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Re: LS10 vs. Edirol (was: "Suburban Soundscape"...)

Subject: Re: LS10 vs. Edirol (was: "Suburban Soundscape"...)
From: "Rob Danielson" danielson_audio
Date: Thu Mar 25, 2010 11:23 am ((PDT))
Hi Heather--
In the end, subjectivity is ALL that matters.
But, its a skill too, so having something to
compare it to really helps me!

Could very well be that the LS-10's input noise
which we have shown extends down 400Hz is
significantly masking what I term as the
"acoustical" range, 400-1900Hz. The phenomenon is
related to favorable impressions of "spatiality"
and "airyness" some felt SASS produced in a
comparison that Andrew and Paul shared and also
in the lower register self-noise from the D50's
internal mics-- if you followed either of these
recent discussions.  Noise this low creates a
soft "roar" covers up the space. Could also be
some the LS-10 mics, too. Rob D.

At 10:27 AM -0700 3/25/10, Heather Perkins wrote:
>This is anecdotal - I don't have tests, just "a feeling." BUT...
>
>I had an early model Edirol R-09, and liked it - but it finally=A0
>succumbed to my rough-and-tumble recording style. So I got an Olympus=A0
>LS-10... and although I agree that the Edirol isn't built as well=A0
>(hey, I busted mine!) I am missing something in my LS-10 recordings -=A0
>a sense of space, or "air."  I record at high sample rates, and try=A0
>all kinds of settings, but I still miss something in my recordings.
>
>This is subjective, mind you  - I have no scientific proof to back up=A0
>my claim. But if I could meld the design of the LS-10 with the sound=A0
>of the Edirol, I'd be happy.
>
>- H
>
>
>>
>>
>>  The LS-10 seems to have bass roll-off when recording via the mic=A0
>>  input as a default.
>>
>>  Leonard Lombardo of Sonic Studios mentions this in his review from=A0
>>  2008:
>>
>>  http://www.sonicstudios.com/ls10revw.htm
>>
>>  I've noticed the difference between it and the Edirol R09-HR (also,=A0
>>  the LS-10 has very low line-in sensitivity) and prefer to use the=A0
>>  Edirol, even though its build quality is nowhere near as good.
>>
>>  Ian
>>
>>  - -
>>
>>  London Sound Survey http://www.soundsurvey.org.uk
>>
>>  Supporting Deafness Research UK http://www.deafnessresearch.org.uk
>>
>>  --- In  "Mike Rooke" <> wrote:
>>  >
>>  > Ive found the LS10's low end response is'nt as good as the Sony=A0
>>  D50. Might be an idea to test them with another recorder? - For=A0
>>  sure the response of that particular capsule if its from the same=A0
>>  family Im using is well below 10 Hz.
>>  >
>>  > Nice to hear the examples.
>>  >
>>  > BR
>>  > Mike.
>>  >
>>  >
>>  >
>>  > --- In  "walunit" <walunit@> wrote:
>>  > >
>>  > > Hi folks,
>>  > >
>>  > > I received a set of Klas's new Telinga Clip-On omnis yesterday=A0
>>  and tried a few experiments and compared a couple of configurations=A0
>>  with my MKH M-S rig. Pardon the long post.
>>  > >
>>  > > First, I make no technical conclusions from these tests. I'm=A0
>>  posting in the hopes that this is useful to the more technically=A0
>>  inclined. Second, and on a more subjective note, these do not sound=A0
>>  like "little" mics to me. I am pretty amazed at the Telinga + LS-10=A0
>>  combo. I was seeking a reasonably priced, portable way to get into=A0
>>  a fresh perspective in my soundscape recordings. With these omnis I=A0
>>  can now start to experiment with various boundary techniques, etc.=A0
>>  They sound great to my ears! I plan to take both rigs to the ocean=A0
>>  next week and can share some more comparisons, etc., from that trip.
>>  > >
>>  > > 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=A0
>>  set "flat" except whatever intrinsic filtering they may contain.=A0
>>  The samples are all encoded to 256 kbps mp3 using Sound Forge 8.=A0
>>  Recordings were made north of Kirkland, WA, USA at around 7:00 am=A0
>>  on March 24, 2010.
>>  > >
>>  > > The suburban soundscape is dominated by the roar of a distant=A0
>>  highway as well as planes, etc. I hope these experiments are still=A0
>>  helpful in some way. I tried to get the gain structures close while=A0
>  > recording but ended up adding 7.0 dB of gain (in SF) to the 722+MKH=A0
>>  rig to make the background WHOOSH approximately match to my ears=A0
>>  (the metering on the LS-10 is not fantastic for this but I could=A0
>>  have done better with a better noise/reference source). The 722=A0
>>  gain was set to display +61.8dB of gain. This is higher than I=A0
>>  normally run the gain and likely into the range where the 722 gain=A0
>>  display seems less accurate. I used the 722's internal M-S decoder=A0
>>  with M-S set to the mid "*" position. The LS-10 gain was set to=A0
>>  approximately "1.5" on the control. The LS-10 mic sense was set to=A0
>>  "HIGH" and low cut was set to "OFF."
>>  > >
>>  > > In this first test I have the Telingas clipped to my Sennheiser=A0
>>  HD 280 Pro headphones. Here's a pic:
>>  > > http://mikewallmusic.com/MKHandTelingaOmnis/IMG_4207.jpg
>>  > >
>>  > > I guess Klas will need a different marketing model. The mics=A0
>>  are about 10 cm from my head and in a plane about 5 cm below the=A0
>>  top of my head. The elements are pointing away from my head. There=A0
>>  was very little thought regarding this choice of mic location! The=A0
>>  clips just happen to hold very securely to my headphones in this=A0
>>  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=A0
>>  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=A0
>>  this test: http://mikewallmusic.com/MKHandTelingaOmnis/IMG_4194.jpg
>>  > >
>>  > > For your amusement I intentionally walk around, plug in a=A0
>>  fountain, unplug 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=A0
>>  the tree. I left the gain unchanged so it is very quiet (I did not=A0
>>  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/LS100062_edit_built-in_mics.mp3
>>  > >
>>  > > For this final test I brought both rigs into my music room=A0
>>  which is fairly quiet. I pointed them the same direction at a stack=A0
>>  of foam bass traps. The 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=A0
>>  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=A0
>>  compared to the Telingas+LS-10. I recall a discussion about=A0
>>  intrinsic high-pass in the LS-10 and that may be a big part of the=A0
>>  difference. I have done no analysis beyond running SF's=A0
>>  "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
>Yahoo! Groups Links
>
>
>

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