Heslington Church (VAA Group 2)

Information

Description: 
Heslington Church (St. Paul’s) is a Methodist church situated on land where a church has been present since the 11th century. By the mid 19th century the building was considered too small and the material was in poor state. This led to the construction of what makes up the modern church on this site. When new housing estates and the university were built nearby, the church was once again considered too small and extensive extensions and alterations were made to the building in 1973. Of special note in these most recent alterations is the conversion of the chancel to a side-chapel, and the moving of the high altar to a large nave on the main space's side wall. The end result was the complete reorientation of the church from the traditional lengthways layout to an unusual 'landscape' orientation, with the congregation facing the nave on the side wall. [1] The reorientation of the space was a main reason we chose this location for our acoustic measurements. The unusual position of the priest's speaking position relative to the congregation could give interesting results (especially for speech intelligibility) in a space originally acoustically designed for a more traditional church layout. The loudspeaker was set up in the nave just in front of the altar at standing head height. The first five receiver positions were situated in the middle of the front row of each set of pews at seated head height, allowing for measurements of speech intelligibility from typical listener positions in the new orientation of the church. A sixth receiver was positioned in the central rear section of the church, providing impulse responses intended for creative musical use. The seventh receiver position was in the corner of the room, in order to capture all of the modes of vibration present in the space. [1] Heslington Church. “History”, https://sites.google.com/site/heslingtonchurch/home. [Online]. Available: https://sites.google.com/site/heslingtonchurch/history [Accessed: Feb. 26, 2015]
Measurement Team: 
Marc Ciufo Green
Michael James Lovedee-Turner
Yuchen Gong
Capture Date: 
Thu, 19/02/2015
Size: 
2000 m³
Source Sound: 
Swept Sine; 20Hz - 22kHz ; 15 Seconds.
Source Sound Category: 
Swept sine (logarithmic)
Input: 
Genelec 8030
Microphone(s): 
Soundfield ST450
Space Category: 
Church
Generation Type: 
Real World

Analysis

Analysis Description: 
This impulse response was taken from the middle rear section of the church. Receiver Position: 905 cm from right wall, 101 cm from rear wall, 160 cm High. Source Position: 1,134 cm from right wall 353 cm from front wall 157 cm high. Temperature: 13°C. Humidity: 52%.
Demonstration Impulse Response: 

Waveform

impulseClick here or on the waveform to upload a sound from your computer and hear it in this space

Acoustic Parameters


Octave Band
31.25 Hz62.5 Hz125 Hz250 Hz500 Hz1 kHz2 kHz4 kHz8 kHz16 kHz

Reverberation Time RT60 T30 (seconds)
3.731.281.401.591.751.651.491.140.860.59

Early Decay Time EDT (seconds)
1.381.251.121.761.891.631.631.250.990.61

Definition D50
0.180.560.390.250.410.450.310.430.510.78

Clarity C50 (dB)
-6.511.09-2.03-4.70-1.53-0.80-3.51-1.140.115.40

Clarity C80 (dB)
-2.623.341.56-2.201.511.18-0.291.593.549.34


Example Audio



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Impulse Responses

Format(s): 
B-Format (4 Channel Files)
B-Format: Multichannel: 

Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 24
Duration: 3 s
File Size: 3.3 MB
File Format: wav
Source Sound: Genelec 8030, 15 second Logarithmic Sine Sweep.
Microphone: Soundfield ST450 kit
Source Location: Directly in front of altar (located on slightly raised platform).
Microphone Location: Front row of pews directly left of altar.
Source Receiver Distance (m): 4.5 m
Source Height: 1.57 m
Receiver Height: 1.21 m
Temperature: 14 °C


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 24
Duration: 3 s
File Size: 3.3 MB
File Format: wav
Source Sound: Genelec 8030, 15 second Logarithmic Sine Sweep.
Microphone: Soundfield ST450 kit
Source Location: Directly in front of altar (located on slightly raised platform).
Microphone Location: Front of pew diagonally left from the altar.
Source Receiver Distance (m): 5 m
Source Height: 1.57 m
Receiver Height: 1.21 m
Temperature: 13 °C


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 24
Duration: 3 s
File Size: 3.3 MB
File Format: wav
Source Sound: Genelec 8030, 15 second Logarithmic Sine Sweep.
Microphone: Soundfield ST450 kit
Source Location: Directly in front of altar (Located on slightly raised platform).
Microphone Location: Front of pew middle left from the altar.
Source Receiver Distance (m): 4.1 m
Source Height: 1.57 m
Receiver Height: 1.21 m
Temperature: 13 °C


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 24
Duration: 3 s
File Size: 3.3 MB
File Format: wav
Source Sound: Genelec 8030, 15 second Logarithmic Sine Sweep.
Microphone: Soundfield ST450 kit
Source Location: Directly in front of altar (Located on slightly raised platform).
Microphone Location: Front of pews middle right from altar.
Source Receiver Distance (m): 4.1 m
Source Height: 1.57 m
Receiver Height: 1.21 m
Temperature: 13 °C


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 24
Duration: 3 s
File Size: 3.3 MB
File Format: wav
Source Sound: Genelec 8030, 15 second Logarithmic Sine Sweep.
Microphone: Soundfield ST450 kit
Source Location: Directly in front of altar (Located on slightly raised platform).
Microphone Location: Front of pews directly to the right of altar.
Source Receiver Distance (m): 4.5 m
Source Height: 1.57 m
Receiver Height: 1.21 m
Temperature: 13 °C


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 24
Duration: 3 s
File Size: 3.3 MB
File Format: wav
Source Sound: Genelec 8030, 15 second Logarithmic Sine Sweep.
Microphone: Soundfield ST450 kit
Source Location: Directly in front of altar (Located on slightly raised platform).
Microphone Location: Middle rear section of the church, just forward of back wall.
Source Receiver Distance (m): 11 m
Source Height: 1.57 m
Receiver Height: 1.60 m
Temperature: 13 °C


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 24
Duration: 3 s
File Size: 3.3 MB
File Format: wav
Source Sound: Genelec 8030, 15 second Logarithmic Sine Sweep.
Microphone: Soundfield ST450 kit
Source Location: Directly in front of altar (Located on slightly raised platform).
Microphone Location: Rear left corner of the church.
Source Receiver Distance (m): 12.1 m
Source Height: 1.57 m
Receiver Height: 1.60 m
Temperature: 13 °C

Images

Photographs and Diagrams: 
Outside photo of the church.
IR Location 1
Microphone IR1
Source Position
Source Position
Room Shot
Wooden Ceiling
Ceiling window
Side Chapel (Front of church in original orientation)
Side Chapel
Recording Interface
Equipment
IR 5 loc
IR 4 location
IR3 location
Church Matchstick Model (Overhead view)
IR6 photo
Main Room
Light plan of the church, showing the entire church including expansions.
Main room floor plan detailing source and receiver positions.

Location

Address: 
Heslington Church, Heslington, York
School Lane
York YO10 5EE
United Kingdom
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Attribution

Attribute this work to: 
www.openairlib.net
University of York AudioLab
Marc Ciufo Green
Michael Lovedee-Turner
Yuchen Gong