A few days ago, I got a rejection from ACX based on the noise floor of several of my files.
So I corrected the errors, cleared it through ACX and ensured everything passed.
But I got another rejection notice today, about the same errors.
So I go back to my mp3 tracks.
And files that had passed ACX check are now failing.
I am ex-military.
I know what its like when lives are at stake based on you following verbatim instructions.
I don’t mind telling you, this is messing with my head.
Louder than -60dB (smaller number) or quieter than -90dB. Loud background noise means your environment or system didn’t stop making noises when you stopped talking. That’s usually the (sssss) or (shshsh) back there. Also air conditioner or traffic noises.
You would think reducing noise to absolutely, total, dead quiet would be good, but they don’t like that so much either because normal microphones won’t do that. To get that, you would have had to mess with effects and filters and they really don’t like that.
Which one do you have?
And now the really good news. You can’t “fix” an MP3 file. MP3 gets its tiny, convenient sound files by messing with the tones in the show—and leaving some of them out. The process is permanent and recursive. If you patch an MP3, it leaves out some more.
You know that business of making a 192 Constant Quality MP3 for submission to ACX? If you patch or change your original submitted MP3, it’s not 192 any more.
This is where you go back to your Edit Master WAV chapters and patch it there, then make a whole new MP3. Also note ACX puts great stress on having your chapters match, so there is no piling effects onto one chapter and not others.
The main goal is to illustrate negative numbers. That’s also why I’m getting out of the habit of saying “Larger” or “Smaller” numbers.
Quick, subtract 3 dB from -18dB. I’ll wait.
It’s always “Louder” or “Quieter.”
Also “To Scale” doesn’t work because that puts -96dB over where you parked your car and you lose the graphic relationship between the numbers.
So, cartoon it is.
I picked a .png image file as being the most likely to work for everybody. And I can do it on my desktop without breathing hard.
I’ll probably post it on kozco.com along with “How to record an audiobook,” (so I don’t lose them again) and I’m not sure what I’m going to do there. “How to” is going to be the basic quick tutorial, only bristling with links.
Over in “How To,” I state that once you make the MP3 chapter for submission to ACX Audiobooks, you can’t change it. You can, but the explanation is awkward, confusing, and involves non-Audacity software.