Re: [LAU] maximum input level, or normalization and dc offset correction?

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To: Ricardus Vincente <wizardofgosz@...>
Cc: Linux Audio User <linux-audio-user@...>
Date: Friday, July 12, 2013 - 8:34 pm

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On Fri, Jul 12, 2013 at 9:20 PM, Ricardus Vincente
wrote:

would think it's not

Found it! I was thinking of a presentation I'd seen somewhere, where the
details of inter-sample peaks is properly explained: Slide 22 of Fons' EBU
loudness meter presentaton (given at LAC2011 Maynooth, by Jorn
Nettingsmeier):
http://lac.linuxaudio.org/2011/download/lm-pres.pdf

The wave is pretty much predictable: until a (strange) *double 1.0* value
sample appears. The D/A conversion goes crazy, a spike to value of approx
3, while the range should be -1 to 1.

The worse thing is, the longer this "predictable" part is, the *higher* the
spike gets.

> So in short, I tend not worry about it. :-)
Me neither! Posted this for the sake of completeness. -Harry

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On Fri, Jul 12, 2013 at 9:20 PM, Ricardus Vincente <wizardofgosz@gmail.com> wrote=
:> Further, if the D/A has sufficient headroom (modern good D/A shou=
ld) I would think it's not

#39;d seen somewhere, where the details of inter-sample peaks is properly e=
xplained: Slide 22 of Fons' EBU loudness meter presentaton (given at LA=
C2011 Maynooth, by Jorn Nettingsmeier):
http://lac.=
linuxaudio.org/2011/download/lm-pres.pdf
The wave is pretty much=
predictable: until a (strange) *double 1.0* value sample appears. The D/A =
conversion goes crazy, a spike to value of approx 3, while the range should=
be -1 to 1.
The worse thing is, the longer this "predictable" part is, th=
e *higher* the spike gets.> So in short, I tend not worry about =
it. =A0 :-)Me neither! Posted this for the sake of completeness. -Harry=

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Messages in current thread:
Re: [LAU] maximum input level, or normalization and dc offse..., Ricardus Vincente, (Fri Jul 12, 6:18 pm)
Re: [LAU] maximum input level, or normalization and dc offse..., Ricardus Vincente, (Fri Jul 12, 8:20 pm)
Re: [LAU] maximum input level, or normalization and dc offse..., Harry van Haaren, (Fri Jul 12, 8:34 pm)