Nemo Voice Quality Guide 7.20

Voice Quality Guide

Version 7.20

© 2013 by Anite Finland Ltd. All rights reserved. This manual, as well as the software described in it, is furnished under license and may only be used or copied in accordance with the terms of such license. The information in this manual is intended for informational use only and is subject to change without notice. Anite Finland Ltd assumes no responsibility or liability for any errors or inaccuracies that may appear in this user manual. Except as permitted by such license, no part of this publication may be reproduced or transmitted in any form or by any means, electronic, mechanical, recording, or otherwise, without the prior written permission of Anite Finland Ltd. Windows®, Windows® XP, Windows® Vista, Windows® 7, Outlook®, and Internet Explorer are registered trademarks of the Microsoft® Corporation in the United States and other countries. MapInfo® and MapX® are registered trademarks of MapInfo® Corporation. CDMA 2000® is a registered trademark of the Telecommunications Industry Association (TIA -USA). The license management portion of this Licensed Technology is based on SentinelLM* © 1989-2003 Rainbow Technologies, Inc. All rights reserved. POLQA® is a registered trademark of OPTICOM GmbH. Used by permission. © 2011 by the POLQA Coalition of OPTICOM GmbH, Germany - SwissQual AG, Switzerland - KPN, The Netherlands - TNO, The Netherlands.

Revision 7.20.00, Last edited December 2013

CONTENTS NEMO VOICE QUALITY GUIDE

4

IMPORTANT

5

VOICE QUALITY SYSTEM DESCRIPTION 6 MOBILE-TO-FIXED LINE

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MOBILE-TO-MOBILE

6

MUTE CALL DETECTION

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NEMO OUTDOOR VOICE QUALITY – NEMO MEDIA ROUTER 9 SETTING UP THE SYSTEM

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NEMO OUTDOOR VOICE QUALITY – TERRATEC SOUND CARD 15 NEMO VOICE QUALITY – TERRATEC DMX 6FIRE USB TECHNICAL DATA INSTALLING THE DMX 6FIRE USB DRIVER IN WINDOWS XP

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REQUIRED HARDWARE WITH TERRATEC DMX 6FIRE USB 2.0 SOUND CARD 24 TerraTec DMX 6Fire USB 2.0 Sound Card 24 Nokia N85(US)/N95(US)/N96(US)/6720(US)/N97(US)/C5/ C7-00/500/Sony Ericsson Xperia arc S 26 Nokia 3500 and 612X 27 LG CDMA/VX8350/VX8360/Huawei C7600 (EVDO) 29 Datang DTM 8120/ Leadcore LC 8130E 31 Samsung SGH-U800 34 TERRATEC DMX 6FIRE SOUND CARD WITH NEMO OUTDOOR MULTI 35

NEMO OUTDOOR VOICE QUALITY – MAYA44 USB SOUND CARD 37 TECHNICAL SPECIFICATIONS

37

INSTALLING THE MAYA44 USB CONNECTIVITY DRIVER 39 MAYA44 SOUND CARD WITH TERRATEC DMX SOUND CARD AND NEMO OUTDOOR MMAC3 MULTI 42

MAKING VOICE QUALITY MEASUREMENTS MOBILE-TO-MOBILE VQ MEASUREMENTS

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MOBILE-TO-FIXED-TO-MOBILE VQ MEASUREMENTS

49

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Ne mo Vo ice Qua l i ty Gu id e

NEMO VOICE QUALITY GUIDE Nemo Voice Quality is an option for the Nemo Outdoor measurement system. Nemo Outdoor supports mobile-to-mobile and mobile-to-fixed-to-mobile measurements. The measurements enable the assessment of the quality of voice during voice calls as perceived by end-users. The measurement is based on the ITU-T recommendations P.862.1, P862.2, and P863 and it produces a voice quality score that is mapped on an EMOS (Estimated Mean Opinion Score) scale. Also measurements based on the WB-AMR codec are supported. Nemo Outdoor supports voice quality measurements with three options: with the TerraTec DMX 6Fire USB sound card, with the Maya44 USB sound card, and with Nemo Media Router running on Android-based smartphones. The Nemo Voice Quality system with the Nemo Media Router consists of Nemo Outdoor, 1-6 Android-based smartphones, and optionally Nemo Outdoor Multi. It is supported with the Nemo Outdoor platform, and it supports the USB 2.0 audio system, four channels, and the GSM, WCDMA, CDMA2000, and TD-SCDMA technologies. For a list of supported terminals, please see the Voice Quality data sheet. The Nemo Voice Quality system with the TerraTec DMX 6 Fire USB sound card consists of Nemo Outdoor, 1-4 mobiles, the TerraTec sound card, and optionally Nemo Outdoor Multi. It is supported with the Nemo Outdoor platform, and it supports the USB 2.0 audio system, four channels, and the GSM, WCDMA, CDMA2000, and TD-SCDMA technologies. For a list of supported terminals, please see the Voice Quality data sheet. The Nemo Voice Quality system with the Maya44 sound card consists of Nemo Outdoor, 1-4 mobiles, the Maya44 sound card, and optionally Nemo Outdoor Multi. If you combine the TerraTec and Maya44 sound cards, you can connect up to 6 test terminals with Nemo Outdoor Multi. With all options it is possible to perform two types of voice quality measurements: mobile-tomobile and fixed-to-mobile measurements. In mobile-to-mobile measurements, one terminal is calling another and the mobiles send a test sample. These measurements present the combination of the uplink quality of the transmitting terminal and the downlink quality of the receiving terminal. In mobile-to-fixed-to-mobile measurements, a terminal calls a fixed number (PSTN) that is connected to a Nemo Server with the Audiotest option. These measurements present the downlink quality of the terminal at the Nemo Outdoor end, the uplink quality of the terminal at the server end, and the downlink quality of the receiving terminal.

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IMPORTANT Please read the instructions below before starting voice quality measurements. ♦

A sound card should be connected to a USB 2.0 port. Connecting the device to a USB 3.0 port may cause missing MOS scores and distortion in audio, which decreases the MOS score.

♦

If terminals report lower than expected MOS values in Voice Quality measurements, it may result from too high CPU usage on the computer. First of all, an Intel® Core Duo processor T2500 2.00GHz or higher is required for voice quality measurements. If you suspect that the reported MOS values are too low and you are using multiple terminals and a scanner simultaneously, try the following. First, if you have many applications running on the laptop, try closing the unnecessary ones. Next, disconnect the scanner and try testing with a single terminal to see if the MOS values improve. Proceed with testing with 1-4 terminals without using the scanner simultaneously for optimal MOS results.

♦

If a sound card is used as standalone hardware connected to a laptop, the test handsets must not be placed in close proximity to the sound card. This applies especially with GSM.

♦

Cigarette lighter chargers must not be used with Multi Lite when performing voice quality tests. Chargers cause interference to audio and decrease audio quality. If separate charging is required, AC/DC chargers should be used.

♦

With voice quality tests, Nokia 500, 6720, C5-00, C5-00.2, C5-03, C5-03 LAT, and C504AWS handsets must be charged with an AC/DC 110/ 220V charger.

♦

Wi-Fi must be turned off from the laptop. When stationary tests are performed (e.g., in an office), the Wi-Fi base station must be not be located in close proximity to the measurement system.

♦

Turn off all sounds from the test handsets. From Windows OS, select No sounds as the system Sound Scheme.

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VOICE QUALITY SYSTEM DESCRIPTION MOBILE-TO-FIXED LINE When Nemo Outdoor calls a fixed line that is connected to Nemo Server, the server answers the call and Nemo Outdoor/ sound card audio module starts sending the configured test sample. The server is already configured to use the same sample. After the first sample is received, the server sends in turn the reference sample to Nemo Outdoor that records it and calculates the voice quality score (MOS DL). Server side calculates scores for received samples in parallel to the testing procedure, and opens a measurement file and stores the result there. Along with the test samples, short synchronization tones are sent. They are used for synchronization purposes and do not affect the score. The synchronization tone is always sent from the side which sends the audio sample. For example, with mobile-to-fixed-line testing synchronization tone is sent first from the mobile /sound card audio module to the server. After receiving the test sample, Nemo Outdoor sends again the reference sample to the server, the server records it and calculates the score (MOS UL), and so on until the call is disconnected. The measurement file on server side is closed when the call is disconnected and FilecloseTimeout seconds is elapsed from disconnection (default 200s). The test goes on alternating until a call drops, or until Nemo Outdoor or Nemo Server ends the call. If the server does not detect the call disconnection, for example, it cannot detect the busy tone because the country code is wrong, the server does not hang up the line. In this case, use NSM to stop the VQD service and change the country code. If it does not help, consult the Nemo Server manual for further instructions.

MOBILE-TO-MOBILE The same logic is used also in mobile-to-mobile testing as with mobile-to-fixed line. ♦

PSTN lines of Nemo Server must be calibrated before use.

♦

Busy call detection wizard of Nemo Server must be done before use.

MUTE CALL DETECTION Sometimes end users are experiencing random audio muting during phone calls. When a call is answered, only silence can be heard. When audio is lost during a phone call, usually it remains silent until the end of the call. These calls can be seen also by observing the audio quality MOS score as it drops significantly during silent calls. The mute call detection functionality in Nemo Outdoor makes it easy to analyze phone calls where low MOS score is caused by a silent or muted call.

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A new parameter called “Audio reception state” is displayed real-time and it indicates if audio is present or not. During RX mode the voice quality measurement system is monitoring the energy of the received signal continuously for each received audio frame and write audio quality signal status to the measurement file. If the energy of the received signal drops below specified threshold for specified amount of time, the audio reception state is set to “Not detected”. If the energy of the received signal goes above specified threshold for specified amount of time, the audio reception state is set to “Detected”. Threshold values are fixed. Audio reception state can be seen in different views e.g. with line graph. Detection starts when phone audio mode is in reception (RX) mode. Synchronization tone can be seen at the beginning of the RX mode followed by the actual received audio sample file. Depending on the reference sample file it is normal that during the reception of the received sample file, audio is not necessarily detected all the time. E.g. the case sample file includes a pause in audio longer than threshold value used for the detection.

Figure 1. Audio RX mode. Normal situation.

Audio lost

Figure 2. Silent call. Audio not detected.

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Audio lost. Muted call

Figure 3. Muted call. Audio lost during call. DL MOS scores seen as low as 1.49MOS.

Figure 4. Audio gap. Lost audio frames during RX mode.

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NEMO OUTDOOR VOICE QUALITY – NEMO MEDIA ROUTER This chapter will describe the steps for setting up and configuring the voice quality system using Nemo Media Router. Handsets ordered with Nemo Media Route come preinstalled from Anite Finland. If you wish to use your existing Nemo Outdoor test terminals, please install the Nemo Media Router first. This feature is currently supported on the following terminals: •

Samsung Galaxy SIII (GT-I9305)

•

Samsung Galaxy S4 Mini (GT-i9195)

SETTING UP THE SYSTEM Requirements: •

Nemo Handy firmware

•

AutoTether application must be removed (applies to existing Galaxy SIII handsets delivered with Nemo Outdoor/ Nemo Invex)

•

Device USB port must be configured to Memory Card Mode (MTP)

1. If the AutoTether tool is installed on the device, remove it via Applications manager. Select Settings | Applications manager.

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2. Select AutoTether and then tap Uninstall. After uninstallation, reboot the device.

3. Configure the USB port to memory card mode. Open the dialer on your mobile and enter *#7284#.

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4. Select Qualcomm USB Settings.

5. Select MTP. ♦

Note that it may take a while before computer recognizes device after USB port mode has been changed

6. Next install the Nemo Media Router on the mobile (if not preinstalled by Anite Finland). Connect the device to your laptop with a USB cable. Copy the NemoMediaRouter.apk file on your device in the Nemo folder.

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7. Select Apps | My files on your device and browse to the Nemo folder. Tap the NemoMediaRouter.apk file.

8. Select Install. When the installation is finished, select Open.

9. After the Nemo Media Router application has started, restart the device. 10. When the device has restarted, connect the device with Nemo Outdoor/Nemo Invex as instructed in the Dial-up Networking Setup Guide included in the Nemo Outdoor product package.

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11. When the device is connected with Nemo Outdoor/Invex, the Nemo Media Router application is started automatically. If the Nemo Media Router does not appear, start the application manually, reboot the device, and try again adding the device to Nemo Outdoor. 12. The Outdoor option should be selected as the USB configuration. The Mass memory and Mass memory ADB options are not needed with Nemo Outdoor.

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13. In the Device Configuration – Voice quality page, select the Nemo Media Router and define the correct COM port. Click OK. The device is now ready.

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NEMO OUTDOOR VOICE QUALITY – TERRATEC SOUND CARD NEMO VOICE QUALITY – TERRATEC DMX 6FIRE USB TECHNICAL DATA •

USB 2.0 audio system

•

1 microphone input with gain control (combo XLR / 6.3 mm jack)

•

48V phantom power

•

-20 dB pad switch

•

1 instrument input with gain control (6.3 mm jack)

•

4 analogue inputs (cinch)

•

1 phono input (RCA cinch) with RIAA equaliser and gain control

•

6 analogue outputs (cinch)

•

Stereo to 5.1 Surround Expander

•

1 headphone jack (6.3 mm) with separate volume controller

•

1 optical digital input/output (TOS Link)

•

1 coaxial digital input/output (cinch)

•

1 MIDI interface In/Out (5-pin DIN)

•

24 bit / 192 kHz A/D converter with 114 dB (A) SNR* (input 1/2)

•

24 bit / 192 kHz A/D converter with 105 dB (A) SNR* (input 3/4)

•

24 bit / 192 kHz D/A converter with 114 dB (A) SNR* (outputs 1-6)

•

WDM driver for Windows XP SP2 / Vista

•

ASIO 2.0 support

•

Control panel for Windows XP SP2 / Vista

•

System Requirements o

2.0 GHz Intel or AMD CPU

o

Windows XP SP2 or Windows XP X64 or Windows Vista or Windows Vista X64

o

512 MB RAM

o

1 free USB 2.0 port

o

CD/DVD drive

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•

∇

Scope of delivery o

DMX 6Fire USB

o

Power supply

o

USB cable 1.8m

o

1 Adaptor (6.3mm  3.5mm mono)

o

1 Adaptor (6.3mm  3.5mm stereo)

Setting up the system This chapter will describe the steps for setting up and configuring the voice quality measurement system. Please install the Nemo Outdoor software and the DMX 6Fire USB driver first. ♦

Note that it is very important for the laptop to fill the hardware requirements stated above; the laptop needs to have Core Duo Processor 2.0 GHz or AMD PCU, or more powerful.

INSTALLING THE DMX 6FIRE USB DRIVER IN WINDOWS XP ♦

Do not connect the USB connectivity cable to your PC until the driver installation is complete. However, power can be switched on in the sound card. 1. Before you start, ensure that your Windows XP version is up to date. Right-click the My Computer icon and choose Properties from the context menu. The System Properties dialog appears, in which you can check your current service pack version. You can also enter the System Properties dialog by going to Start | Settings | Control Panel | System. It is important for Windows XP Service Pack 2 (SP2 for short) or Windows Vista to be installed on your computer. If this is not the case, please contact Microsoft (www.microsoft.com) to update your system. For Windows, this is generally free of charge. 2. The driver installation file is found on the Nemo Outdoor installation CD in Nemo Outdoor\Drivers and Specific Softwares\TerraTec DMX 6Fire USB sound card driver. Please note that this specific version of the driver needs to be used.

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3. Double-click on the installation file. The installation wizard will now display its welcome message.

4. The default destination for the installation is specified in the following window. If you prefer another folder, select Browse... and choose the corresponding directory. Then, click Install.

5. You can disregard the safety warning without concern. Click Continue Anyway to continue.

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6. The driver is now installed in the system, and as soon as the message below appears, you can connect the DMX 6Fire USB to your computer's USB 2.0 port using the cable provided. If Nemo Multi hardware is used, sound card can be connected also to the Multi unit. Windows XP will automatically recognize the device as new hardware and open the driver installation dialogue.

7. The Windows Found New Hardware Wizard asks what driver to use for the new hardware component. You do not have to search for the driver online. The next window asks about the driver for the DMX 6Fire USB hardware. Next, select Install the software automatically [Recommended] and confirm with Next. 8. Then, just to be safe, a new system restore point is set. Nothing to be concerned about— this is a standard precaution.

9. This concludes part 1 of the installation, so click Finish.

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10. This returns you to the installation wizard, as only the drivers for the USB controller have been installed; now, the drivers that make the controller a USB audio device are installed. Here, too, select Install the software automatically to install the second batch of drivers. 11. Again, you can safely ignore the message that the software did not pass the Windows Logo test. 12. Click Finish to complete the installation of the drivers. 13. Once the drivers have been installed, the DMX 6Fire USB should appear in the device manager with the following entries. Go to Start | Control Panel | System | Hardware and click the Device Manager button.

14. After installation remember to check that the GAIN1 and GAIN2 controls are adjusted to the minimum and the PAD switches are in the OFF position in the TerraTec Sound Card front panel.

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15. Note that the volume level of the test terminals needs to be adjusted according to the table below during a voice call: Terminal

Volume level

Nokia 3500, 6120, 6121, N85, N85 US, N95, N95 US, N96, N96 US, N97, N97US

8 / 10

Nokia 6720(US), C5, C5-03, C7-00, 500

10/10

LG C680

3/8

LG KX206, C676

4/7

LG VX8350, VX8360

8/8

Datang DTM 8120

2/5

Huawei C7600

7/7

Leadcore LC 8130E

2/5

Samsung SGH-U800

3/7

Sony Ericsson Xperia arc S (LT-18i)

6/6

16. Start TerraTec DMX 6Fire USB Control Panel from Start | TerraTec | DMX6FireUSB.

17. From the control panel set the settings as in the screen shots below. Remember to also pay attention to the bottom part of the panel.


18. Input settings: •

Set Input ½ and Input ¾ levels to +5dB

•

Set the Waveplay ½ and Waveplay ¾ levels to -5dB, except •

with Datang and Leadcore: -13dB

•

with Samsung SGH-U800: -5db -> -10db

•

with Sony Ericsson Xperia arc S: -24dB

•

Unset all routing buttons at the bottom of the panel except set Waveplay 1/2 routing to 1/2 and Waveplay 3/4 routing to ¾

•

Note that the volume on the Datang 8120 and Leadcore LC 8130E needs to be adjusted to level 2 (2/ 5) during a voice call. With the Datang 8120 and Leadcore LC 8130E terminals the TerraTec control panel settings are different from other terminals. If the system is used simultaneously with other terminals, unset the LINK buttons below the input/waveplay settings and you can change waveplay settings by channel. This way you can adjust the waveplay settings separately for the Datang terminal without affecting CDMA or GSM/WCDMA terminals.

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19. Output settings: •

Set all Output levels and Master to 0dB

20. From Miscellaneous | Asio | Asio Latency, select Maximum (8.0ms 384 samples) and close the Asio Latency window. Now you can start Nemo Outdoor. You can leave the DMX control panel open or close it. ♦

Note that if there is a system that measures acceleration in the laptop and which causes the hard disk to stop when jolted, it should be turned off. Otherwise there may be breaks in the measurement files. 21. With the Lenovo T61 laptop you can turn this system off by going to Start | ThinkVantage Productivity Center and selecting Security | Protection and Recovery | Protect my hard-drive [ ] Enable Active Protection System.

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22. Next, in Nemo Outdoor add a terminal by going to Measurement | Add New Device | Phone In the Phone Properties dialog select the two ports assigned to the mobile as Trace Port and Modem Port. You can check the ports from the Phone and Modem Options dialog (Start | Settings | Control Panel | Phone and Modem Options, Modems tab). Select the port with the bigger number as the modem port and the port with the smaller number as the trace port, e.g., COM100 as trace port and COM101 as modem port. Next, select the Sound card channel item. You will see a list of numbered options from channel 1 onwards. Select the channel based on to which LINE IN and LINE out jack you connected the audio cable in the sound card. You do not need to select anything in the dial-up connection fields unless you are also performing data transfers. In this case please refer to the Nemo Outdoor Dial-Up Networking Setup Guide for further information.

23. Select Measurement Properties | Voice number | Properties. 24. Click OK in the Measurement Properties dialog. You are now ready to perform voice quality measurements. ♦

Note that you need to add and configure each mobile separately. If you have several mobiles, make sure that you select the correct channel for each mobile.

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24

♦

Note that if you are using more than two mobiles for voice quality measurements, Nemo Outdoor Multi is needed. Please refer to the Nemo Walker and Multi Lite User Manual for information on the Nemo Outdoor Multi system.

♦

Note that when you are using a separate 300W inverter, it is recommended that the computer and sound card be connected to the inverter prior to starting measurements. For example, if the computer is connected to the inverter during a measurement, it is possible that it causes a temporary supply voltage disconnection. This further risks an interruption in the reception of MOS values.

REQUIRED HARDWARE WITH TERRATEC DMX 6FIRE USB 2.0 SOUND CARD ♦

Note that the USB sound card can handle the maximum of four terminals simultaneously

♦

Note that only one USB sound card can be connected to the computer at a time

♦

Do not connect the USB connectivity cable to a USB 3.0 port as this may distort the audio sample.

♦

Note! If terminals report lower than expected MOS values in Voice Quality measurements, it may result from too high CPU usage on the computer. First of all, an Intel® Core Duo processor T2500 2.00GHz or higher is required for voice quality measurements. If you suspect that the reported MOS values are too low and you are using multiple terminals and a scanner simultaneously, try the following. First, if you have many applications running on the laptop, try closing the unnecessary ones. Next, disconnect the scanner and try testing with a single terminal to see if the MOS values improve. Proceed with testing with 1-4 terminals without using the scanner simultaneously for optimal MOS results.

TerraTec DMX 6Fire USB 2.0 Sound Card Product Code

Product Name

Configuration

100256-01

Terratec DMX 6Fire USB 2.0 sound card

1) 1 x Terratec DMX 6Fire USB 2.0 sound card with required accessories including: -Terratec DMX 6Fire USB 2.0 sound card -USB A to B data cable -220V power supply -Terratec DMX 6Fire USB driver (427001-00) -Inverter Mascot 2285 12V/ 220V 300W for sound card and computer. ELFA 69-715-27 (499048-02) -Inverter Mascot 9984 12V/ 220V 150W for sound card. ELFA 69-717-09 (499048-05) -PWR Cable for Inverter (4m) (499048-03) -Extension cord for sound card ELFA

♦

NOTE! Use this code only when voice quality system is sold with Nemo Outdoor Multi (100149-00 or 10024300) or without multi hardware.

♦

With Nemo Multi Lite use code 100318-00


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42-223-76 (419009-00) -Flat head screw driver 3,5mm ELFA 80-361-47 (499048-04) -Terratec Cover 1180-p-030 (42700101) -Terratec Strain Relief 1180-p031(427001-02) -Line Mic4 adapter (427000-01)

♦

Note that when used in a vehicle, the sound card should only be used with the two power inverters provided by Anite Finland. The Mascot 2285 inverter is meant to be used with the sound card and the laptop. The Mascot 9984 inverter is only meant to be used with the sound card. It is not recommended that other devices be connected to it to ensure sufficient power supply. In case of overload the user risks receiving erroneous measurement results.

♦

Note that the GAIN1 and GAIN2 controls need to be adjusted to the minimum, and the PAD switches need to be in the OFF position in the TerraTec Sound Card front panel.

At the back of the TerraTec Sound Card:

•

The power cable is connected to the POWER connector and the other end of the power cable is connected to the inverter.

•

The A to B USB cable is connected to the USB connector, and the other end of the cable is connected directly to the laptop.


♦

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Note that the A to B USB cable should be connected directly to the laptop! Do not connect the cable to the multi hardware (if used).

Nokia N85(US)/N95(US)/N96(US)/6720(US)/N97(US)/C5/ C7-00/500/Sony Ericsson Xperia arc S Product Code

Product Name

Configuration

100257-02

Nemo Outdoor Voice Quality with Nokia N95, N95US, N96 and N96US

Includes: 1) 1 x RCA cable extension leads (male-female) (42004600) 2) Clicktronic audio cable (OD0100-03) included in the terminal sales package.

100257-03

Voice Quality with Nokia N85, N85US, N97, N97US, 6720, 6720US, C5, C7-00, 500, and Sony Ericsson Xperia arc S.

Includes: 1) 1 x RCA cable extension leads (male- female) (42004600) 2) 1 x Clicktronic audio cable (OD0100-03)

The yellow audio connector is attached to the Line mic adapter (1) and the white audio connector to the red RCA lead. The red RCA lead will be connected to LINE IN X and the black RCA lead to LINE OUT X connector. Note that the red audio cable (CA-75U) connector will remain unused.


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You can also connect the Line mic adapter directly to the TerraTec sound card, as shown below. In this case the white audio connector is directly connected to the applicable Line In connector in the sound card, and the red audio connector to the line mic adapter.

♦

Note that the volume on the Nokia N85/N95/N96/6720/N97 needs to be adjusted to level 8 during a voice call.

Nokia 3500 and 612X Product Code

Product Name

Configuration

100258-01

N612x/3500 audio cables/ adapter package. Nokia 6120, 6121 and Nokia 3500.

Includes: 1) 1 x RCA cable extension leads (male-female) (42004600) 2) 1 x 2.5mm 4- pin- RCA male audio cable (420042-00) 3) RCA male audio cable (420042-00)

The yellow audio connector is attached to the Line mic adapter and the white audio connector to the red RCA lead. The red RCA extension lead will be connected to the sound card’s LINE IN connector and the black RCA extension lead to the LINE OUT connector.


You can also connect the Line mic adapter directly to the TerraTec sound card, as shown below. In this case the white audio connector is directly connected to the applicable LINE IN connector in the sound card, and the yellow audio connector to the Line mic adapter.

♦

Note that the volume on the Nokia 612X and 3500 needs to be adjusted to level 8 during a voice call.

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LG CDMA/VX8350/VX8360/Huawei C7600 (EVDO)

♦ ♦

Product Code

Product Name

100259-01

CDMA audio cable/adapter package for LG C680, LG C676, LG KX206, LG KX256, LG VX8350/VX8360 and Huawei C7600.

Configuration

Includes: 1) Audio adapter plug 2.5mm3.5mm angle (426000-00) 2) Audio cable 3.5mm 2X RCA male 4260543 (42004500) Note that the volume on the Huawei C7600 terminal needs to be adjusted to maximum level (7/7) during a voice call. Note that the volume on the LG VX8350 and VX8360 terminals needs to be adjusted to the maximum (8/8) during a voice call. The red audio connector is directly connected to the applicable LINE IN connector in the sound card, and the white audio connector to the Line mic adapter (colors visible on the inside of the connectors).


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Datang DTM 8120/ Leadcore LC 8130E Product Code

Product Name

100260-01

Datang DTM 8120/ Leadcore 8130E audio cable/adapter package.

Configuration

Includes: 1) Audio adapter plug 2.5mm3.5mm angle (426000-00) 2) Audio cable 3.5mm 2X RCA male 4260543 (42004500) The red audio connector is directly connected to the applicable LINE IN/ANALOG IN connector in the sound card, and the white audio connector to the Line mic adapter which is connected to the sound card LINE OUT/ANALOG OUT connector(s) (colors visible on the inside of the connectors). Below you see examples for both the TerraTec and Maya sound cards.


You can also connect the Line mic adapter directly to the sound card.

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♦

Note that the volume on the Datang 8120 and Leadcore 8130E terminals needs to be adjusted to level 2 (2/ 5) during a voice call. With the Datang 8120 and Leadcore 8130E terminals the Terratec control panel settings are different from other terminals. If the system is used simultaneously with other terminals, unset the LINK buttons below the input/waveplay settings and you can change waveplay settings by channel. This way you can adjust the waveplay settings separately for the Datang terminal without affecting CDMA or GSM/ WCDMA terminals.

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Samsung SGH-U800

♦

Product Code

Product Name

100259-02

Nemo Outdoor Samsung audio cable/adapter package for the following Samsung models: SGH-U800

Configuration

Includes: 1) Audio adapter plug 2.5mm3.5mm angle (426000-00) 2) Audio cable 3.5mm 2X RCA male 4260543 (420045-00) 3) Samsung S20-Pin Multi-Adapter 2.5mm AAET554CBEBSTD (419004-01) Note that the volume on the Samsung SGH-U800 terminal needs to be adjusted to 3 / 7 during a voice call. The white (see inside the connector) audio connector is attached to the Line mic adapter and the red audio connector to the red RCA lead. The red RCA extension lead will be connected to the sound card’s LINE IN connector and the black RCA extension lead to the LINE OUT connector.


You can also connect the Line mic adapter directly to the TerraTec sound card, as shown below. In this case the red audio connector is directly connected to the applicable LINE IN connector in the sound card, and the white audio connector to the Line mic adapter.

TERRATEC DMX 6FIRE SOUND CARD WITH NEMO OUTDOOR MULTI Below you can see a graph illustrating the Nemo Outdoor Voice Quality system with the TerraTec DMX 6Fire Sound Card and with Nemo Outdoor Multi.

♦

Note that with Nokia terminals, after initial connection to a USB port, the terminal will always have the same COM ports.

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♦

Note that with Multi and Voice Quality measurements, it is recommended that you attach a label with a number from 1-6 on each Nokia terminal to denote which holder it should be connected to in Nemo Outdoor Multi. Particularly in Voice Quality measurements it is important that the terminals should always be connected to the same holder in Nemo Outdoor Multi to ensure reliability in audio measurements.

♦

If Nemo Multi Lite hardware is used, place the terminal(s) to holder(s) screen facing down.

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Note! If terminals report lower than expected MOS values in Voice Quality measurements, it may result from too high CPU usage on the computer. First of all, an Intel® Core Duo processor T2500 2.00GHz or higher is required for voice quality measurements. If you suspect that the reported MOS values are too low and you are using multiple terminals and a scanner simultaneously, try the following. First, if you have many applications running on the laptop, try closing the unnecessary ones. Next, disconnect the scanner and try testing with a single terminal to see if the MOS values improve. Proceed with testing with 1-4 terminals without using the scanner simultaneously for optimal MOS results.

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NEMO OUTDOOR VOICE QUALITY – MAYA44 USB SOUND CARD TECHNICAL SPECIFICATIONS •

4 input channels and 4 output channels with RCA connectors

•

-10dBV input / output level (unbalanced)

•

optical S/PDIF digital output with Miniplug connector

•

headphone output (1/8" connector) with 60mW amplifier

•

ASIO 2.0 and CoreAudio support (4 inputs / 4 outputs)

•

MME / WDM support (2 inputs / 2 outputs)

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standard USB connection to PC

•

compatible with Windows 2000, XP and Vista

•

compatible with all major DJ software applications

•

compatible with all major professional audio applications

•

compact, portable and lightweight design

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Note that for voice quality measurements with USB sound card Intel® Core Duo processor T2500 2.00GHz or higher is required

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Note that it is very important for the laptop to fill the following hardware requirements: the laptop needs to have Core Duo Processor 2.0 GHz or AMD PCU, or more powerful.

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Note that the USB sound card can handle the maximum of four terminals simultaneously

♦

Note that only one Maya44 USB sound card can be connected to a computer at a time. However, sound cards from other manufacturers can be connected simultaneously to the same laptop with Maya44.

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Maya44 sound card components

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INSTALLING THE MAYA44 USB CONNECTIVITY DRIVER ♦

Do not connect the USB connectivity cable to your PC until the driver installation is complete. However, power can be switched on in the sound card. 1. The driver installation file is found on the Nemo Outdoor installation CD in Nemo Outdoor\Drivers and Specific Softwares\Maya44 USB driver. 2. Double-click on Setup.exe to start the installation. 3. Choose the language of your preference, and click OK. 4. Click on Install the driver. 5. Select I accept the agreement in the License Agreement dialog, and click on Install.

6. A dialog appears suggesting you connect the Maya sound card to a USB slot in your PC.

7. The installation wizard may prompt you to remove and reconnect the sound card. In such a case, do as instructed.

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8. Windows should automatically detect the Maya44 sound card. 9. Click Exit in the Installation finished dialog.

10. The driver installation is now finished. 11. Once the drivers have been installed, go to Start | Control Panel | System | Hardware and click the Device Manager button. The AudioDevice on USB Bus 2.8.7 and Maya 44 2.8.7 items should appear under Sound, video and game controllers, and Universal Serial Bus controllers, respectively.

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12. Next, connect your test terminals to Maya sound card. From the picture below you will see the right configuration. The line mic adapter goes to Analog Out, and the White cable to Analog in. The numbering in Analog Out and Analog in should be the same for each terminal. For example, terminal 1 will take up Analog Out 1 and Analog In 1 connectors.

13. Next, go to the installation folder and click on Maya44Panel.exe. 14. If the device is not connected, the following dialog appears.

15. If the device is connected, the following control panel dialog appears. Configure the settings as in the image below.

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16. And below the Input and Output settings clarified.

17. Hence, set the Input settings slide control to between 7 and 8, and the Output slide control all the way up as in the image. 18. Set the Monitor In 1+2 and 3+4 to mute.

MAYA44 SOUND CARD WITH TERRATEC DMX SOUND CARD AND NEMO OUTDOOR MMAC3 MULTI Below you can see a graph illustrating the Nemo Outdoor Voice Quality system with the Maya44 and TerraTec DMX 6Fire sound cards, and with Nemo Outdoor Multi or Nemo Multi Lite. Up to 6 test terminals can be connected to Nemo Outdoor Multi with this configuration.

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♦

Note that with Nokia terminals, after initial connection to a USB port, the terminal will always have the same COM ports.

♦

Note that with Multi and Voice Quality measurements, it is recommended that you attach a label with a number from 1-6 on each Nokia terminal to denote which holder it should be connected to in Nemo Outdoor Multi. Particularly in Voice Quality measurements it is important that the terminals should always be connected to the same holder in Nemo Outdoor Multi to ensure reliability in audio measurements.

♦

If Nemo Multi Lite hardware is used, place the terminal(s) to holder(s) screen facing down.

♦

Note that a Quad-core computer must be used with voice quality measurements if the number of VQ terminals is more than four. When using Nemo Outdoor Voice Quality with TerraTec and Maya44 sound cards, four VQ terminals are connected to TerraTec and two VQ terminals to the Maya44 sound card. The TerraTec sound card is located at the bottom of the Multi Lite casing. The Maya44 sound card can be placed on the middle panel as shown in the image above. During transportation it can be placed in the pouch at the bottom of the case lid.

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MAKING VOICE QUALITY MEASUREMENTS After software installations and hardware setup you are ready to start the measurements. You will receive some default test samples along with Nemo Outdoor but if you wish to use your own samples, please read the requirements below. Test sample requirements: •

8kHz, 16kHz or 48kHz sampling rate (narrowband NB, wideband WB and super-wideband SWB)

•

16-bit linear PCM

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Signal scaled to 90% of full scale

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PESQ-NB: Band-pass filtered with corner frequencies at 250Hz and 3500Hz

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POLQA-NB: Band-pass filtered with corner frequencies at 50Hz and 3800Hz

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PESQ-WB: Band-pass filtered with corner frequencies at 50Hz and 7400Hz

•

POLQA-SWB: Band-pass filtered with corner frequencies at 50Hz and 14000Hz

•

Minimum/maximum durations for sample: 4s / 10s.

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Speech activity between 60-80%

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Leading and trailing silences: 0.5s

The following samples are provided in the Nemo Outdoor setup package. They can be found in folder \Nemo Tools\Samples. •

4s_m.wav

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8s.wav

•

10s.wav

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AmEnglish_NB_m1s1_f2s2_6s.wav

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AmEnglish_SWB_m1s1_f2s2_6s.wav

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BrEnglish_NB_f1s4_m1s3_6s.wav

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BrEnglish_SWB_f1s4_m1s3_6s.wav

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German_NB_m2s1_f1s1_6s.wav

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German_SWB_m2s1_f1s1_6s.wav

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Italian_NB_f1s2_m1s2_6s.wav

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Italian_SWB_f1s2_m1s2_6s.wav

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Japanese_NB_f1s1_m1s1_6s.wav

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Japanese_SWB_f1s1_m1s1_6s.wav

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•

Russian_NB_f2s6_m1s3_6s.wav

•

Russian_SWB_f2s6_m1s3_6s.wav

NB-samples can be used in PESQ and POLQA testing. Note that samples that do not have NB or SWB in the file name are NB samples. SWB-samples can be used in mobile-to-mobile WB-AMR testing.

MOBILE-TO-MOBILE VQ MEASUREMENTS ∇

Making mobile-to-mobile voice quality measurements:

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Note that the mobile must NOT be in silent mode during measurements, as it may impair sample flow from the terminal.

♦

Remember to switch off the alert and warning tones. Beeping during a measurement will lower the score. 1. Define the voice quality settings for the first mobile, i.e., the mobile that you are calling from. 2. Open the Measurement Properties, Script dialog for the first mobile (Measurement | | Script Properties). Click on the Script Editor button to create a new script.

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3. In the Script Editor, click Add and select Voice Call from the menu.

4. In the Voice Call Properties dialog: •

Define the phone number of the second mobile, i.e., the mobile that you are calling.

•

Select Request voice call callback if you want the application to send callback command to Nemo Server using DTMF tones.

•

Select the Voice quality option.

•

Select one of the default test samples in the Reference sample filename field. Click OK.

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5. In the Script Editor dialog, double-click on the End a voice call item to define whether end command type is normal or forced. Define how many times you would like to repeat the script by editing the Repeat Script parameter.

6. Click Save and type a file name for the script. Finally click Close. 7. Define the voice quality settings for the second mobile, i.e., the mobile that you are calling to.

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8. Open the Measurement Properties dialog for the second mobile (Measurement | | Measurement Properties). 9. In the Measurement Properties – Measurement settings page, double-click the Voice Call item.


Define the phone number of the first mobile, i.e., the mobile that you are receiving calls from.

•

Select the Voice quality option

•

Select Request voice call callback if you want the application to send callback command to Nemo Server using DTMF tones.

•

Define a Prefix for the received files. The prefix will be added at the beginning of the file name of all received files.

•

Select one of the default test samples in the Reference sample filename field. Select the same file as for the other mobile. Click OK.

11. Open a line graph for viewing the voice quality data. Select Data | Line Graph | New.

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12. An empty line graph window opens. In the Parameters view type audio in the filtering field at the top of the view. Select the audio parameters, and drag them in the graph window. Each parameter is shown as its own layer in the Layers view.

13. Click the Start Recording button. Click the Start Scripts button to start the measurement. Nemo Outdoor will run through the script and make the voice quality measurements.

MOBILE-TO-FIXED-TO-MOBILE VQ MEASUREMENTS ♦

Please complete the Nemo Server installation before continuing. See Nemo Server manual for detailed instructions.

∇

Making mobile-to-fixed-to-mobile voice quality measurements: 1. Connect the test mobiles to the Nemo Outdoor measurement system.

♦

Note that the mobile must NOT be in silent mode during measurements, as it may impair sample flow from the terminal. 2. Define the voice quality settings in the Voice Call Properties dialog: •

Select one of the default test samples. Make sure that the server has the same samples in its reference sample folder (see Nemo Server installation guide for details).

•

Set the time between calls parameter to one minute.

3. If you are using scripts, click the Start Scripts button to start the measurement. Nemo Outdoor will run through the script and make the voice quality measurements.

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4. If you are performing measurements manually, select Start Voice Call from the Measurement menu or by clicking the Device Commands button. With each voice call, the voice quality measurement is run. 5. Define the voice quality settings for the mobile. •

Open the Measurement Properties, Script dialog for the mobile (Measurement | | Script Properties).

•

Click the Script Editor button to create a new script.

6. In the Script Editor, click Add and select Voice Call from the menu.

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Define the phone number of the fixed end, i.e., the server that is answering the calls and sending back the samples.

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Select the Voice Quality option.

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Select one of the default test samples in the Reference sample filename field. Please make sure that the same reference file exists also on the server. Click OK.

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8. In the Script Editor dialog, define how many times you would like to repeat the script by editing the Repeat Script parameter.

9. Click Save and type a file name for the script. Finally click Close. 10. Open a line graph for viewing the voice quality data. Select Data | Line Graph | New.

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11. An empty line graph window opens. In the Parameters view type audio in the filtering field at the top of the view. Select the audio parameters, and drag them in the graph window. Each parameter is shown as its own layer in the Layers view.

12. Click the Start Recording button. Click the Start Scripts button to start the measurement. Nemo Outdoor will run through the script and make the voice quality measurements.

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Nemo Voice Quality Guide 7.20

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