Re: [LAU] Gain and clipping wav -> lame

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To: Marc Lavall??e <marc@...>
Cc: <linux-audio-user@...>
Date: Friday, July 26, 2013 - 10:35 pm

Thanks again. Things are looking much better now. I embraced the
concept of not being able to predict this. Turns out I have old
screwed up things that really benefitted from revisiting them and
cleaning them up.

Marc Lavall??e wrote on Thu, Jul 25, 2013 at 04:45:48PM -0400:

That works. Comes in the Debian ebumeter package, BTW.

But how do I translate the output to a required db or ratio
adjustment?

I have a file in front of me that was maxed out amplitude wise by
somebody else. According to lame I needed --scale 0.64 to get it not
to clip in lame (should be 3.9 db). Which, BTW was not the value it
first estimated that I would need.

ebur128 --lufs:
Integrated loudness: -4.9 LUFS
Loudness range: 5.5 LU
Integrated threshold: -13.0 LUFS
Range threshold: -25.0 LUFS
Range min: -8.6 LUFS
Range max: -3.1 LUFS
Momentary max: -1.2 LUFS
Short term max: -2.4 LUFS

I don't see that any of the value correspond with what lame needed to
not clip over a collection of different loudness clips. (means: some
clips that needed less --scale have higher numbers here and others
have lower)

I assume the ebumeter output is more for making things sound even
(between different pieces) and not directly a tool to max out
anything, is that right?

Martin
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Messages in current thread:
[LAU] Gain and clipping wav -&gt; lame, Martin Cracauer, (Thu Jul 25, 6:21 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Fons Adriaensen, (Thu Jul 25, 7:40 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Martin Cracauer, (Thu Jul 25, 8:14 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Fons Adriaensen, (Thu Jul 25, 9:44 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Ralf Mardorf, (Fri Jul 26, 4:29 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Will Godfrey, (Thu Jul 25, 9:09 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Marc , (Thu Jul 25, 8:46 pm)
Re: [LAU] Gain and clipping wav -> lame, Martin Cracauer, (Fri Jul 26, 10:35 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Marc , (Sun Jul 28, 4:45 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Fons Adriaensen, (Sun Jul 28, 11:27 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Jörn Nettingsmeier, (Sun Jul 28, 12:44 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Ralf Mardorf, (Sun Jul 28, 1:21 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Jörn Nettingsmeier, (Mon Jul 29, 1:29 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Ralf Mardorf, (Mon Jul 29, 6:00 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Marc , (Sun Jul 28, 2:21 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Edgar Aichinger, (Sun Jul 28, 12:00 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Ralf Mardorf, (Sun Jul 28, 12:21 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Ralf Mardorf, (Sun Jul 28, 11:47 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Fons Adriaensen, (Sat Jul 27, 9:18 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Martin Cracauer, (Mon Jul 29, 6:13 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Fons Adriaensen, (Mon Jul 29, 7:56 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Marc , (Sun Jul 28, 11:50 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Fons Adriaensen, (Mon Jul 29, 9:25 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Philipp , (Mon Jul 29, 9:45 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Fons Adriaensen, (Mon Jul 29, 10:13 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Philipp , (Mon Jul 29, 1:27 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Fons Adriaensen, (Mon Jul 29, 2:15 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Philipp , (Mon Jul 29, 4:22 pm)
Re: [LAU] Gain and clipping wav -&gt; lame, Jörn Nettingsmeier, (Mon Jul 29, 1:27 am)
Re: [LAU] Gain and clipping wav -&gt; lame, Philipp , (Sat Jul 27, 7:10 am)