David,
The rig was with the mics pointing in the horizontal and the sounds came fr=
om under in the street, maybe the stereo image problem is from here, but my=
tripod could't point down.
One telescope box (iron made ) was 1m from the side of the rig, you are ab=
solutely right.
My house wall was 2,5 mts from the rig, there was no roof.
The noise at 6.00 was from my wife taping with her fingers in the tripod l=
eg at my demand, I think the DIY suspension is not so bad.
The two lyers of lycra d'ont stop the wind noise however, 2km/h only.
Your analisys was so damn exact!
Thank you for your tips for my next field recording, and I will post here o=
f corse.
Regards,
Jos=E9
--- In "Avocet" <> wrote:
>
> > First experiment with mkh 30/30. With some taping in the tripod in
> the end. From my varanda in 3rth floor.
> The wind was 2km/h and with two liers of lycra I thing was best.
> http://soundcloud.com/freitojos/121015t1700z-blumlein-mkh3030
>
> Jos=E9,
>
> Good stereo image. I hear a lot of directional sounds (sonels or sound
> pixels) estimated at least 7 different directions which is good. The
> stereo image is narrower than the stereo object - rather like a fish
> eye lens. I hear a reverberation or an echo from either a back wall or
> roof of the verandah? Remember that the back of the mic rig is live as
> well. I also hear a reflection from the right hand side.
>
> What was the thumping noise at about 06:00? It sounded like noise
> coming up the tripod. Slight wind noise towards the end around 06:29
> onward which would be noticeable with a quiet background. Also try
> some fine cloth like thin nylon. Test this my blowing with it across
> your lips and you should feel some back pressure. Lycra can be quite
> open, so experiment. If you can use a single layer, it's better.
>
> On an audiogram, there is banding at about 170 Hz intervals, more on
> the right, which would suggest a path length difference of around 2met
> which is probably from a reflection at about 1met away.
>
> The dogs were well placed, and the closer people. You may have to get
> fairly close when recording wildlife if you want individual animals or
> birds. Try to choose locations with a "dead" back end as the Blumlein
> rig is fully sensitive to the rear.
>
> I often suggest trying a mic rig close to the ground. Sometimes this
> works well and it is worth a try.
>
> David
>
> David Brinicombe
> North Devon, UK
> Cogito cogito ergo cogito sum - Ambrose Bierce
>
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