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Freiberg Organ Model - v.2The Specification of the Instrument
The CompassThe original compass of the manuals is 4 octaves without the lowest C# (this tone was added virtually in our model). The original pedal compass is 2 octaves without the lowest C# (also added virtually). In the virtual model, we extended the compass of the manuals to 4.5 octaves (up to f) and also the pedal compass was extended to 2.5 octaves (up to f) Sample Quality10 channel recording was done in 96kHz/24 bit, the post processing was done using 32-bit depth. The resulting wet samples are offered in 24bit/48kHz quality, multiple releases (3-4 sets, one for a steady tone, one for a short tone one or two for a very short staccato). Occasional multiple attack samples are used. The reverberation time is up to 4 seconds. The steady sound of the pipes has about 6-8 seconds for the flue pipes, up to 12 seconds for reeds and mixtures. There are multiple loops in the sample (normally 3 sometimes up to 5). Random pipe detuning applied. Two tremulants (Tremulante, Schwebung) modelled at different rates. The sample set is encrypted so that the original wave files are not user-editable outside Hauptwerk. The sample set can be used only in conjunction with Hauptwerk software, in the version 3.30 and higher. Nevertheless, all the voicing functions within Hauptwerk remain funcional. The sample set is presented in 2 different versions:
All the versions together contain 21.118 audio samples and it is 26.5 GB of uncompressed audio data. If you want to make a decision, which version is the best for your needs, you might consider ordering the demo sample set first - 5 selected stops are available in all the versions for your testing (see the download page for more details). The Tuning and TemperamentThe organ is tuned in Chorton, about 70 cents above the "normal" a. When recorded, its heigth was a=458.1 Hz. There are 5 temperament charts coming with the sample set. First of all, it is the nowadays temperament, which was chosen by the restoration committee in July, 2007. It is the Neidhardt II temperament, descibed by the author as "fuer die kleine Stadt" what is perfectly fitting for Freiberg. This is the temperament table (the cent deviation from the equal temperament):
However, this is not the original temperament of the organ when built by G. Silbermann. According to the positions of the hats of the Quintadena, the original temperament could be reconstructed with a great degree of certainty in January, 2007. This reconstructed temperament is also offered as a special temperament chart installed with the sample set. It is modified meantone temperament, this is its table:
In addition, we offer three more temperament charts with the sample sets, all of which are modified meantone temperaments as found during the course of history on the other Silbermann instrument, the great organ of the Freiberg Cathedral. These are the Silbermann-Sorge temperament, modified Silbermann temperament of 1982 and another modification of this temperament known as "Freiberg 1985". These temperaments are described in detail in the book Christoph Schwarzenberg - Kristian Wegscheider: Die grosse Silbermann-Orgel im Dom zu Freiberg, p. A5-A7. All the temperament charts may be optionally installed together with the sample set. ScreenshotsThe sample set was optimized for the 1270x1024 px screen resolution. There are dual stop jambs (left and right) for the use with the two touchscreens. However, the orientation of these dual stop jambs is vertical (as required by the drawstop original layout) and therefore the touch monitor needs to support the rotation (sometimes called the pivot function).
Updates: see the dedicated web page. |