Ive found the LS10's low end response is'nt as good as the Sony D50. Might =
be an idea to test them with another recorder? - For sure the response of t=
hat particular capsule if its from the same family Im using is well below 1=
0 Hz.
Nice to hear the examples.
BR
Mike.
--- In "walunit" <> wrote:
>
> Hi folks,
>
> I received a set of Klas's new Telinga Clip-On omnis yesterday and tried =
a few experiments and compared a couple of configurations with my MKH M-S r=
ig. Pardon the long post.
>
> First, I make no technical conclusions from these tests. I'm posting in t=
he hopes that this is useful to the more technically inclined. Second, and =
on a more subjective note, these do not sound like "little" mics to me. I a=
m pretty amazed at the Telinga + LS-10 combo. I was seeking a reasonably pr=
iced, portable way to get into a fresh perspective in my soundscape recordi=
ngs. With these omnis I can now start to experiment with various boundary t=
echniques, etc. They sound great to my ears! I plan to take both rigs to t=
he ocean next week and can share some more comparisons, etc., from that tri=
p.
>
> Notes:
> The two setups are:
> 1) Olympus LS-10 + Telinga Clip-Ons
> 2) SD 722 + Sennheiser MKH 30/40 M-S mic setup
>
> All files were recorded 44.1 kHz and 24-bit. Both systems were set "flat"=
except whatever intrinsic filtering they may contain. The samples are all =
encoded to 256 kbps mp3 using Sound Forge 8. Recordings were made north of =
Kirkland, WA, USA at around 7:00 am on March 24, 2010.
>
> The suburban soundscape is dominated by the roar of a distant highway as =
well as planes, etc. I hope these experiments are still helpful in some way=
. I tried to get the gain structures close while recording but ended up add=
ing 7.0 dB of gain (in SF) to the 722+MKH rig to make the background WHOOSH=
approximately match to my ears (the metering on the LS-10 is not fantastic=
for this but I could have done better with a better noise/reference source=
). The 722 gain was set to display +61.8dB of gain. This is higher than I n=
ormally run the gain and likely into the range where the 722 gain display s=
eems less accurate. I used the 722's internal M-S decoder with M-S set to t=
he mid "*" position. The LS-10 gain was set to approximately "1.5" on the c=
ontrol. The LS-10 mic sense was set to "HIGH" and low cut was set to "OFF."
>
> In this first test I have the Telingas clipped to my Sennheiser HD 280 Pr=
o headphones. Here's a pic:
> http://mikewallmusic.com/MKHandTelingaOmnis/IMG_4207.jpg
>
> I guess Klas will need a different marketing model. The mics are about 10=
cm from my head and in a plane about 5 cm below the top of my head. The el=
ements are pointing away from my head. There was very little thought regard=
ing this choice of mic location! The clips just happen to hold very securel=
y to my headphones in this position.
> Audio:
> Telingas: http://mikewallmusic.com/MKHandTelingaOmnis/LS100059_edit.mp3
> MKH: http://mikewallmusic.com/MKHandTelingaOmnis/T158_edit+7dB.mp3
>
> In this test I strapped the Telingas to a tree. Here are some pics:
> http://mikewallmusic.com/MKHandTelingaOmnis/IMG_4189.jpg
> http://mikewallmusic.com/MKHandTelingaOmnis/IMG_4191.jpg
> From the rear, for perspective. Yes, I am aimed at the house in this test=
: http://mikewallmusic.com/MKHandTelingaOmnis/IMG_4194.jpg
>
> For your amusement I intentionally walk around, plug in a fountain, unplu=
g the fountain, and walk a bit more. Audio:
> Telingas: http://mikewallmusic.com/MKHandTelingaOmnis/LS100060_edit_tree.=
mp3
> MKH: http://mikewallmusic.com/MKHandTelingaOmnis/T159_edit+7dB.mp3
>
> For this clip I unplugged the Teingas and strapped the LS-10 to the tree.=
I left the gain unchanged so it is very quiet (I did not correct the gain =
in SF).
> Here's a pic: http://mikewallmusic.com/MKHandTelingaOmnis/IMG_4195.jpg
> LS-10 built-in mics audio: http://mikewallmusic.com/MKHandTelingaOmnis/LS=
100062_edit_built-in_mics.mp3
>
> For this final test I brought both rigs into my music room which is fairl=
y quiet. I pointed them the same direction at a stack of foam bass traps. T=
he gain was left unchanged:
> Telingas: http://mikewallmusic.com/MKHandTelingaOmnis/LS100063_edit_quiet=
.mp3
> MKH: http://mikewallmusic.com/MKHandTelingaOmnis/T160_edit_quiet.mp3
>
> I was surprised by the very high level of "rumble" from the MKH rig so I =
made sure the heater was off and recorded a bit more "quiet:"
> http://mikewallmusic.com/MKHandTelingaOmnis/T161_edit_quiet2+7.mp3
>
> The RMS is ~3.5 dB lower this time, but still lots of rumble compared to =
the Telingas+LS-10. I recall a discussion about intrinsic high-pass in the =
LS-10 and that may be a big part of the difference. I have done no analysis=
beyond running SF's "statistics" tool.
>
> I hope this was of some interest.
> Best Regards,
> Mike
>
"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause
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