Help with low RMS

Narrating and Producing Audiobooks.

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Re: Help with low RMS

Permanent link to this post Posted by steve » Sat Oct 21, 2017 12:43 pm

jefflive423 wrote:versus just chopping them off with a limiter

Not all limiters are equal.
The Audacity limiter is deceptively sophisticated, and by default it provides "soft knee" limiting with "lookahead", so it guarantees the maximum peak level, while compressing peaks quite gently (gently for a limiter). The "hard clipping" setting on the other hand, does "chop off" the peaks (brutally so). http://manual.audacityteam.org/man/limiter.html
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)
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Re: Help with low RMS

Permanent link to this post Posted by kozikowski » Sun Oct 22, 2017 12:08 am

After struggling with compressors and other audiobook processing for many, many forum posts, the mastering suite was found to hit the sweet (so to speak) spot of gently nudging your voice into compliance while:

a: Continuing to sound like you.
b: Producing corrections that ACX can't hear.

ACX's clear goal is listening fascinated to somebody over cups of tea while they tell you a story—not tell you a story over a bad cellphone. It's certainly possible to beat your voice with a club and force it into Technical Compliance, but the second step in ACX acceptance is Human Quality Control. The humans do not like audible corrections.

Background noise is hard and that was left to the second part of the suite. There is no push the button and it all works (except in an April First posting I wrote). You can present with a very good, special purpose microphone in a bad room, or any microphone in a quiet, echo-free room.

I produced a passable voice clip with the laptop built-in microphones—in my quiet third bedroom.

It is remotely possible to have a celebrity voice that will not make it through the correction suite, but it hasn't happened yet.

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Re: Help with low RMS

Permanent link to this post Posted by kozikowski » Sun Oct 22, 2017 12:13 am

Oh, yes. One more. You can't tune corrections chapter by chapter. ACX puts great stress on chapter to chapter matching.

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