Hi David,
interesting to hear that, i planned to make a similar topic, and i
will, with some sound examples, because i really want to know if this
is normal...
i also use a mkh30/40 combination, but with the sound devices 702.
and i often record VERY subtle sounds.
and i always have a Hiss on my recordings. Sometimes i also record
room tones, which is recording a silent room.
then you definitly hear this hiss. seems to be a sennheiser issue,
NOT a preamp issue, as i had this with different mkh mics and with
different mic pre amps.
or i just was unlucky all the time and had broken mkh mics, bought
new but broken mkh mics, or i=B4m making something terrible wrong...
when i have time the next days i will load some sounds up, and start
a new topic on this.
the mkh mics are really great, but this bothers me..
all the best
emil
Am 29.05.2007 um 16:19 schrieb wildlifeanalysis:
> Hello
>
> Listening back to some recent recordings, I am noticing hiss. The
> recordings were taken on a pond where it was very very quiet. It is
> the beginning of the season and there are no insects to speak of. At
> the moment I do not have the measured frequency range of the hiss, but
> it is in the upper mids/ lower highs. I believe this hiss is fairly
> typical with condenser mics (in my limited experience) and perhaps
> with electronic audio gear in general.
>
> The rig I am using is an MKH30/40 pair -> Fostex FR2LE. No preamp
> other than the one built into the FR2LE. The trim and the input knobs
> on the FR2LE were set to their maximums to get a decent saturation
> (which is probably my first clue). Maxing out these settings were also
> necessary in louder environments.
>
> So here is the question(s): Is this hiss generated by the mics, the
> preamps, or both? Would adding a good preamp to get a better
> saturation help reduce the affects of this hiss?
>
> I do not have other gear to do any mashup testing, so any advice from
> those with more experience would be greatly appreciated. My hunch is
> that the FR2LE preamps are either not clean enough or are not powerful
> enough when using an MKH pair considering all the postings (and specs)
> I have seen touting the low self noise of the mics.
>
> Best
> David
>
>
>
|