SeeSV-S205 User Guide
SeeSV-S205 User Guide
SeeSV-S205 User Guide
Contents
1. Main Body....................................................................................................................................................................................................... 3
Front side................................................................................................................................................................................................. 3
Side ............................................................................................................................................................................................................. 3
Hardware Installation......................................................................................................................................................................... 5
3. IP Configuration ........................................................................................................................................................................................ 11
3. Replay Mode............................................................................................................................................................................................... 17
1/3 Octave............................................................................................................................................................................................ 20
Beampower .......................................................................................................................................................................................... 22
Threshold .............................................................................................................................................................................................. 22
Path.......................................................................................................................................................................................................... 28
Sound Camera ................................................................................................................................................................................... 28
Specifications ............................................................................................................................................................................................. 30
Shortcuts ......................................................................................................................................................................................................... 31
Components Description
1. Main Body
Front side
The front plane of sound camera has got pentagonal shape,
and accommodates:
- Optical Camera
Side
Here you can notice the ergonomic shape of the body, with
Rare side
The back side of sound camera enables you to be mobile and
2. Physical Connection
Power Supply
It takes corresponding AC voltage from electric socket through
Camera.
Network cable
RJ45 LAN cable. The cable enables data communication
Hardware Installation
1. System Connectivity
2. Connection Steps
PoE Controller
Connect appropriate cables to the sockets on a PoE controller.
DC 12
below the center handle at the rear side of the main body.
Align the red dots on the plug and socket, and push it in until
Power Switch
In order to turn the power ON or OFF, push the power button for 2~3 seconds until you hear a click
sound and the control power LED light on the left of the button toggles between green (ON) and gray
(OFF) .
Initialization Indicator
When power is off, an optical camera ring control light indicator has whitish color as default. After about 40
seconds from launching the sound camera by the power button, the ring control light around the camera lens
turns orange, what indicates an initializing state. The sound camera is ready to be used when the ring control
light changes to green. It will take about 40 seconds more from the initialization state.
minute.
1. Software Installation
You should check “I accept the License Agreement” and agree with license agreement. You confirm the license
2. Software Activation
following directory:
If the software is being installed for the first time, the software license confirmation window will appear. You
may choose to try the software for free for 30 days, but if you got your license, click
Input License ID & password in appropriate boxes. This information you find on the envelope of your CD. After
clicking , the software is be successfully activated the sound camera is ready for use.
3. IP Configuration
enter .
Clicking the start button or hitting the Window Key
correctly.
by clicking on it,
proceed to .
IP address: 192.168.0.102
To check the communication connection between your PC and the Sound Camera, turn on the Sound Camera
by and run the SeeSV software . First, the power LED indicator turns green on the back of the
sound camera and then the optical camera ring indicator turns green . If the connection was set up correctly,
the Camera and DAQ indicator will turn orange in your user interface.
4. Status Check
Power OFF.
Power ON.
Data acquisition is set.
Optical camera is initializing.
Recording in progress.
Software Functions
1. User Interface
After launching execution file, the window below prompts out. The menu of the user interface (UI)
is designed around the video display window ○
1 . The top left menu bar ○
2 gives you the flexibility to control
replay or record mode. The bottom left chart ③ serves for analysing and viewing sound in time and frequency
③ Sound analysis
2. Record Mode
The mode allows the user to record a measurement, take a snapshot of video with beamforming map and
open help folder. If unchanged, all data are saved into a default folder located in:
Record mode If you see the yellow record icon, the record mode is set.
Recording button Starts saving measurement data including its user defined
Record type
Mic. Channels
channels. All functions for in replay mode will still work also
Now you can see how the trigger option handles the recording. Under pane , you find Level Trend chart as
seen below. If “Trigger record mode” is chosen, additionally to threshold level limiting the color map on the
screen, dashed line of trigger level appears and senses when beampower level exceeds set value. Once this
occurs, recording starts 1s before and ends after a user specified time duration. Once you run trigger mode,
after first measurement ends, it repeatedly launches next measurement when consequent event occurs.
Threshold level
Pre-trigger Buffer
Length = buffer+duration
After pressing record button, the menu changes its appearance, and play button together with record
mode button gray out.
Read Me SeeSV-S205
3. Replay Mode
Replay option gives you the opportunity to study and analyze your measurement data more closely. You load
the previously recorded data and may save it as a video file (.avi) or take a snapshot (*.jpeg) of the camera
Open Data File Open folder to access saved data in default folder of format:
When a file is loaded into the software, the menu bar changes its appearance as seen below.
video players.
corresponding text.
Play Speed You can change the replaying speed by dividing its
Read Me SeeSV-S205
The graph below the beamforming screen together with bottom part of the pane offers an options for
Power Spectrum
By default, the window is open on the page of Power Spectrum.
Sound analysis
The frequency limits for band pass filter can be adjusted with step of 25 Hz. You can do so
either by typing into or stepping through the indicators under Band Pass Filter option.
The other approach let you interact with the Power Spectrum cursors and you can drag
them along the frequency scale as you wish. The yellow line shows the power spectrum
You can save and open your favourite pre-sets as well. Unique folder named
“Setting Preset” will be created and all preset files will be kept there unless you manually
Axes of graphs can be arbitrarily changed by double clicking the lowest or highest number,
it will highlight all digits and you can directly enter a numerical value. Clicking once on the
Time Signal
In the time signal window, you can see time course of sound pressure data measured by a microphone in units
of Pascal (Pa). It is good to note that the time data are not band-passed by the filter specifications and whole
Level Trend
Captures history of beampower that is basically a beampower maximum of sound event captured at
each time frame. This window is especially useful when you want to check the beampower threshold from
which the beamforming is displayed. The horizontal red dashed line represents the threshold
value.
1/3 Octave
In order to see averaged frequency information over 1/3 octave bands, choose 1/3 Octave option. This window
is not interactive as Power Spectrum though. The center of each frequency band is noted in the table below in
units of Hz.
1 2 2 3 4 5 6 8 1 1 1 2 2 3 4 5 6 8 1 1 1 2 2 3 4 5 6 8 1
6 0 5 1 0 0 3 0 0 2 6 0 5 1 0 0 3 0 0 2 6 0 5 1 0 0 3 0 0
. 0 5 0 0 0 5 0 0 0 0 0 5 0 0 0 5 0 0 0 0 0
5 0 0 0 0 0 0 0 0 0 0 0 0
0
Now we get to the core of how beamforming data are displayed. The bottom indicators and controls take care
of sound representation and together with the highlighted controls on the right, it gives you the tools to
analyse and view the sound in form of beamforming map overlapping the optical camera video. If a sound
event exceeds certain threshold level, the calculated beampower map is superimposed on the video frames in
Sound analysis
Beampower
The 2D colourful surface map you see is beampower, i.e. amount of sound pressure acquired in the
corresponding direction. This quantity can be also interpreted as sound in corresponding position on the video
frame exceeding certain threshold. The video frame resolution having 640x480=307,200 points is given by the
optical camera which shoots 25 frames per second. The beampower map is defined by 40x30=1200 points on
the 2D video frame which is also calculated 25 times a second, therefore acquiring continuous smooth video.
in time.
Threshold
As you have already seen in the Level Trend window, the threshold selects the
The threshold value in decibels (dB) can be changed either by typing in to the
numerical control, or dragging the yellow dot along the threshold knob. The
minimum and maximum levels of the knob can be changed by double clicking
the minimum or maximum in recording mode, but they are fixed in the review
mode.
Image Range
As the threshold decides what lowest limit it shows on the sound image, the
range between the smallest and largest value on the beamforming map that
is seen on the screen is selected by this knob. Auto selection defines the range
user.
defines the lowest value where Image Range is does not fit in
You have the capability of setting the image range manually after clicking
check box. The function makes a big difference, since the peaks
are not anymore automatically marked red, but you can relate the static color
scale to defined static decibel scale. Supposing you set your Image Range in
the way that the lowest level would be below the threshold, it will take the
threshold value as the lower limit, but it will assign a color corresponding to
the decibel scale and not the lowest colour as in the default auto mode.
Below you may compare how approximately the difference between manual and automatic image range is
projected into the display method. Two threshold cases are demonstrated for each mode.
Under manual image range, you can see that each level has corresponding color at all times. If the threshold
is higher than the minimum beampower value, it cuts the lower edge off.
Under automatic image range, the color scale assigned that the color varies according to its current beampower
dynamic range. The threshold cuts the lower edge off again and does not change the color dynamic scale.
Image Average
In order to capture impulsive sound events, image average extends the display
hold time of beampower map overlaid on the video screen. You can either
will be visible only for the one frame. No average option may be good an
indicator realistic duration of sound event, also excellent for fast moving
at most every 2 time frames (2*40 ms) and any integer multiple n higher then
2 (for n>2; n*40 ms).The highest detectable frequency of sound event is thus
approx. 12 Hz, i.e. sound event occurs at most 12 times a second. This is due
Exponential Average holds the beampower image on the screen for defined
choose a number on Image Average scale in between 1 and 49. This option
Linear Average takes the sum of all beampower frames and divides it by
number of frames. This ratio defines how rapidly the 2D beampower map will
fade out. Linear average is useful for displaying stationary sound sources,
where we want to keep the color map information for longer on the screen to
get complex map of all sources. For longer measurements, the number of
averages will be so large that later sound events will not be displayed on the
To reset number of linear averages, you hit the reset button to start
Display Configuration
Overlay Mode
Gray - this mode provides less prominent indices, but can help you to
better visualize sound sources in colourful background. The maximum
Binary - adds color pixels to the sound region in the way that it creates
distoriton effect which is good to use where colour modes fail to be a
good indicators.
Transparency
Beside changing the patern colors, transparency is usually needed to see what sound source behind the 2D
beamforming map is generating the noise. The value is adjustable from 0 (no transparency) to 1 (100%
Mirror effect
Image Calibration
If you experince inaccurate sound detection indicated by a beamforming map not
pointing on the actual sound source as in the picture on the right, the sound camera
suffers by a bias error that can be corrected for by the Image Calibration.
2. To calibrate:
axis.
b. or you can click button, and
If focusing the lens did not improved the image, there is low possibility of having Hint: The lens is attached to a
fixed screw, thus if you keep
optical lens or digital camera sensor turning anticlockwise all the
way, you unscrew the lens
covered by an obstacle from the inside. completely. Be careful when
turning clockwise and stop
Here you can see the the optical lens when you start to feel large
strain.
disassembled.
6. Other controls
Under the pane , you find general options for setting additional parameters.
Path
By this option, you may change the default location where all
This will also load files from the defined folder, which by
All newly saved files except pre-sets will have prefix defined in
Sound Camera
Microphone Numbering.
Depending on your dynamic range, you can set Gain (dB) from
Dynamic range
The whole available range is not accessible at once through our software, because it has been divided into 4
sub-ranges for convenience of focusing on certain dynamic range. The sub-ranges’ lower and upper limit can
Firmware update
Keeps your sound camera firmware updated or fixes various
about termination of
SeeSV software and therefore your current task, so make sure you
have saved all data before proceding. Also, make sure your sound
C:/Program_Files/SMI/SeeSV-S205/Firmware/SeeSV-S205 x.x.x_yymmdd.scfw
Specifications
Microphone Array
Microphone Type Digital MEMS Microphone
Number of Microphones 30
Microphone Sensitivity -26 dBFS, at 94 dB SPL
Array Diameter 406 mm
Frequency Range (Full) 350 to 12,000 Hz
Frequency Range (Recommended) 2,000 to 10,000 Hz
Measurement Distance 0.2 to 5.0 m (Recommended)
Weight 1.97 kg
Data Acquisition and Processing
Sampling Rate 25.6 kS/s
Image Update Rate 25 FPS
Imaging Algorithm Beamforming (delay and sum)
Image Ranging Automatic/Manual
Environmental Condition
Operation Temperature -20 to 50°C
Humidity 10 to 85 % RH
Microphone Numbering
30 channel MEMS Microphone position
Shortcuts
Key Action
Ctr+1 Display “Microphone Time Signal” graph
Ctrl+2 Display “Microphone Power Spectrum” graph
Ctrl+3 Display “Level Trend of Beampower” graph
Ctrl+4 Display “1/3 Octave Band Level” Graph
Left Cursor Move first cursor to left at time signal graph of review mode
Right Cursor Move first cursor to right at time signal graph of review mode
Up Cursor Increase “Image Threshold”
Down Cursor Decrease “Image Threshold”
Ctrl+H Contect help
Ctrl+W Quit Sound Camera Software