Hi Raimund--
I believe the differences in mic sensitivities are compensated for as
one matches the playback levels at a desired volume. I prefer this
application-specific means of comparison because it allows the end
user to use a volume she/he finds comfortable and playback volume
affects tonal balance and apparent noise level. It also allows each
of us to make the comparison using with our monitoring preferences
targeted for differing applications.
I don't know if Juan Carlos attempted a perceptual level match or
not, but his setting seems reasonably close to me without EQ.
I have a feeling that "rolling-off" the NT1-A under 40 Hz and
re-matching the levels will bring up the noise in the NT1-A. Many
folks practice more radical low-end attenuation than this,..
I recall that I often boost my NT1-A tracks about 5.5 dB in mixes to
match the output of my Sennhesier mics (rated at 25mV/Pa). The
frequency response of the NT1-A's and my Sennheiser mics is quite
different in the lower mid-range-- often a key range for ambience
recordings.
I prefer to do these tests with stereo pairs too because noise
character differences between the mics become more much of an issue
when recording quiet locations. Rob D.
=3D =3D =3D =3D
At 2:28 PM +0000 9/4/08, Raimund Specht wrote:
> > Hi Raimund--
>> I agree that weighting could be playing a role,
>> but there seems to be a lot of audible difference
>> to account for:
>> see:
>>
>><http://tech.groups.yahoo.com/group/naturerecordists/files/>http://tech.g=
roups.yahoo.com/group/naturerecordists/files/
>> LOG IN and scroll down to the file:
>>
>>
>> or
>>
>>
><http://tech.groups.yahoo.com/group/naturerecordists/files/MKH-60-vs-NT1-A=
>http://tech.groups.yahoo.com/group/naturerecordists/files/MKH=
>
>> if you are already logged in.
>>
>> Rob D.
>
>Hi Rob,
>
>Hmmm, as far as I understand, the two samples were recorded at the
>same gain settings (+68dB). However, the MKH 60 is more sensitive
>(40mV/Pa) than the NT1-A (25mV/Pa). So, one had to attenuate the MKH60
>sample by 4 dB in order to match the absolute sound levels.
>
>Raimund
>
>
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