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Gnome-Nano II

14

OPERATING THE DEVICE

7

7.1

Default Configuration

Voice recorder comes complete with an integrated fully charged battery, so that you can get started
immediately using manual (active) mode or connecting it to PC. In the manual mode, the voice recorder can
only perform data recording, playback and deletion. Once enabled for the first time,

Gnome-Nano II

starts

recording with the following default settings:

•

Mono recording;

•

16 kHz sampling rate;

•

PCM 16;

•

0 dB input gain control (manual);

•

Signal input via internal microphone;

•

Password not enabled, date/time not set.

7.2

Getting Started

Before using your

Gnome-Nano II

, please do the following:

•

Connect the device to PC using a PC connection cable (see Section 6.5);

•

Install the software from the installation CD (see Section 8.2);

•

Set current date/time;

•

Configure recording options in accordance with the acoustic environment (see Section 9.4.15);

•

Enable and enter your password to protect

Gnome-Nano II

settings from unauthorized access, if

required (see Section 9.4.14);

•

Plug in external microphone, if required (see Section 6.3).

Before connecting your voice recorder to PC, make sure the PC case is effectively grounded.
Grounding is strictly recommended if you intend to connect your voice recorder to the PC and
an external signal source at the same time.

It is not recommended connecting multiple

Gnome-Nano II

recorders to the PC at a time. This

may cause the

Manager

application failures and malfunction.

Before connecting the second voice recorder you should disconnect the first one.

7.3

Audio Recording

7.3.1

Recording Hints

Voice can be recorded in the PCM* 16 or 24 bit format without compression or with A-law or μ-law
compression.

* Pulse-code modulation (PCM) is a digital representation of an analog signal that takes samples of the amplitude of the

analog signal at regular intervals.

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Содержание Gnome-Nano II

Страница 1: ...Operation Manual Gnome Nano II Ultra Small Digital Stereo Recorder STC H713 Operation Manual ...

Страница 2: ...7 812 327 92 97 Moscow Phone 7 495 669 74 40 Fax 7 495 669 74 44 You can alsoopen asupport ticket with usviaour webportal http www speechpro com support_form The manufacturer retains the right to issue amendments to this Operation Manual following any improvements to device design without any prior notification Speech Technology Center does not warrant that this Manual is error free This Manual ma...

Страница 3: ...nfiguration 14 7 2 Getting Started 14 7 3 Audio Recording 14 7 3 1 Recording Hints 14 7 3 2 Manual Recording 15 7 3 3 Volume Triggered Recording VOX 16 7 3 4 Scheduled Recording Mode 16 7 3 5 Loop Recording 17 7 3 6 Recording Duration 17 7 4 Recording Playback and Deletion 17 7 4 1 Recording Playback 17 7 4 2 Deleting Recordings 17 7 5 The RESET Button 18 SOFTWARE 19 8 8 1 Gnome Nano II Software F...

Страница 4: ...ecording 31 9 4 11 Multifunction Button 32 9 4 12 LEDs Status 32 9 4 13 Profiles 32 9 4 14 Change Password 33 9 4 15 Deleting Recordings after Entering Invalid Password 34 9 4 16 Setting Device Time 35 9 5 Recordings 36 9 5 1 The Recordings Area 36 9 5 2 Toolbar 36 9 5 3 Recording List 37 9 5 4 Recording Playback 37 9 5 5 Deleting Recordings 37 9 5 6 Copying Files to PC 38 9 5 7 Digital Signature ...

Страница 5: ... arrow Menu Option meaning you should access the Menu first and then select an Option Below there is a notification layout used in the Manual according to notification severity level Links to other documents in the body text Notes important notices and instructions obligatory for fulfilling Not fulfilling these requirements may potentially lead to hardware and software malfunctions and failures Tr...

Страница 6: ...2 325 88 48 Fax 812 327 92 97 1 2 Service Maintenance and Technical Support To contact Technical Support use the following methods Email support speechpro com Web Portal http www speechpro com support_form When contacting our Technical Support please include the following details into your call ticket Device name and serial number Supplementary hardware microphone set headphones etc Firmware versi...

Страница 7: ...ding process can be performed via either one onboard or two external microphones as well as from third party hardware line outputs You can select a source signal manually The recorded sound is stored on the device internal flash memory Recording process may be controlled both manually and automatically Connecting the device to a PC enables recorded data playback copying recordings to PC hard drive...

Страница 8: ...device may also be protected with a password It is recommended using at least four digits for password Password is set and changed by a user By default password is not set Moreover the user can enable the option of deleting all recordings from device memory after entering invalid password five times in a row For more information on password settings please refer to Section 9 4 14 After copying dat...

Страница 9: ...o II Ultra Small Digital Stereo Recorder STC H713 1 AC power supply 1 Micro USB cable 1 Line in cable 1 Headphone adapter 1 Microphone set with a remote control 1 Compact headphones 1 Specialized Manager software for Gnome Nano II recorder STC H713 1 Operation Manual 1 Shipping box 1 ...

Страница 10: ...ut 93 3 dB microphone input 83 5 dB Dynamic range of recorded signals at 1 kHz with 16 kHz sampling rate with no compression 24 bit PCM line input 93 3 dB microphone input 83 5 dB Frequency response unevenness 1 0 8 dB Depth of AGC 35 5 dB Internal microphone type Electret Battery life Recording duration with settings 8 kHz mono 16 bit PCM 24 h in the VOX 70 h Standby mode schedule 4000 h Maximum ...

Страница 11: ...ng slide switch 4 Multifunction button erase or playback 5 Micro USB connector 6 LED 7 RST RESET button 6 2 Device Memory For data storage the 16GB embedded non volatile memory system eMMC is used in the device The storage keeps audio data for at least 10 years when the device is shut down Device storage is divided into 2 sections a section with pre recorded device driver and the application and a...

Страница 12: ... loop 4 for fastening it to clothes External microphones can be connected to the voice recorder to increase stereo base and recording quality Figure 3 Connecting external microphones While connecting external mics make sure the PUSH sign Figure 3 on the plug faces the special symbol When disconnecting the cable from the recorder first press the PUSH button on the plug and then pull the plug out No...

Страница 13: ...hen charging the recorder from your PC USB port you need to consider the following in case the current in the port is lower than expected or several devices are connected to a port at the same time you may experience temporary connection issues The red LED 6 in Figure 1 will light up and remain on continuously until the battery is fully charged After the battery is fully charged the process will b...

Страница 14: ...rding options in accordance with the acoustic environment see Section 9 4 15 Enable and enter your password to protect Gnome Nano II settings from unauthorized access if required see Section 9 4 14 Plug in external microphone if required see Section 6 3 Before connecting your voice recorder to PC make sure the PC case is effectively grounded Grounding is strictly recommended if you intend to conne...

Страница 15: ...s possible The closer the microphones are placed to the acoustic signal speech source the smaller the reverberation echo will be and the higher gain level and speech intelligibility will be achieved During stereo recording external microphones must be placed at least 15 cm away from each other Try to place the microphones in such a way as to avoid vibration and rubbing against other surfaces Exter...

Страница 16: ...ssion automatically at any desired time using built in timers To enable the scheduled recording mode while configuring the device parameters see Section 9 4 10 do the following Activate one or several timers Set the desired start and stop time for each recording session If multiple timers are enabled and the end of one recording session overlaps the beginning of the next recording session the devi...

Страница 17: ...rding size is 2 GB 7 4 Recording Playback and Deletion You can delete and play back recordings stored in the device memory either using device controls or by means of the managing application Playback and deletion process with Voice Recorder Manager is described in Section 9 5 To play back or delete recording with multifunction button on the device case 4 in Figure 1 you must assign the relevant f...

Страница 18: ...Button The RESET button located on the device case 7 in Figure 1 is used for recorder reboot The RESET button is located in the small pin sized hole You will need a paper clip to actually press the button After pressing RESET all user settings will remain intact Do not use needles and other sharp objects as they can damage the button and its functions will no longer be available ...

Страница 19: ...m Requirements The minimum system requirements for Manager are PC with available USB port and a CD drive CPU Intel Pentium III RAM 256 Mbyte Audio I O sound card Headphones Mouse keyboard At least 16 GB of free hard disk space to store recorded data 8 2 2 Driver Installation To be able to work with the Voice Recorder Manager application first you must install the drivers that come with the device ...

Страница 20: ... select Control Panel Hardware and Sound Device Manager If the driver is installed successfully the device will show up in the Device Manager dialog Figure 6 1 In the Disk drivers section as STC Product USB Device 2 In the Portable devices section as GNMN2_ХХХХХ where ХХХХХ stands for device serial number 3 In the Ports COM LTP section as Communications Port It is not required to install Voice Rec...

Страница 21: ...application title and three client areas arranged the following way 1 Main menu 2 Device state area 3 Area displaying one of the three operation modes Overview Settings and Recordings Figure 7 Main screen Overview area Application main screen is composed of the following icons Icon Description Opens the Overview area see Section 9 3 Opens the Settings area see Section 9 4 Opens the Recordings area...

Страница 22: ...tes Free memory KB the amount of free memory in kilobytes Used memory KB the amount of used memory Maximum record time h m s estimated recording duration with specified device operation parameters The Miscellaneous section contains the following data Serial number device serial number Firmware version device firmware version Hardware version device version The Overview area also contains the follo...

Страница 23: ...ng this recording and digital signature file To perform verification apart from audio recording you need a digital signature file and a public key file You are recommended locating public key files key digital signature files dsg and audio recordings wav rng in the same folder Figure 9 Figure 9 Files prepared for verification Figure 10 Specifying access paths To start verification click Verify sig...

Страница 24: ...ameters for each fragment Begin fragment start time End fragment end time Duration total fragment duration Info watermark check results The Info column contains data on the detected fragment or whole file Watermark consists of the following information Date and time the fragment or file has been created Device name for example GNN2_713 Device serial number for example 10 If no watermarks are detec...

Страница 25: ...fied recording part can last several seconds or minutes Click Close to exit Check file dialog 9 3 5 Formatting Device Memory Figure 14 Memory formatting dialog In order to format device storage section the files are recorded to click Format memory Figure 7 In the dialog Figure 14 click Yes To cancel formatting device memory click No or Cancel 9 3 6 Writing Manager to the Device Figure 15 Copying M...

Страница 26: ...w firmware version will be applied to the device A message suggesting rebooting the device Figure 16 will show up Click OK 9 3 8 The About Option Figure 17 The About dialog To view the Voice Recorder Manager information click About Figure 7 To close the About dialog Figure 17 click OK 9 4 Device Settings The Settings area is used for configuring device parameters To open the Settings area click in...

Страница 27: ...ord 5 The Adjust time button Configuration is performed via shortcut menu or a dialog of each parameter To open a shortcut menu right click the parameter title To open a parameter dialog double click its title Below you can see a complete list of adjustable parameters There is an error section in the Settings area This section displays errors that may occur while configuring the device If no error...

Страница 28: ...hone Line input To set recording signal source click Setup of the shortcut menu Figure 19 Figure 20 Selecting signal source Use the Left channel and Right channel areas to set signal sources for recording Figure 20 For mono recordings tick the Only left channel mono option If the signal source for both channels is not specified the application will display the error message in the area 3 of the ma...

Страница 29: ...e application features an indicator displaying the Current signal level The indicator marks when the signal reaches the threshold The Volume triggered recording mode VOX operates only left channel signal sources If source signal for the left channel is not set the application will display the error message in the area 3 Figure 18 and the recording will not begin Figure 24 The Volume activated reco...

Страница 30: ...der Possible values for this parameter range from 6 dB to 32 dB If you want the device to carry out gain control automatically select the Automatic control type Manual adjustment for the right and left channels will be unavailable Click OK to apply changes To close the dialog and cancel the current selection click Cancel 9 4 7 Loop Recording Figure 27 The Loop recording shortcut menu The Loop reco...

Страница 31: ...rks mode enabled SNR becomes 3 dB lower and the battery discharges 10 15 faster while recording 9 4 10 Scheduled Recording Figure 31 The Scheduled recording shortcut menu The Scheduled recording sessions area allows you to enable or disable timer triggered recording Five timers enable up to five recording sessions that can set in advance Adjust the timer before enabling Click the Setup option from...

Страница 32: ...ou set two periodic timers with the exact same parameters or if the device detects errors while setting timer parameters you will see the error message in the relevant area 3 of the application main screen Figure 18 In the recording pauses the battery accumulates the charge That is why if during periodic recording the battery discharges audio files might be of shorter duration 9 4 11 Multifunction...

Страница 33: ...d click Save profile A dialog will show up Figure 35 Use the drop down list to select one of the three profile names Profile 1 Profile 2 or Profile 3 Click OK to save the profile to the device memory and apply it as a current profile Figure 36 Loading a profile To apply one of the profiles to the device do the following Click Load profile In the dialog Figure 36 select one of the profiles Click OK...

Страница 34: ...o PC In the dialog Figure 38 enter your password in the relevant box and click OK For security purposes you are recommended to use at least four digits for password Figure 39 Invalid password If the device is not connected or password is wrong Figure 39 you cannot access the device and configure device settings 9 4 15 Deleting Recordings after Entering Invalid Password Figure 40 The Security dialo...

Страница 35: ...Device time area 5 of the Voice Recorder Manager Figure 18 Figure 43 Setting device time To set device time and date click the Adjust option located in the application main screen the Settings area In the Device time dialog Figure 43 specify current time and date in the Device time input box Click Synchronize with PC if you want to synchronize device time with the time on your PC To save changes a...

Страница 36: ...gs area contains the following controls Figure 44 1 Tool bar 2 Folder selection drop down list 3 List of recordings 9 5 2 Toolbar Below you can see a table with icons their description and relevant shortcut menu options Icon Shortcut menu option Description and purpose Grid Display grid of the recording list Select string Select the whole string Refresh Refresh recording list Up Go one level up De...

Страница 37: ...riggered M Manually T Scheduled Recording V Volume activated recording L Loop recording Audio summary sampling rate mono stereo compression type Duration recording duration Source recording source 9 5 4 Recording Playback The rng recordings cannot be played back before their conversion Figure 45 Windows Media player dialog Double click on a recording you want to play Figure 44 Your OS default medi...

Страница 38: ...ng file to wav so that the recording time matches the data time To do so while copying your files to PC select Unroll from the shortcut menu Figure 44 9 5 7 Digital Signature You can generate digital signature for an audio file while copying it to PC hard drive To do so open shortcut menu of a file you want to create digital signature for and click Sign Figure 44 To create digital signature for rn...

Страница 39: ...a file with wrong bitness Previous driver versions that are not compatible with your Windows version were tried to be installed on your PC If you face any of the mentioned errors first of all make sure the driver you have installed is compatible with your Windows version If the wrong driver has been installed you need to reinstall the driver make sure to select the one compatible with your OS If t...

Страница 40: ... under the following operating conditions Environment temperature minus 10 to plus 40 C Relative humidity up to 93 at plus 25 C The most fragile recorder part is the microphone Avoid storing and operating the device in humid or dusty conditions Keep the device away from liquids ...

Страница 41: ...ackage by automobiles railway boxcars or cargo vessels according to shipping rules for respective type of transport Ambient temperature for storing the recorder in manufacturer package in an enclosed heated and ventilated industrial facility or other areas should range from 5 to 40 C Relative humidity may not exceed 80 ...

Страница 42: ...unless any of the operating storage and transportation conditions was violated The warranty period is 12 months from the date of delivery The Manufacturer shall perform product warranty maintenance with no extra cost for the Customer Warranty maintenance means product performance recovery in case of product failure that is not in any way related to product misuse within the warranty period In case...

Страница 43: ...compliance with required standards and valid technical documentation and classified as fit for use Head of Quality Control Dept Stamp Here ______________________ ______________________ Signature Print Full Name ______________________ Day Month Year Shipping Date _____________________ __________________ ___________________ Day Month Year Signature Print Full Name Batch Number and Device Number Brea...

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