Inhaltszusammenfassung

The term „Mixture“ refers to a compound stop of high-pitched ranks adding brilliance and loudness to the pipe organ sound. As Mixture stops and their sound have been refined over centuries, one can expect to find a set of correlating psychoacoustic parameters in their long-term average sound spectra representing a well-balanced sound. Mixture stops generate some pitch salience at their fundamental pitch and the participating ranks partly merge with each other. However, Parncutt´s theory of ...The term „Mixture“ refers to a compound stop of high-pitched ranks adding brilliance and loudness to the pipe organ sound. As Mixture stops and their sound have been refined over centuries, one can expect to find a set of correlating psychoacoustic parameters in their long-term average sound spectra representing a well-balanced sound. Mixture stops generate some pitch salience at their fundamental pitch and the participating ranks partly merge with each other. However, Parncutt´s theory of harmony shows that Mixtures do not aim at maximum pitch salience at unison pitch. The pitch heights of the individual ranks contributing to a Mixture stop fall into separate critical bands in most cases. Consequently, Mixtures increase the loudness while avoiding acoustical roughness between their neighbored pitches. This explains the selection of certain pitches from the harmonic series. Finally, the common practice of introducing breakpoints into the ranks contributing to a Mixture adjusts the course of their acoustic brightness over the key compass. It reduces from bass to treble in a similar manner, as it is the case in bright brass instruments or as the trumpet stop on a pipe organ does. This sound might thus have been influenced the development of pipe organ Mixtures. » weiterlesen» einklappen

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Klassifikation

DFG Fachgebiet:
Kunst-, Musik-, Theater- und Medienwissenschaften

DDC Sachgruppe:
Musik