ACOUSTICALLY CHARACTERIZED 'EXPERIENCE OF TRANSCENDENCE' IN PFARRKIRCHE ST MICHAEL, STEYR
'Experience of Transcendence' is acoustically characterized in Pfarrkirche St Michael, Steyr using trained participants' feedback during live organ rendition of Johann Sebastian Bach's 'TOCCATA'. Transcendental experiences of 'awe', 'deeper understanding' and 'tranquility' were acoustically derived and termed as 'Acoustically Transcendent Awe' (ATAWE), 'Acoustically Transcendent Intelligibility' (ATINT), and 'Acoustically Transcendent Tranquility' (ATTRANQ). In this study, 'Acoustically Transcendent Intelligibility' (ATINT) and 'Acoustically Transcendent Tranquility' (ATTRANQ) showed significant multiregressions with subjective acoustical qualities of the space (R2=0.99; p=0.01) and (R2=0.99; p=0.04) respectively. Instantaneous, statistical and percentile sound levels during ambient noise and during live performances were recorded at different listening zones. Background Noise Levels (LA90) between 76dB-82dB indicated congregational and choir space as optimally loud (without any need for electro-acoustical support) and sanctuary (with LA90 value of 56.8dB) as needing support, for performance and listening. Acoustically Transcendent Intelligibility (ATINT) was found significantly predictable from Subjective Acoustical Quality of Silence from Background Noise (SAQSNOIS) (p=0.05) and from Background Noise Level (LA90) (p=0.05). Perception of optimal Reverberance (SAQREV) in the Choir Loft provides good ambience for choir and musicians. These significant relationships between Acoustical Transcendence Impressions, Subjective Acoustical Qualities and Sound Levels can serve as part of Pfarrkirche St Michael's unique intangible heritage.
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