The Cavaillé-Coll organ in St.Ouen, Rouen (F)

Use headphones please.

Very natural high end and mids. Low end I always experience differently than in any dummy head recording, low end is always sounding more open in reality, I don't know how our brains do that. Who's head was it? B&K ? Neumann KU81/100?

i perceive a vastly different depth between instrument and applause and the perspective of the bass is not to my liking either.

The dummyhead was my own head.
The mics: Sennheiser/Apogee Ambeo headset with an iPhone6s.
Lightweight, inconspicuous, and not too bad a sound.

I could be wrong, but I think the Neumann head has circuitry to widen the low frequencies.

Amazing how quiet you are ! Heva your head sounds great !

Probably you refer to the shuffle filter (or shuffler) coined by Alan Blumlein. Actually I never have read about Neumann using that.

Somewhere I read in an AES paper that the KU100 is diffuse-field equalized, i.e. it is adding HF with EQ.

Neumann has always made claims that the KU100 was more loudspeaker compatible than other 'head' mics; to me that implies some sort of shuffling, at least at LF.

From the product web page: "Unlike older dummy head microphones, the KU 100 is compatible with loudspeaker playback, too, creating a stereo image similar to conventional microphones yet with a superior sense of space and depth." They don't, of course, say how that's achieved.

This brings up something that's always puzzled me about dummy-head binaural recordings: If listened to with over-the-ear 'phones or on loudspeakers, the sound is subjected to the considerable frequency filtering of two pinnae is series - that of the dummy head, then those of the listener; how can that possibly result in accurate frequency response? It's only ever made sense to me to listen to recordings made by dummy heads that have naturalistic pinnae, with in-ear, or canal phones (that bypass the pinnae). And using a dummy head without pinnae for loudspeaker or over-the-ear phones listening.

Indeed, the otherwise stellar nature recordings of Gordon Hempton (with KU100) have an odd 'colour' that overlays them all.

I Just sit down and listen (in awe of the St.Ouen tornado).
The Ambeo does register tiny details and movements though; playback on them is incredible (though I hate in-ears).

These represent close to the theoretical ideal of binaural recording and reproduction - recording and playback at nearly the same point in the 'aural chain'; avoiding all the issues in my previous post.

Here it is with a little widening in Audacity for spkr playback:

I generally save a copy in Reaper with a sort of blumlein shuffler:
- stereo to MS
- bass lift
- MS to Stereo

I assume you mean bass lift to the 'Side' only?

Ah, yes!

Now we all know what's going on inside Heva's head - nothing but beautiful organ music!

what a sound, those thunderous pedal reeds are unmistakeable in the organ world

Another petit peu of the tutti blast, with the pedal Contrebombarde 32' in the final C-major chord, that's 16Hz [the long G pedalnote is about 24Hz].

Use headphones, sit still as the Parisian mammoth is unleashed behind you ....

You might be able to simplify that to one step. I have a recording this week that will need shuffling, and I'll be using this in post:
https://forum.cockos.com/showthread.php?t=213501

Sennheiser Ambeo headset vs. Guilmant
One of the largest and loudest organs in Germany :-)

MAJOR sounds! Highly realistic and very enjoyable. Bravo!

Thanks, amazing Sennheiser Ambeo :-)

Just a pleasant tuesday evening, and then up there to the left there is some Strauss ...

Ambeo headset - listen on cans

Cologne cathedral ?

Genau

Cologne cathedral ?

Yes

Paris 2025

Very energetic playing ! Is it Notre Dame ? Sennheiser Ambeo ?

Yes, my thoughts exactly.

All true