Acoustic survey:

UNESCO acoustic layer

Sound is not the dominant sense in the perception of reality. However, it has a special place in art and aesthetic experiences. It is an inseparable element of the landscape and it characterizes and characterizes architectural objects. As part of the UNESCO Multisensory project, employees of the Department of Mechanics and Vibroacoustics, AGH University of Science and Technology in Krakow, under the supervision of prof. Jerzy Wiciak performed the recording and analysis of the soundscape and carried out detailed acoustic tests of the churches in Lipnica Murowana. The test results were compiled both in the form of numerical data: reverberation time (figure x), clarity for speech and music, speech intelligibility, spatiality of sound and others, but also in the form of a base of sounds and impulse responses. This information allows to fully recreate and characterize the acoustics of the tested objects, and can also be used in the virtualization of the acoustic field. All recordings and measurements were made with the use of the most modern technologies, including ambisonia, which allows for fuller immersion during a virtual tour of Lipnica monuments. It should be emphasized that the acoustic activities undertaken as part of the project are unique on a global scale, because most of this type of digitization activities focuses on the visual sphere, and the sound is at most a stereo-complementary.

1

2017

Multisensory UNESCO – digitization of tangible and intangible heritage of
Lipnica Murowana

Acoustic measurements in the churches of Lipnica Murowana. The basic parameters and the obtained results of the calculations are presented below. Selected impulse responses recorded in churches can be downloaded in ambisonic (FuMa), binaural, stereo and surround formats.

Czas pogłosu kościołów w Lipnicy Murowanej w funkcji częstotliwości

Fig. 1 Reverberation time of churches in Lipnica Murowana as a function of frequency.

Download impulse responses:

Listen to impulse responses:

St. Leonard in Lipnica Murowana

St. Andrew in Lipnica Murowana

St. Simon in Lipnica Murowana

2

2018

Multisensory UNESCO 2. Digitization of the church heritage of southern Małopolska
on the 15th anniversary of being entered on the UNESCO list

Acoustic measurements in wooden churches of Southern Poland, included in the UNESCO list, were made according to the ISO 3382-3: 2012 standard. The basic parameters and the obtained results of the calculations are presented below. Selected impulse responses recorded in churches can be downloaded in ambisonic (FuMa), binaural, stereo and surround formats.

Porównanie charakterystyki częstotliwościowej czasu pogłosu drewnianych kościołów Polski Południowej

Fig. 2 Comparison of the frequency characteristics of the reverberation time of wooden churches in Southern Poland, entered on the UNESCO list

Tab. 1. List of acoustic parameters of wooden churches in Southern Poland, entered on the UNESCO list

Churches of Southern Poland C80 [dB] C50 [dB] BR TR STI
Church of St. Filip and Jakub in Sękowa 6,7 4,1 1 0,75 0,62″
Church of St. Michael the Archangel in Binarowa 9,5 6,6 0,76 0,78 0,67″
Church of All Saints in Blizne 10,9 8 0,8 0,82 0,65″
Church of the Assumption of the Blessed Virgin Mary in Haczów 1,77 10,2 8 0,79 0,78″
Church of St. Michael the Archangel in Dębno 9,7 6,2 0,88 0,78 0,7″

Legend – acoustic parameters:

C50 – sound clarity for speech
C80 – sound clarity for music
STI – speech intelligibility on a scale of 0-1
BR – bass indicator
TR – treble indicator

Legend – impulse responses:

Stereo.wav – two-channel XY stereo
Bformat.wav – the ambisonic format in the FuMa convention
Binaural.wav – binaural format
Surround-51.wav – surround 5.1 ITU-R BS 775
Surround-71.wav – surround 7.1 ITU-R BS 775

Listen to impulse responses:

Church of St. Michael the Archangel
in Binarowa

Church of St. Michael the Archangel
in Dębno

Church of St. Philip and Jacob
in Sękowa

Church of All the saints
in Blizne

Church of the Assumption of the Blessed Virgin Mary
in Haczów

3

2019

Multisensory UNESCO 3. Digitization of 8 wooden churches in the Polish region of the Carpathians entered on the UNESCO list

Acoustic measurements in wooden churches of the Carpathian region in Poland, entered on the UNESCO list, were made according to the ISO 3382-3: 2012 standard. The basic parameters and the obtained results of the calculations are presented below. Selected impulse responses recorded in churches can be downloaded in ambisonic (FuMa), binaural, stereo and surround formats.

Porównanie charakterystyki częstotliwościowej czasu-pogłosu drewnianych cerkwi Polski Południowej

Fig. 3 Comparison of the frequency characteristics of the reverberation time of the wooden churches of Southern Poland, entered on the UNESCO list

Tab. 2. List of acoustic parameters of wooden churches in the Carpathian region in Poland, entered on the UNESCO list

Orthodox churches of Southern Poland C80 [dB] C50 [dB] BR TR STI
Orthodox Church of the Nativity of the Holy Mother of God in Chotyniec 5,9 3 0,7 0,7 0,7
Orthodox church of St. Paraskeva in Radruż 3,8 0,9 0,6 0,7 0,6
Orthodox church of St. Michael the Archangel in Smolnik 7,9 4,9 0,7 0,7 0,6
Orthodox church of St. Jakub in Powroźnik 8,4 5,1 0,7 0,9 0,7
Orthodox church of St. Michael the Archangel in Brunary Wyżne 6,7 4,3 0,8 0,8 0,6
Orthodox church of St. Paraskeva in Kwiatoń 6,5 3,9 0,8 0,9 0,6
Orthodox church of the Protection of the Mother of God in Owczary 7,8 5,1 0,9 0,7 0,7
Orthodox church of St. Michael the Archangel in Turzańsk 7 5,1 0,9 0,8 0,6

Legend – acoustic parameters:

C50 – sound clarity for speech
C80 – sound clarity for music
STI – speech intelligibility on a scale of 0-1
BR – bass indicator
TR – treble indicator

Legend – impulse responses:

Stereo.wav – two-channel XY stereo
Bformat.wav – the ambisonic format in the FuMa convention
Binaural.wav – binaural format
Surround-51.wav – surround 5.1 ITU-R BS 775
Surround-71.wav – surround 7.1 ITU-R BS 775

4

2020

Multisensory UNESCO 4. Digitization of Cracow’s cultural heritage entered on the UNESCO list

The acoustic measurements of the spatial impulse responses of the Barbican courtyard were made using the ISO 3382-3: 2012 standard, respectively.

Schemat lokalizacji punktów pomiarowych R-mikrofon i S-żródła dźwięku

Fig 1. Scheme of location of measurement points (R – microphone position, S – sound source position)

Basic parameters and calculation results are presented below.

Selected impulse responses recorded in the courtyard can be downloaded in ambisonic (FuMa), binaural, stereo and surround formats.

List of frequency characteristics of the early decay time EDT of the courtyard of the Barbican for 3 different positions of the sound source s1

Figure 2. Frequency characteristics of the EDT early decay time of the Barbican courtyard for 3 different locations of the sound source S1

List of frequency characteristics of the early decay time EDT of the courtyard of the Barbican for 3 different positions of the s2a sound source

Figure 3. Frequency characteristics of the EDT early decay time of the Barbican courtyard for 3 different locations of the sound source S2

List of frequency characteristics of the early decay time EDT of the courtyard of the Barbican for 3 different positions of the sound source s3

Figure 4. Frequency characteristics of the EDT early decay time of the Barbican courtyard for 3 different locations of the sound source S3

Table. 1. List of acoustic parameters in the courtyard of the Barbican for 3 different locations of the sound source (S1, S2, S3)

C80 [dB] C50 [dB] BR TR STI
R1S1 13,1 9,6 0,74 0,91 0,813
R2S1 5,7 3,5 0,51 0,98 0,698
R3S1 3,9 -0,9 0,52 0,87 0,657
R4S1 3 -0,1 1,07 1,03 0,658
R5S1 2,9 0,2 0,75 0,76 0,625
R6S1 8,2 5 0,65 0,85 0,718
R7S1 8 5,6 0,55 0,96 0,725
R8S2 16,8 13 0,85 1,01 0,913
R8S2 19,6 13,9 0,87 0,86 0,919
R9S2 12,4 9,8 0,65 0,92 0,826
R10S2 8,5 6,5 0,58 0,8 0,747
R11S2 5,2 -0,2 0,51 1,06 0,665
R12S2 6,9 1,2 0,54 0,85 0,701
R13S2 6,1 1,6 0,52 1,03 0,682
R14S2 7,6 5,2 0,63 0,95 0,72
R15S2 10,6 8,2 0,59 0,85 0,759

Legend:
C50 – sound clarity for speech
C80 – sound clarity for music
STI – speech intelligibility on a scale of 0-1
BR – bass index
TR – treble indicator

Download impulse responses:

Stereo – two-channel XY stereo
Barbican – Stereo

Bformat – FuMa ambisonic format
Barbican – Bformat

Binauralv – binaural format
Barbican – Binaural

Surround-51 – surround 5.1 ITU-R BS 775
Barbican – Surround-51

Surround-71 – surround 7.1 ITU-R BS 775
Barbican – Surround-71

Binaural sound of the surroundings of the Florian’s Gate during the COVID-19 pandemic (for correct perception, the sound should be played on the headphones).

Report on the study of the soundscape of the surroundings of the Florian Gate:

Download Report

5

2021

Multisensory UNESCO 5. Digitization of the cultural heritage of the Sanctuary in Kalwaria Zebrzydowska (UNESCO)

Acoustic measurements of spatial impulse responses of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska were performed using the ISO 3382-3:2012 standard. The location of the measurement points is shown in the schematic drawing 1.

Location diagram of R-microphone and S-sound source measurement points

Figure 1. Scheme of location of measurement points (R – microphone position, S – sound source position) [base: Olocom, CC BY-SA 4.0, commons.wikimedia.org/w/index.php?curid=11882073.png]

Basic parameters and calculation results are presented in the charts and tables below.

Selected impulse responses recorded in the Basilica can be downloaded in ambisonic (FuMa), binaural, stereo and surround formats.

List of frequency characteristics of the Early Decay Time EDT of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for two different sound source positions (S1, S2)

Figure 2. Frequency characteristics of the Early Decay Time EDT of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for two different sound source locations (S1, S2)

List of frequency characteristics of the Reverberation Time using the T20 method of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for two different sound source positions (S1, S2)

Figure 3. List of frequency characteristics of the Reverberation Time using the T20 method of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for two different sound source locations (S1, S2)

List of frequency characteristics of Sound Clarity for Speech C50 of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for two different sound source positions (S1, S2

Figure 4. List of frequency characteristics of Sound Clarity for Speech C50 of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for two different locations of the sound source (S1, S2)

List of frequency characteristics of Sound Clarity for C80 Music of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for two different sound source positions (S1, S2)

Figure 5. List of frequency characteristics of Sound Clarity for Music C80 of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for two different sound source locations (S1, S2)

Table 1. List of acoustic parameters of the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska for 2 different locations of the sound source (S1, S2)

C80 [dB] C50 [dB] BR TR STI
R2S2 5,2 4,4 0,6 0,79 0,526
R1S2 8,8 8,1 0,71 0,78 0,642
R4S2 1,7 0,1 0,7 0,79 0,44
R3S2 5,4 4,6 0,52 0,8 0,532
R6S2 0,6 -2 0,39 0,81 0,411
R5S2 2,2 0,6 0,33 0,8 0,458
R7S2 0,7 -2,1 0,64 0,95 0,431
R9S2 0,5 -1,6 0,53 0,92 0,394
R8S2 1,9 0,2 0,51 0,88 0,432
R2S1 11,3 9,1 0,67 0,91 0,709
R1S1 9,3 7,4 0,35 0,79 0,624
R1S1 9,4 7,6 0,37 0,8 0,626
R3S1 9,1 7,3 0,56 0,98 0,63
R4S1 7,5 6 0,54 0,99 0,589
R5S1 6,7 5,2 0,43 0,9 0,573
R6S1 4,9 3,6 0,46 0,76 0,537
R9S1 0,2 -1,3 0,59 0,89 0,415
R8S1 1,8 0,7 0,46 0,8 0,474
R7S1 3,4 2,3 0,64 0,91 0,498
R11S 0,9 -0,3 0,44 0,78 0,429
R10S 3,1 2,2 0,43 0,81 0,499
R14S -1,5 -2,9 0,53 0,84 0,379
R13S 0,2 -1,9 0,85 0,98 0,41
R12S 0,5 -0,7 0,63 0,81 0,434
R16S 0,3 -1,1 0,53 0,82 0,41
R15S 0 -1,5 0,39 0,8 0,394
Średnia 3,6 2,1 0,53 0,85 0,496
Mediana 2,1 0,7 0,53 0,81 0,466
Min -1,5 -2,9 0,33 0,76 0,379
Max 11,3 9,1 0,85 0,99 0,709

Legend:

C50 – sound clarity for speech
C80 – sound clarity for music
STI – speech intelligibility on a scale of 0-1
BR – bass index
TR – treble indicator

Download impulse responses:

Stereo – two-channel XY stereo
Kalwaria – Stereo

Bformat – FuMa ambisonic format
Kalwaria – Bformat

Binaural – binaural format
Kalwaria – Binaural

Surround-51 – surround 5.1 ITU-R BS 775
Kalwaria – Surround-51

Surround-71 – surround 7.1 ITU-R BS 775
Kalwaria – Surround-71

6

2022

UNESCO Multisensory 5. Digitization of the cultural heritage of the Sanctuary in Kalwaria Zebrzydowska (UNESCO)

St. Anthony and the Chapel of the Immaculate Conception

Acoustic measurements of the spatial impulse responses of the chapels in Kalwaria Zebrzydowska were carried out using the ISO 3382-3:2012 standard. The basic parameters and the obtained calculation results are presented in the charts and tables below. Selected impulse responses recorded in the Basilica can be downloaded in ambisonic (FuMa), binaural, stereo and surround formats.

List of Early Decay Time frequency characteristics of acoustic EDT Chapel of St. Anthony and Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

Figure 1. List of Early Decay Time frequency characteristics of the EDT acoustics of the Chapel of St. Anthony and the Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

List of frequency characteristics of the Reverberation Time using the T20 method of the Chapel of St. Anthony and the Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

Figure 2. List of frequency characteristics of the Reverberation Time using the T20 method of the Chapel of St. Anthony and the Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

List of frequency characteristics of Sound Clarity for Speech C50 of St. Anthony Chapel and Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

Figure 3. List of frequency characteristics of Sound Clarity for Speech C50 of the Chapel of St. Anthony and the Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

List of frequency characteristics of Sound Clarity for C80 Music of St. Anthony Chapel and Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

Figure 4. List of Frequency Responses of Sound Clarity for C80 Music of St. George’s Chapel Anthony and the Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

Table 1. List of acoustic parameters of the Chapel of St. Anthony and the Chapel of the Immaculate Conception in the Basilica of Our Lady of the Angels in Kalwaria Zebrzydowska

C80 [dB] C50 [dB] BR TR STI
Chapel of St. Anthony 1 0 -2.3 0.58 1.12 0.435
Chapel of St. Anthony 2 0.4 -1.8 0.60 1.14 0.444
Chapel IC 1 7.1 4.9 0.87 0.88 0.596
Chapel IC 2 6.5 4.2 0.62 0.93 0.594

Legend:

C50 – sound clarity for speech
C80 – sound clarity for music
STI – speech intelligibility on a scale of 0-1
BR – bass index
TR – treble indicator

Download impulse responses:

Stereo – two-channel XY stereo
Kalwaria – Stereo

Bformat – FuMa ambisonic format
Kalwaria – Bformat

Binaural – binaural format
Kalwaria – Binaural

Surround-51 – surround 5.1 ITU-R BS 775
Kalwaria – Surround-51

Surround-71 – surround 7.1 ITU-R BS 775
Kalwaria -Surround-71

Example recordings in the ambisonic format can be listened to using the Cat3DA web player player.spektrogram.com/ which allows you to track the listener’s head to play sounds from the appropriate directions. Recordings should be listened to using headphones.