Hello all,
thanks to Hauptwerk, we now have achieved the first virtual reconstruction of historic organ ranks.
The Bosch-Schnitger organ of Vollenhove/Netherlands had lost two of its prominent Schnitger stops during the 300 year's changing history: The wonderful F.C. Schnitger Roerfluit 8' as well as the typical Vox Humana.
Within a new Dutch documentational project, we got the permission to record those missing F.C. Schnitger stops from the small, but extraordinary Duurswoude organ in Frisland.
First information on this project can be found at
http://http://www.organartmedia.com/Duurswoude-Intro.html
The Roerfluit is orginally left from 1723, whereas the Vox Humana is a complete rebuilt of the original F.C. Schnitger Vox Humana of the famous Hagerbeer-Schnitger organ of Alkmaar.
Both stops were recorded dry, to be able to virtually place them in the Vollenhove church by using special impulse responses of this building.
If you are interested, here are the results:
First a small Frescobaldi toccata with only the "new" Roerfluit, which will replace the Bourdon 8':
http://www.organartmedia.com/sounds/vol ... rfluit.mp3
Compared to the actually exisiting Vollenhove Bourdon 8', which is nice, but less characteristic and sonorous:
http://www.organartmedia.com/sounds/vol ... ourdon.mp3
The virtual placement by impulse response again showed the inherent problems of this techniqe:
All pipes had to be carefully revoiced to adapt to the new room, thus keeping the typical sound characteristics. Some resulting sounds were not usable at all, because the frequency response of the target building disabled a proper room resonance for this pipe, so that this pipe had to be replaced or strongly revoiced. These are excactly the same problems, pipe organ builders encounter, when they install new pipe ranks.
These results clearly show, that applying an impulse response to a dry sample set not automatically reproduces the original room sound. The complete organ has to be revoiced on a pipe per pipe base, that doesn't mean only applying volume corrections, but also correcting the sound characteristic! Don't forget, that additionally each pipe has its own, slightly different, impulse response.
Also, the Vox Humana - now a virtual copy of a physical copy! - will be available for the new extended version .
The organ of Duurswoude is the only still existing organ, which was a complete new build by F.C. Schnitger. This organ will be published separately in near future. The sound, typical for F. C. Schnitger, is warm, rich and powerful.
At last, enjoy the newly recorded Bach Trio-Sonata BWV 525 with the reconstructed Roerfluit 8' and the Vox Humana, which was missing for about 100 years:
http://www.organartmedia.com/sounds/vol ... V525,1.mp3
http://www.organartmedia.com/sounds/vol ... V525,2.mp3
http://www.organartmedia.com/sounds/vol ... V525,3.mp3
Registration details can be found on the demo web site:
http://www.organartmedia.com/Vollenhove-Demos.html
(MIDI files by J. Pressler)
thanks to Hauptwerk, we now have achieved the first virtual reconstruction of historic organ ranks.
The Bosch-Schnitger organ of Vollenhove/Netherlands had lost two of its prominent Schnitger stops during the 300 year's changing history: The wonderful F.C. Schnitger Roerfluit 8' as well as the typical Vox Humana.
Within a new Dutch documentational project, we got the permission to record those missing F.C. Schnitger stops from the small, but extraordinary Duurswoude organ in Frisland.
First information on this project can be found at
http://http://www.organartmedia.com/Duurswoude-Intro.html
The Roerfluit is orginally left from 1723, whereas the Vox Humana is a complete rebuilt of the original F.C. Schnitger Vox Humana of the famous Hagerbeer-Schnitger organ of Alkmaar.
Both stops were recorded dry, to be able to virtually place them in the Vollenhove church by using special impulse responses of this building.
If you are interested, here are the results:
First a small Frescobaldi toccata with only the "new" Roerfluit, which will replace the Bourdon 8':
http://www.organartmedia.com/sounds/vol ... rfluit.mp3
Compared to the actually exisiting Vollenhove Bourdon 8', which is nice, but less characteristic and sonorous:
http://www.organartmedia.com/sounds/vol ... ourdon.mp3
The virtual placement by impulse response again showed the inherent problems of this techniqe:
All pipes had to be carefully revoiced to adapt to the new room, thus keeping the typical sound characteristics. Some resulting sounds were not usable at all, because the frequency response of the target building disabled a proper room resonance for this pipe, so that this pipe had to be replaced or strongly revoiced. These are excactly the same problems, pipe organ builders encounter, when they install new pipe ranks.
These results clearly show, that applying an impulse response to a dry sample set not automatically reproduces the original room sound. The complete organ has to be revoiced on a pipe per pipe base, that doesn't mean only applying volume corrections, but also correcting the sound characteristic! Don't forget, that additionally each pipe has its own, slightly different, impulse response.
Also, the Vox Humana - now a virtual copy of a physical copy! - will be available for the new extended version .
The organ of Duurswoude is the only still existing organ, which was a complete new build by F.C. Schnitger. This organ will be published separately in near future. The sound, typical for F. C. Schnitger, is warm, rich and powerful.
At last, enjoy the newly recorded Bach Trio-Sonata BWV 525 with the reconstructed Roerfluit 8' and the Vox Humana, which was missing for about 100 years:
http://www.organartmedia.com/sounds/vol ... V525,1.mp3
http://www.organartmedia.com/sounds/vol ... V525,2.mp3
http://www.organartmedia.com/sounds/vol ... V525,3.mp3
Registration details can be found on the demo web site:
http://www.organartmedia.com/Vollenhove-Demos.html
(MIDI files by J. Pressler)
Prof. Helmut Maier
OrganArt Media Sound Engineering
D-88662 Überlingen/Lake Constance
http://www.organartmedia.com
OrganArt Media Sound Engineering
D-88662 Überlingen/Lake Constance
http://www.organartmedia.com