naturerecordists
[Top] [All Lists]

1. Re: OLYMPUS LS-10 VS DAT RECORDINGS UPLOADED

Subject: 1. Re: OLYMPUS LS-10 VS DAT RECORDINGS UPLOADED
From: "Rob Danielson" danielson_audio
Date: Sun Jul 6, 2008 7:21 am ((PDT))
At 11:52 AM +1000 7/6/08, Vicki Powys wrote:
>All,
>
>Using an ME67 connected to my LS-10, I have done a bit more testing
>in the field (and indoors) of noise levels using high vs low
>sensitivity. For lyrebirds, I do seem to get a better result using
>low sensitivity at volume 10, instead of high sensitivity at volume
>2. There is much less FIZZ.
>
>But also, surprisingly, I seemed to get better results yesterday when
>recording Regent Honeyeaters (they have a soft melodious call), using
>low sensitivity at volume 10, then raising the levels to match what I
>had recorded at high sensitivity at volume 5. Again, much less FIZZ
>on low sens.

Did you confirm this with matched playback levels? If not, place the 
tests made with high and low sensitivity one after the other on 
different tracks in a time-line. Boost the playback volume of the low 
sensitivity one to match the playback level of the louder (high 
sensitivity) one. You should be able to hear the difference in the 
"fizz" noise level where the two files join.

>
>This seems to be a very complex issue! More testing needed!
>
>I haven't tried these tests with the WL-183s, but would suspect a
>similar result.

Perhaps. The WL-183's are fairly sensitive mics but not in the same 
ballpark with the ME-67.

>
>Re my binaural setup, and your comment Rob (see below), where do I
>find Aaron's DSM temple mount set up?

Aaron uses a  WHB/N  Windscreen 
http://www.sonicstudios.com/access.htm#whb I'm not sure if Leonard 
sells just the mount-windscreen or not but you can see how his design 
works in the pictures. Rob D.



>
>Vicki Powys
>Australia
>
>On 03/07/2008, at 12:31 AM, Raimund Specht wrote:
>
>>
>>  Rob Danielson wrote:
>>>
>>>  A metronome at 5 metres might be a pretty "hot" reference signal.
>>>  Its possible that the "Low Sensitivity" setting might not provide
>>>  sufficient gain for quieter sounds and environments. Its worth
>>>  further investigation, for sure.
>>>
>>>  Coincidentally, earlier today, I thought of Aaron's DSM temple mount
>>>  preference in relation to your WL-183 rig priorities. Rob D.
>>
>>  Yes, this is a relatively loud test signal. Though, I believe that
>>  this is an adequate model for a loudly singing Lyrebird.
>>
>>  For recording softer sounds, one should perhaps better use the HIGH
>>  MIC SENSE setting. The problem with the Lyrebird was obviously that
>>  the REC LEVEL was turned down to 2, which caused the higher overall
>>  noise level. In other words, it is not appropriate to attenuate the
>>  microphone signal and then amplify it again in the next stage.
>>
>>  Note that the MIC 2 input of the TASCAM DR-1 also provides a
>>  relatively low gain (input clipping level: -28 dBu), while its
>>  inherent noise floor (-115 dBu(A)) is still good enough for the
>>  K6/ME6x series.
>>
>>  Regards,
>>  Raimund
>>
>>
>>
>>
>>
>>
>>  ------------------------------------
>>
>>  "While a picture is worth a thousand words, a
>>  sound is worth a thousand pictures." R. Murray Schafer via Bernie
>>  Krause
>>  Yahoo! Groups Links
>>
>>
>>
>
>


-- 






<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU