I wrote/edited a lot of it. Then a rumble filter which automatically removes low pitch trash such as thunder, earthquakes, trucks driving by, and home microphone errors.

Then comes the loudness setting which puts the average loudness of your piece in the middle between the upper and lower ACX audiobook limits.

Then comes a soft, squishy, gentle peak limiter to keep the instantaneous sound tips and peaks from being louder than the ACX -3dB limit. Note that it doesn’t set for -3dB, but -3.5dB to make up for MP3 conversion errors.

You install this in Audacity > Tools > Macros > Import.

Audiobook-Mastering-Macro guarantees ACX RMS (loudness) and Peak conformance and if you recorded in a quiet, echo-free room, you may be all set.

Less obvious talents are the inability to hear it working and the ability to apply it more than once. If the tools aren’t needed, they don’t do anything. The rumble filter does affect progressively, but it’s really hard to hear it working.

We can split up your problems into sections by recording and forum-posting a sound test.

https://www.kozco.com/tech/audacity/TestClip/Record_A_Clip.html

Read down the blue links. They’re pretty short.

Koz

Thanks.

“You install this in Audacity > Tools > Macros > Import.”

How exactly do I install this in the plugins?

Copy and paste the text? Where?

Sorry Im pretty low tech.

Macro Manager is in the Tools menu …
https://manual.audacityteam.org/man/macros.html#manage

NB: No Audacity macro can turn-off unwanted audio-enhancements,
as they are outside Audacity.

S’OK. I go full steam until somebody stops me.

Can you give a few words about “freegin?” I’ve never heard of that. Do they require the same files and process as ACX/Amazon?

Koz

http://www.kozco.com/tech/audacity/Documents/Audiobook-Mastering-Macro.txt

Here is a copy of Audiobook-Mastering-Macro.txt from my archives. Right-Click or Control+Click > Save Link As.

Screen Shot 2023-06-20 at 11.51.10 AM

That will give you a copy of the file on your desktop (or wherever you wish to save it).
Open Audacity. Tools > Macros > Import. It should give you a navigation menu. Find Audiobook-Mastering-Macro.txt and click on it.

Audiobook-Mastering-Macro should appear in the left-hand Macro listing. Close the window.

Open a test reading. Make sure you have a WAV archive safety copy of the reading.

Select the reading with the SELECT button on the left. Tools > Apply Macro > Audiobook-Mastering-Macro.

There is no “OK.” It just does it. You should see your show blue waves on the timeline change sizes.

Youalready have ACX-Check, right?

Koz

ACX-Check.ny is an actual Nyquist type computer program.

Audiobook-Mastering-Macro.txt is a Macro also called a “Batch” which is just a list of instructions to tell other programs what to do.