Re: [LAD] Floating point processing and high dynamic range audio

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To: linux-audio-dev <linux-audio-dev@...>
Date: Thursday, July 22, 2010 - 1:16 am

Excerpts from fons's message of 2010-07-22 02:24:04 +0200:

I had a brief look at the section about loudness in musimathics and it
mentions 10 dB based on the work of Stevens, S.S. 1956,
"Calculation of the Loudness of Complex Noise" and 6 dB based on
Warren, R. M. 1970,
"Elimination of Biases in Loudness Judgments for Tones.".
I think I've encountered the 6 dB more often in texts, which doesn't
mean it's closer to the truth, if that's possible at all.
Knowing a 'correct' number would be nice for artists and sound
engineers, but if it varies wildly from person to person, as Gareth Loy
suggests (no idea where he bases this on) then this simply isn't
possible. Picking any number within or around this range is probably as
good as any other.

> I often wondered what criterion we use to determine which

I never thought about that to be honest. It's immensely complex. It
might have to do with each persons hearing capabilities, for example the
bandwidth of loudness perception or the smallest discernible loudness
difference. If it really is very different from person to person, then
an explanation that takes the different hearing capabilities into
account could be sensible, don't you think?

> > It may be nitpicking, but I found it important to differentiate

Good night :)
--
Regards,
Philipp

--
"Wir stehen selbst enttäuscht und sehn betroffen / Den Vorhang zu und alle Fragen offen." Bertolt Brecht, Der gute Mensch von Sezuan

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Messages in current thread:
Re: [LAD] Floating point processing and high dynamic range a..., Philipp Überbacher, (Wed Jul 21, 11:05 pm)
Re: [LAD] Floating point processing and high dynamic range a..., Philipp Überbacher, (Thu Jul 22, 1:16 am)
Re: [LAD] Floating point processing and high dynamic range a..., Philipp Überbacher, (Thu Jul 22, 10:32 am)
Re: [LAD] Floating point processing and high dynamic range a..., Jörn Nettingsmeier, (Wed Jul 21, 6:21 pm)
[LAD] Attenuation of sounds in 3D space, JohnLM, (Wed Jul 21, 7:06 pm)
Re: [LAD] Attenuation of sounds in 3D space, JohnLM, (Thu Jul 22, 10:20 am)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Wed Jul 21, 7:21 pm)
Re: [LAD] Attenuation of sounds in 3D space, Arnold Krille, (Wed Jul 21, 8:36 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Wed Jul 21, 8:58 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Wed Jul 21, 9:28 pm)
Re: [LAD] Attenuation of sounds in 3D space, Arnold Krille, (Wed Jul 21, 11:08 pm)
Re: [LAD] Attenuation of sounds in 3D space, Fernando Lopez-Lezcano, (Thu Jul 22, 2:58 am)
Re: [LAD] Attenuation of sounds in 3D space, Patrick Shirkey, (Thu Jul 22, 3:38 am)
Re: [LAD] Attenuation of sounds in 3D space, Paul Davis, (Thu Jul 22, 12:11 pm)
Re: [LAD] Attenuation of sounds in 3D space, Arnold Krille, (Thu Jul 22, 6:30 am)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Wed Jul 21, 9:18 pm)
Re: [LAD] Attenuation of sounds in 3D space, James Morris, (Thu Jul 22, 8:53 am)
Re: [LAD] Attenuation of sounds in 3D space, Arnold Krille, (Wed Jul 21, 11:04 pm)
Re: [LAD] Attenuation of sounds in 3D space, Florian Faber, (Fri Jul 23, 10:52 am)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 22, 12:01 pm)
Re: [LAD] Attenuation of sounds in 3D space, Fernando Lopez-Lezcano, (Thu Jul 22, 5:52 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 22, 6:23 pm)
Re: [LAD] Attenuation of sounds in 3D space, Fernando Lopez-Lezcano, (Thu Jul 22, 6:51 pm)
Re: [LAD] Attenuation of sounds in 3D space, Arnold Krille, (Thu Jul 22, 12:51 pm)
Re: [LAD] Attenuation of sounds in 3D space, Paul Davis, (Wed Jul 21, 9:10 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Wed Jul 21, 9:24 pm)
Re: [LAD] Attenuation of sounds in 3D space, Paul Davis, (Wed Jul 21, 9:45 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 22, 11:45 am)
Re: [LAD] Attenuation of sounds in 3D space, Paul Davis, (Thu Jul 22, 11:48 am)
Re: [LAD] Attenuation of sounds in 3D space, Chris Cannam, (Thu Jul 22, 2:29 pm)
Re: [LAD] Attenuation of sounds in 3D space, Arnold Krille, (Thu Jul 22, 2:45 pm)
Re: [LAD] Attenuation of sounds in 3D space, JohnLM, (Wed Jul 28, 7:46 pm)
Re: [LAD] Attenuation of sounds in 3D space, Arnold Krille, (Thu Jul 29, 1:58 am)
Re: [LAD] Attenuation of sounds in 3D space, JohnLM, (Thu Jul 29, 11:34 am)
Re: [LAD] Attenuation of sounds in 3D space, Jörn Nettingsmeier, (Thu Jul 29, 12:41 pm)
Re: [LAD] Attenuation of sounds in 3D space, Gene Heskett, (Thu Jul 29, 1:21 pm)
Re: [LAD] Attenuation of sounds in 3D space, JohnLM, (Thu Jul 29, 1:59 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 29, 2:25 pm)
Re: [LAD] Attenuation of sounds in 3D space, Gene Heskett, (Thu Jul 29, 3:06 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 29, 3:21 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 29, 2:14 pm)
Re: [LAD] Attenuation of sounds in 3D space, Fernando Lopez-Lezcano, (Thu Jul 29, 5:00 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 29, 5:32 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 29, 5:43 pm)
Re: [LAD] Attenuation of sounds in 3D space, Philipp Überbacher, (Thu Jul 29, 5:58 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 29, 5:28 pm)
Re: [LAD] Attenuation of sounds in 3D space, Lorenzo, (Thu Jul 29, 6:50 am)
Re: [LAD] Attenuation of sounds in 3D space, Paul Davis, (Thu Jul 22, 2:35 pm)
Re: [LAD] Attenuation of sounds in 3D space, Jörn Nettingsmeier, (Thu Jul 22, 10:40 pm)
Re: [LAD] Attenuation of sounds in 3D space, Gene Heskett, (Thu Jul 22, 6:15 pm)
Re: [LAD] Attenuation of sounds in 3D space, Jörn Nettingsmeier, (Thu Jul 22, 11:00 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Thu Jul 22, 6:43 pm)
Re: [LAD] Attenuation of sounds in 3D space, Jörn Nettingsmeier, (Thu Jul 22, 11:11 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Fri Jul 23, 6:51 am)
Re: [LAD] Attenuation of sounds in 3D space, Fernando Lopez-Lezcano, (Fri Jul 23, 5:03 pm)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Sat Jul 24, 8:45 am)
Re: [LAD] Attenuation of sounds in 3D space, Jörn Nettingsmeier, (Sat Jul 24, 9:20 am)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Fri Jul 23, 6:57 am)
Re: [LAD] Attenuation of sounds in 3D space, Folderol, (Wed Jul 21, 9:23 pm)
Re: [LAD] Attenuation of sounds in 3D space, Patrick Shirkey, (Thu Jul 22, 2:23 am)
Re: [LAD] Attenuation of sounds in 3D space, Ralf Mardorf, (Wed Jul 21, 9:30 pm)
Re: [LAD] Attenuation of sounds in 3D space, JohnLM, (Wed Jul 21, 8:35 pm)