At 5:32 PM +0000 6/17/07, Adam Welz wrote:
>Dear Rob
>During our conversation regarding cheaper
>recorders (copied below) you said the following:
>"Your Sennhieser ME 66 with K6 power module likely produces more
>
>self-noise than either the Hi-MD or
>Microtracker' s mic pres."Since I'm very new to
>this, I wonder if you could tell me if mic
>self-noise and recorder pre-amp noise are
>cumulative, or if a noisy mic will just cover up
>pre-amp noise?
Its cumulative and one can "cover up" the other
depending on the difference in level and the
sonic character of the noise sources. I have read
in a couple of places that if the two noise
sources differ by 10dBA, the noise from the
louder source one will effectively mask the noise
created by lower one. Likewise, if the
difference is less, you will hear a mix of the
noise from both sources.
>
>In other words, if the ME 66 with K6 is noisier
>than either the Sony Hi-MD or the MicroTrack,
>will it make any difference to the noise on the
>recording which one I use?
This would need to be tested to be sure, but I
would guess that it would be hard to hear the
difference in the recorders with that mic.
Sennheiser states the self-noise of their ME66
electret mic as 10 dB(A). I don't own the mic
but based on tests posted by list members where I
could compare its performance to other mics, I
found its self-noise performance to be closer to
Message: 16dBA.
Subject: The noise equivalent of the the Hi-MD
recorder pres seems to be in range of 10-12dBA
(based on a couple of tests done with mkh-40's
with 12dBA self noise and numerous tests with
NT1-A's with 6dBA self noise)=A0 Taking the figure
of 11dBA for the Hi-MD's mic pre and 16dBA for
the ME66, the mic's self noise would be around 5
dBA louder.
There might be someone on this list with the gear
necessary to run a comparison test. If you are
planning to use either recorder primarily with
this mic, I wouldn't let the Hi-MD's slightly
better noise performance be the determining
factor, especially as the ME66 has high output
and requires lower mic gain as a rule. Rob D.
>
>Best
>
>Adam
>
>
>9b.=A0
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> Re: Cheaper recorders cont.=A0=A0=A0=A0=A0
> =A0=A0
> Posted by: "Rob Danielson"=A0=A0=A0=A0=A0
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> danielson_rob
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> Mon Jun 4, 2007 3:29 pm (PST)=A0=A0=A0
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> =A0=A0
> At 7:48 PM +0000 6/4/07, Adam Welz wrote:
>
>
>
>re:
>
>>
>
>>I have read in other forums that the Edirol is noisier than the
>
>>MicroTrack, but I can't find any comparision of these two with the
>
>>MZ RH1 in terms of recorded sound quality.
>
>
>
>Your Sennhieser ME 66 with K6 power module likely produces more
>
>self-noise than either the Hi-MD or Microtracker' s mic pres.
>
>
>
>As Oryoki summarized. the RH-1 has the same mic pre chip/low-noise,
>
>high-gain quality as any of the Hi-MD recorders. Here is the NH-900
>
>Hi-MD compared to a Microtracker:
>
>http://www.uwm. edu/~type/ audio-art-
>tech-gallery/ pages/MicroTrack _NH900_722_
>IMA-QT-present. html
>
>
>
>You might note that the Hi-MD recorder has considerably more gain if
>
>you are recording subtle sounds
>
>
>
>On the Gallery page you will find a test comparing Hi-MD and the Zoom H4.
>
>http://www.uwm. edu/~type/ audio-art- tech-gallery/
>
>
>
>>
>
>>A few people have emailed me to tell me to stay away from MiniDisc
>
>>as the format is outdated. This, however is of no concern to me as I
>
>>will be transferring all recordings to CD or hard-drive in AIFF or
>
>>WAV format and not archiving anything on MiniDiscs or flashcards
>
>>themselves - they'll just be the interim storage medium.
>
>
>
>You might also want to consider how much you record and how often you
>
>can get to a computer for uploading CF cards. 20- 1GB Hi-MD
>
>(reusable) discs for $120 will hold 30 hours of 44K/16 material. The
>
>disks can also record 7 hours+ in Hi-SP mode if you need to do longer
>
>term site monitoring. Rob D.
>
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