Re: [LAU] Definition of "sound quality"

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To: Ralf Mardorf <ralf.mardorf@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Saturday, April 6, 2013 - 2:14 pm

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There's a couple things you're hinting at that can be explained with math
and one that can be explained psychologically:

Signals with compact support in the time domain have infinitely long
support in the frequency domain. When you color a sound with non-flat
frequency response, you lose the compactness of the original signal.
Muddiness comes about when the frequencies have different group delays or
when some frequencies are cut.

The best mix preserves the distinctness of each part. One of my favorite
articles is "Tone and Voice" by David Huron. The article makes it clear
that musical practice derives itself from balance and independence of its
parts (specifically as applied to voice leading but when applied more
generally it has some insights for engineering more modern music)

Chuck

On Apr 5, 2013 9:32 PM, "Ralf Mardorf" wrote:

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There's a couple things you're hinting at that can b=
e explained with math and one that can be explained psychologically:
Signals with compact support in the time domain have infinit=
ely long support in the frequency domain.=A0 When you color a sound with no=
n-flat frequency response, you lose the compactness of the original signal.=
=A0 Muddiness comes about when the frequencies have different group delays =
or when some frequencies are cut.

The best mix preserves the distinctness of each part.=A0 One=
of my favorite articles is "Tone and Voice" by David Huron.=A0 T=
he article makes it clear that musical practice derives itself from balance=
and independence of its parts (specifically as applied to voice leading bu=
t when applied more generally it has some insights for engineering more mod=
ern music)

Chuck
On Apr 5, 2013 9:32 PM, "Ralf Mardorf" <ralf.mardorf@alice-dsl.net> w=
rote:

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> hifi gear, it doesn't matter if it was recorded in a professional =
or in

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ecomes "muddy".
h less highs),
ght separate

> of the room, but they have accentuations by different frequency bands.=

> If a codec does remove frequencies, those instruments will be less goo=
d

highs
en
don't
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ng an

> about frequency issues and less good channel separation by the mix, I<=
br>

ser@lists.linuxaudio.org
://lists.linuxaudio.org/listinfo/linux-audio-user

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[LAU] ABX test invite, Peder Hedlund, (Wed Apr 3, 11:01 am)
Re: [LAU] ABX test invite, James Stone, (Fri Apr 5, 7:27 pm)
Re: [LAU] ABX test invite, Peder Hedlund, (Fri Apr 5, 11:24 pm)
Re: [LAU] ABX test invite, Ralf Mardorf, (Fri Apr 5, 9:48 pm)
Re: [LAU] ABX test invite, Ralf Mardorf, (Fri Apr 5, 9:43 pm)
Re: [LAU] ABX test invite, Fons Adriaensen, (Fri Apr 5, 10:50 pm)
Re: [LAU] ABX test invite, Ralf Mardorf, (Sat Apr 6, 12:44 am)
Re: [LAU] ABX test invite, Peder Hedlund, (Sat Apr 6, 1:03 am)
[LAU] Definition of "sound quality", Ralf Mardorf, (Sat Apr 6, 2:32 am)
Re: [LAU] Definition of "sound quality", Charles Z Henry, (Sat Apr 6, 2:14 pm)
Re: [LAU] Definition of "sound quality", Ralf Mardorf, (Sat Apr 6, 1:19 pm)
Re: [LAU] ABX test invite, Ralf Mardorf, (Sat Apr 6, 1:22 am)
Re: [LAU] ABX test invite, Peder Hedlund, (Wed Apr 3, 7:07 pm)
Re: [LAU] ABX test invite, Thomas Vecchione, (Fri Apr 5, 5:26 am)
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Re: [LAU] ABX test invite, Ralf Mardorf, (Fri Apr 5, 1:50 pm)
Re: [LAU] ABX test invite, Peder Hedlund, (Fri Apr 5, 2:57 pm)
Re: [LAU] ABX test invite, Ralf Mardorf, (Fri Apr 5, 6:11 pm)
Re: [LAU] ABX test invite, Felix Homann, (Sat Apr 6, 7:24 am)
Re: [LAU] ABX test invite, Ralf Mardorf, (Sat Apr 6, 8:53 am)
Re: [LAU] ABX test invite, Peder Hedlund, (Sat Apr 6, 12:01 pm)
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Re: [LAU] ABX test invite, Ralf Mardorf, (Sat Apr 6, 1:43 am)
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