Thanks Mark, for lending your ears. After listening a few more times,
I realize in the last segment I got the wires switched. No wonder I
couldn't find that raven up in the tree to my right, it was actually
somewhere to my left.
Also it should be noted the MZ-N707 is not Hi-MD, it records only in
Altrac-3, and does not offer digital upload to computer. I set the
volume levels at about half (at 15 I think). If only by chance, the
clock ticking in these recordings seemed to match the others fairly
well - so I went with it without any adjustments in post. Therefore,
the first segment and the sixth might not be matched up very well to
the others.
-John Hartog
In "Mark R." <> wrote:
> Hi John,
> On the first listen, I couldn't hear a big difference until the last
> recording. It seemed to get quieter and softer to my ears there, at
least
> until that crow said hello :^) On subsequent listens I discerned a
subtle
> and gradual addition of hiss/noise as the PB224 was taken out of the
> equation. Gradual enough that I missed it in my not so sound proof
pc cafe
> here in Korea. To me it sounds as if the PMD Rolls combination may
add only
> a slight bit of extra hiss/noise in contrast to the Rolls + MZ-707,
but I
> can't be positive. To me, this test shows consistency with Rob's test of
> NT1A's + PB224 =3D Clean.
> Kudos to you John for a fine test. I really like the clock for this
kind of
> listening. Contrary to popular belief, Rob really does have a good
idea once
> in a while :^o
> Best,
> Mark R.
> On 9/30/05, John Hartog <> wrote:
> >
> > So here are the results from the comparative tests I did last weekend
> > with the Rolls PB224 phantom power supply. What did I find? That
> > outdoors is not the place to get meaningful results, and it is likely
> > impossible to compare the noise from the equipment used in this
> > experiment because the wind, slight as it was, adds too much
> > inconsistency. But have a listen, maybe there is something of worth
> > to be taken from my efforts. Here are two of the same recording =96 one
> > wav (10.8MB) and one mp3 (0.96MB:
> >
> > http://www.rockscallop.org/test/jh-050925-rollstest.wav
> >
> > http://www.rockscallop.org/test/jh-050925-rollstest.mp3
> >
> > The recording consists of six 10 second snips from my six test
> > recordings. I used a ticking clock, kind of like Rob does in his
> > tests. I taped the clock to a small alder tree, kind of like I
> > imagine Rob might not do. For the first three recordings, the clock
> > is about eight feet away and somewhat to the left of the microphones.
> > In the second three, the clock is about three feet directly in front.
> > All the recordings were made with recorder settings at full gain.
> >
> > The equipment used follows this order:
> > 1. Rode NT1-A's > Rolls PB224 > Sony MZ-N707
> > 2. NT1-A's > PB224 > Marantz PMD670
> > 3. NT1-A's > PMD670
> > 4. NT1-A's > PMD670
> > 5. NT1-A's > PB224 > PMD670
> > 6. NT1-A's > PB224 > MZ-N707
> >
> > Your questions and comments are welcome.
> > -John Hartog
> >
> >
>
>
> [Non-text portions of this message have been removed]
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