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-20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 110.00 120.00 130.00 140.00 metres (front) (Front)(Down)
-30.00
-20.00
-10.00
0.00
10.00
20.00
30.00
metres
(Up) 108.8
106.3
103.9
101.4
98.9
96.5
94.0
91.6
89.1
86.6
84.2
81.7
79.3
76.8
74.3
71.9
69.4
67.0
64.5
62.1
59.6
57.1
54.7
52.2
49.8
47.3
44.8
42.4
39.9
37.5
35.0
32.6
30.1Odeon©1985-2013 Licensed to: Odeon A/S
User-friendly assignment of materials
from a long and extendable library.
Materials
The room surfaces are assigned
materials, with absorption coefficients
for the octave bands from 63 Hz to
8000 Hz, as well as scattering and
transmission properties.
Measurement - Simulation - Auralisation
Sound Sources
Point sources are described by a
directivity pattern, a power spectrum and
a delay, allowing the definition of natural
sound sources as well as loudspeaker
systems. Array sources can be imported
from an extensible XML-format or can
be created from point sources within the
ODEON array source editor.
O
XY
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Odeon©1985-2007
O
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Odeon©1985-2007
SketchUp Plug-in
Download a free plug-in for importing
models directly from Trimble SketchUp
(www.sketchup.com) to ODEON.
ODEON takes care to simplify the room
for optimized acoustic simulations.
Free Trial
Try ODEON without time limitations:
www.odeon.dk/free-demo-version.
1P1
8.4
7.6
6.8
6.0
5.2
4.4
3.6
2.8
2.0
1.2
0.4
-0.4
-1.2
-2.0
-2.8
-3.6
-4.4
-5.2
-6.0
-6.8
-7.6
-8.4
-9.2
C80 at 1000 Hz > 10.0
< -9.8Odeon©1985-2003
Grid Maps
Maps of calculated acoustic parameters
are shown for any number of selected
receiver surfaces.
A near field plot obtained by the ODEON
array source editor in a few seconds.
Line sources and surface sources are
useful for calculations in industrial
environments. The above example is a
turbine from a power station.
Standards Supported
ISO 3382 series – Performance
places, ordinary rooms, open-plan
offices.
ISO 14257 – Workplaces.
IEC 60268-16 – Speech
Transmission Index.
Open Room
Room geometries can be imported from
most CAD systems in the .DXF or .3DS
format.
Methods
ODEON makes use of hybrid algorithms,
highly optimized for maximum accuracy
at modest calculation time. Early
reflections are calculated using the
Image Source Method, while late
reflections are simulated by a technique
called Ray Radiosity, with secondary
sources placed at all reflection points.
Scattering/diffraction is handled properly
using the Reflection Based Scattering
method.
One and two point diffraction paths over
screens are automatically detected by
ODEON, allowing the sound attenuation
behind the screen to be calculated.
Sound distribution in the shadow
zone of a screen.
www.odeon.dk
Distribution of clarity C80 at 1 kHz.
Reflectogram
Arrival time: 89,77 ms (37,89 ms rel. direct or first reflection)
Level of: -10,43 dB (-5,35 dB rel. direct)
Azimuth angle: -29,21°, elevation angle: 2,18°
Reflection: 1. order, 10. reflection of 66, source:1
time (seconds rel. direct sound)
0,30,280,260,240,220,20,180,160,140,120,10,080,060,040,020
SP
L (
dB
)
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
Elevation
-20
-40
-60
-20
-40
-60
-50
-50
Azimuth
-20
-40
-60
-20
-40
-60
-50
-50
Frequency (Hz)
63 250 2000
-12
-14
Odeon©1985-2007
www.odeon.dk
Distribution of clarity C80 at 1 kHz.
Sound Sources
Point sources can be defined from a
directivity pattern, gain, equalisation and
delay, allowing the definition of natural
sound sources as well as loudspeaker
systems. Loudspeaker data in CLF
(Common Loudspeaker Format) can be
found at www.CLFgroup.org.
P
1
4
P
1
Reliable results
The frequency-dependent reflection based scattering method in
ODEON is one of the reasons for excellent agreement with
measurement results. In this example simulated and measured
clarity C80 at 500 Hz is shown for the Elmia concert hall.
Job List
The Job list is where calculation of point responses and auralisation results
are organised and displayed. Point responses, multi-point responses, grid
maps and reflection paths can be calculated in the job list.
Measuring system
Measuring and simulating room impulse responses can be done from within the
same software! ODEON version 12 is equipped with a powerful measuring system
that allows the user to measure impulse responses in a room, calculate the ISO
3382 room acoustic parameters and make comparisons with simulations.
Auralisation
Listen to the rooms and demonstrate
predicted acoustics to clients, as it
sounds in reality. Auralisation works
both for headphone and surround
system reproduction.
In ODEON you can measure, simulate
and compare the results side by side!
Measured results are
displayed in the same
way as simulations.
Elegant and user-friendly interface
Fast and reliable calculation
Astonishingly realistic auralisation
The Elmia concert hall (2nd
international Round
Robin on room acoustic prediction models).
Ordering Information
Odeon A/S Scion-DTU, Diplomvej, Bldg 381 DK-2800 Kgs. Lyngby, Denmark www.odeon.dk
Energy parameters
Frequency (Hz)
63 125 250 500 1000 2000 4000 8000
T(3
0)
(s)
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Odeon©1985-2013 Licensed to: Odeon A/S
C(80) at 500 Hz
Distance
R1 a
t 5.3
4 m
R2 a
t 11.8
3 m
R3 a
t 12.5
0 m
R4 a
t 18.0
4 m
R5 a
t 20.5
0 m
R6 a
t 30.6
6 m
C(8
0)
(dB
)
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
Simulated
Measured
Receiver: 5
Frequency (Hertz)
63
125
250
500
1000
2000
4000
8000
C(8
0)
(dB
)
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
Odeon©1985-2013 Licensed to: Odeon A/S
C:\Odeon12Combined\Measurements\IR_BasementCropped.wavRay Impulse response at 2000Hz
time (seconds incl. filter delay)1.21.110.90.80.70.60.50.40.30.20.10
p x
E1
22
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
Odeon©1985-2011 Licensed to: Odeon A/S
C:\Odeon12Combined\Measurements\IR_BasementCropped.wavDecay curves at 2000Hz T(30) = 1.28 seconds
time(seconds)0.90.850.80.750.70.650.60.550.50.450.40.350.30.250.20.150.10.050
SPL(d
B)
72
70
68
66
64
62
60
58
56
54
52
50
48
46
44
42
40
38
36
34
32
30
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26
24
22
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18
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14
Odeon©1985-2011 Licensed to: Odeon A/S
