Secret of the bell

… it sounds as if rose petals are dancing through the air …

If you strike a bell once in one place, you will hear a "waterfall" of different partial tones. The sound spectrum of a bell is complex. Children already describe a bell as "bim-bam". It seems almost unbelievable that over 50 different partials can be heard on one bellstrike!

When you strike a bell, you hear one distinctive tone, the striking tone (nominal). The special thing about it is that the striking tone cannot be measured with a physical or electronic device; as it does not really exist but is an acoustic illusion in our ears. Only the mixture of all "real measurable tones" creates the striking tone, which can be determined by hearing comparisons or mathematical calculations.

The secret of GRASSMAYR bells lies in their special rib (bell shape) and their manufacture. The challenge is to harmonize the different, distinctive partials both within one bell and in the chime of several bells. The tone structure of an octave bell, for example, is essentially characterized by the acoustically audible striking tone (nominal), the lower octave, the prime, the third, the fifth, the upper octave, the duodecimal, the double octave, the triple octave, ...
Another quality feature of GRASSMAYR bells, in addition to the leading casting quality, is their intensive, long-lasting reverberation.

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Leopoldstraße 53
6020 Innsbruck
Austria
Tel. +43 512 59416

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