Creswell Crags

Information

Description: 
A series of IRs recorded at Creswell Crags - including some recorded inside one of the caves using a sine sweep, and in the main gorge using a starter pistol. See link below for a full report on the recordings.
Measurement Team: 
Francis Stevens
Capture Date: 
Wed, 14/09/2016
Source Sound: 
Swept Sine: 22 Hz - 22 kHz 30s; Starter pistol
Source Sound Category: 
Swept sine (logarithmic)
Microphone(s): 
Soundfield STM 450 B-format microphone
Space Category: 
Open Air
Generation Type: 
Real World

Analysis

Analysis Description: 
One of the IRs recorded inside a cave
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)
1.351.191.120.880.730.560.460.390.310.23

Early Decay Time EDT (seconds)
1.021.021.020.640.510.380.380.250.250.12

Definition D50
0.530.530.640.690.850.890.920.950.970.99

Clarity C50 (dB)
0.450.522.443.487.659.0310.5112.7614.7621.36

Clarity C80 (dB)
5.584.134.308.729.7212.4814.9017.5120.5528.94


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: 16
Duration: 1 s
File Size: 752.18 KB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1 s
File Size: 750.05 KB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1 s
File Size: 750.04 KB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1 s
File Size: 750.04 KB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1.51 s
File Size: 1.1 MB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1.23 s
File Size: 926.1 KB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1.48 s
File Size: 1.09 MB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1.52 s
File Size: 1.11 MB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 2.66 s
File Size: 1.95 MB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1.4 s
File Size: 1.03 MB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1 s
File Size: 748.81 KB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 2.21 s
File Size: 1.62 MB
File Format: wav


Sample Rate: 96 kHz
Number of Channels: 4
Bits per Sample: 16
Duration: 1.36 s
File Size: 1023.65 KB
File Format: wav

Images

Photographs and Diagrams: 
The recording setup on the main level of Robin Hood cave
The microphone placed in the gorge on the path next to Robin Hood Cave

Location

Address: 
Creswell Crags
Crags Road Creswell
Worksop S80 3LH
United Kingdom
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Attribution

Attribute this work to: 
www.openairlib.net