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Speech Technology STC-H476 User Manual

Portable digital stereo voice recorder gnome 7.0
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Users Guide
GNOME 7.0
Portable Digital
Stereo Voice Recorder
STC-H476
User Guide

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Summary of Contents for Speech Technology STC-H476

  • Page 1 Users Guide GNOME 7.0 Portable Digital Stereo Voice Recorder STC-H476 User Guide...
  • Page 2 Manufacturer retains the right to make amendments to the manual, connected with improve- ment of the voice recorder design, without extra notification. Amendments made will be published in new edition of the manual and at the company’s web site: http://www.speechpro.ru If you have any questions regarding the use of the voice recorder, please contact the company’s technical support or the support of its regional dealers.

  • Page 3: Table Of Contents

    CONTENTS CONTENTS INTRODUCTION ............................. 3 TYPOGRPAPHIC CONVENTIONS ..........................3 TRADEMARKS ................................... 3 GENERAL INFORMATION ..........................4 DESIGNATION ................................... 4 ABOUT THE PRODUCT ..............................4 PERFORMANCE SPEIFICATIONS ........................ 5 CAPABILITIES ..............................6 GENERAL .................................... 6 CONTROLLING AND DISPLAYING FUNCTIONS ......................6 VOICE RECORDER CAPABILITIES ..........................
  • Page 4 CONTENTS TIMERS ................................25 LOOP ................................30 VOICE ACTIVITY ............................32 MEMORY ............................... 34 PIN CODE ..............................36 DATE AND TIME ............................38 MISCELLANEOUS............................40 PLAYBACK ..............................42 FILE DELETING ............................. 46 INFORMATION ABOUT VOICE RECORDER ..................47 INSTALLATION OF THE VOICE RECORDER MANAGER ..............48 LAUNCHING VOICE RECORDER MANAGER ..................

  • Page 5: Introduction

    All the other names of companies and products, mentioned in the document, are the property of their corresponding owners. No part of the present edition is subject to reproduction, transmission, storage in search system or translation into any lan- guage in any form, by any means without written consent of the company «Speech Technology Centre».

  • Page 6: General Information

    Figure 1 – Appearance of the voice recorder ABOUT THE PRODUCT Name: Portable digital stereo voice recorder Gnome 7.0 Label STC-H476 Producer: Speech technology center, Ltd. Postal Address: Russia, St. Petersburg, Krasutskogo st. 4, PO 196084 Phone: +7 (812) 325-88-48 Fax: +7 (812) 327-92-97...

  • Page 7: Performance Speifications

    PERFORMANCE SPEIFICATIONS PERFORMANCE SPEIFICATIONS Feature Value Recording channels External microphone inputs (stereo) Line inputs (mono/stereo) Flash memory volume, GB Plug-in memory card volume, GB Up to 32 Plug-in memory card type microSDHC Recording format PCM 16 and 24 bit without compression; with compression acc.

  • Page 8: Capabilities

    CAPABILITIES CAPABILITIES GENERAL Audio is recorded onto a removable microSD card. The flash memory card compatible with the voice recorder is microSDHC (Secure Digital High Capacity). For correct and proper functioning of the voice recorder, use microSD cards, Speed Class 6 or higher.

  • Page 9: Capabilities Of The Voice Recorder Control Software

    CAPABILITIES – Audio files and saving them to the built-in nonvolatile memory, 4 GB; – Audio files and saving them to the replaceable nonvolatile microSD cards; – With built-in or external microphones, and also through line inputs; – And automatically detecting the input signal type, fed to the external jack (IN jack); –...

  • Page 10: Recording Duration

    CAPABILITIES – Setting the timers (p. 56); – Setting and changing PIN-codes (p. 57); – Updating the voice recorder’s software (p. 58); – File management (p. 59); – Converting from WAV to MP3 (p. 60); – Digital signature verification (p. 61); –...

  • Page 11: Getting Started

    GETTING STARTED GETTING STARTED INSERTING MEMORY CARD If you want to save the recorded data onto the external memory, you should insert a memory card. The memory card slot is located at the left side panel of the voice recorder, marked with the label covered with protective shield marked SD.

  • Page 12: Connecting The Recorder To External Devices

    GETTING STARTED CONNECTING THE RECORDER TO EXTERNAL DEVICES To connect the voice recorder to external devices, use the following jacks: USB – mini-USB jack for connection to a computer; OUT – 3.5 mm headphone jack; IN – ten-needle jack for microphone garniture, line input cable or adaptor for recording from telephone line.

  • Page 13: Controls

    CONTROLS CONTROLS For control of the voice recorder use 9 buttons at the front panel and the switch, starting and stop- ping the Record mode, located at the right side panel of the voice recorder. To switch to Record mode slide the switch to the position;...

  • Page 14: Switching On And Off

    SWITCHING ON AND OFF SWITCHING ON AND OFF SWITCHING THE VOICE RECORDER ON To switch the voice recorder on, press the button and hold it 3 seconds or long- er. A set of indicators must appear on the display. For more information, see DIS- PLAY VIEW WHEN RECORDER IS ON (p.

  • Page 15: Display Status Indication

    DISPLAY STATUS INDICATION DISPLAY STATUS INDICATION DISPLAY VIEW WHEN RECORDER IS ON The display shows the recorder’s statuses, represented in the form of icons, indicators and mes- sages. The recorder’s display contains eleven lines. Below there are possible icons and symbols that may appear on the display. Headphones connection, Memory Timer...

  • Page 16: 1St Screen Line

    DISPLAY STATUS INDICATION 1st SCREEN LINE Headphones, noise cancellation and end-to-end channel Indicator Description Headphones are not connected. Headphones are connected. Playback mode is on (end-to-end channel)). Noise cancellation mode is on. Memory used Indicator Description 100% No memory card. Audio is recorded into the recorder’s memory. Voice recorder uses a removable memory card.

  • Page 17: 2Nd Screen Line

    DISPLAY STATUS INDICATION 2nd SCREEN LINE The 2nd screen line displays current date and time. 3d-4th SCREEN LINES The 3rd line displays RECORDER, current recording duration or playback time. The 4th line displays the current file name. 5th SCREEN LINE The 5th screen line displays the recording format and mode and the sample rate.

  • Page 18: 6Th-8Th Screen Lines

    DISPLAY STATUS INDICATION 6th-8th SCREEN LINES The 6th to 8th lines display the connection of internal and external microphones as well as line input. Internal microphone connection Indicator Description The internal microphone is not connected. The microphone is connected. Depending on the channel, there are additional markers: L –...

  • Page 19: 10Th Screen Line

    DISPLAY STATUS INDICATION 10th SCREEN LINE The 10th line displays the amplification level in decibels (dB) for the left and right channels. The manual adjustment range is 0 to +59 dB. The yellow frame marks the manual adjustment indication. You can choose only left, only right or both channels. For that, use the buttons.

  • Page 20: Recording

    RECORDING RECORDING Before starting to record, verify that the recorder is ready, checking that audio signal sources, batteries and memory card are connected and then do the following. Switch the voice recorder on, as shown on p. 12. Start recording by sliding the switch to the position.

  • Page 21: File Name

    FILE NAME FILE NAME The voice recorder has two file name formats: 1. Normal format: a «G_:» prefix and six decimal digits. Since the prefix is the same for all files, it won’t appear in the Next №: line. You can only select this format but you cannot change its value. Filenames are automatically formed by adding 1 to the digital part of every new filename.
  • Page 22 FILE NAME For change special file name format perform the following actions Press the button to select special file name format: Next №: 11111111 To change the file name press the button. The last digit will be available for changes Next №: 111111111 button, select the necessary value from 0 to 9, for example, 2...

  • Page 23: Recording Parameters Adjustment

    RECORDING PARAMETERS ADJUSTMENT RECORDING PARAMETERS ADJUSTMENT To configure parameters of the voice recordings, perform the following actions. Switch the voice recorder on, as described on p. 12. Shortly push the button. The Settings screen will appear on screen with voice recorder settings.
  • Page 24 RECORDING PARAMETERS ADJUSTMENT Channels – choice of channels number In the Record settings screen with the button, select parameter: Channels stereo Channels mono. To change the selected parameter, press the button, for example, Channels stereo. button, select the necessary value of the Channel parameter With the Channels stereo...
  • Page 25 RECORDING PARAMETERS ADJUSTMENT In the Inputs screen perform the setting of the right channel in the same way as was done for the left channel. To return to the Recording settings screen, press the button. If all inputs are set to state Left In none Right In...
  • Page 26 RECORDING PARAMETERS ADJUSTMENT Exit the Record settings screen After checking the correctness of the other record setting to exit the Record settings screen, press the button. If the record settings have changed, the Save message will appear. With the button, select the necessary answer. Choose Yes to confirm changes.

  • Page 27: Timers

    TIMERS TIMERS The built-in timers of the voice recorder allow executing up to five recording sessions at the pre - set time. For each timer it is possible to set date and time of start, period of the repeated switching on in hours, priority and duration of the recording session.
  • Page 28 TIMERS Length, hhh:mm – recording duration setting In the Timers 1 submenu with the buttons, select the Length parameter: Length, hhh:mm 000:30 To enter the Length submenu, press the button. In the Length submenu with the button, select menu item of record duration in hours: hour Press the button.
  • Page 29 TIMERS In the Period screen with the button, select menu item: Press the button. button, set the status day from 0 to 365, for example, With the 1. Press the button. In the Period screen with the button, select menu item: hour Press the button.
  • Page 30 TIMERS button, select menu item month: With the month Press the button. With the buttons, select the necessary value for the month from follow- ing list: Jan, Feb, Mar, Apr, May , Jun, Jul, Aug, Sep, Oct, Nov, Dec, for example, month Press the button.
  • Page 31 TIMERS For confirmation of the choice press the button The Timers 1screen will appear on screen again. Under the Start time parameter will be shown the set date and time start for the selected timer. After setting of all the Timers 1parameters to exit the Timers 1 screen, press the button.

  • Page 32: Loop

    LOOP LOOP «Loop» recording mode is executed in the restricted (allocated by user) storage capacity. For application of this mode perform the following actions. Switch the voice recorder on as described on p. 12. Shortly push the button. The Settings screen will appear on screen with voice re- corder settings.
  • Page 33 LOOP Exit the Loop screen To exit the Loop screen, press the button. If the «Loop» mode parameters have been changed, the Save message will ap- pear. With the button select the necessary answer. Choose Yes to confirm changes. Choose No to cancel changes. For confirmation of the choice press the button .

  • Page 34: Voice Activity

    VOICE ACTIVITY VOICE ACTIVITY «Voice activity» mode is applied for automatic start (continuation) and stop (pause) of the re- cording depending on the level of signal at the corresponding voice recorder input. For recording with «Voice activity» mode perform the following actions. Switch the voice recorder on as described on p.
  • Page 35 VOICE ACTIVITY Level – «Voice activity» threshold value setting In the Voice Activity submenu with the button, select menu item: Level, dB Press the button. button, select the necessary value for the Threshold parameter in With the the range from minus 31 to 0 dB, for example, Level, dB Press the button.

  • Page 36: Memory

    MEMORY MEMORY For information about the memory type and condition, perform the following actions. Switch the voice recorder on as described on p. 12. To enter the Settings screen press the button. In the Settings screen with the button, select menu item: Memory SD card...
  • Page 37 MEMORY Format – selected memory formatting Memory formatting is used to full erase of the voice recorder memory. Using the Type command to select one of the memory types: Type SD card Type Internal. In the Memory submenu with the button, select the Format menu item and press the...

  • Page 38: Pin Code

    PIN CODE PIN CODE To protect voice recorder data from unauthorized use, main recorder’s functions (recorded data playback and deleting, modification of recording parameters) can be realized only after entering a personal identification number (PIN). Switching voice recorder on and off and recording are possible without PIN-code entering. PIN-code entering If protect with using of the PIN is on, when accessing to secure voice recorder function the PIN-code submenu will appear.
  • Page 39 PIN CODE PIN-code setting If protect with using of the PIN is off, the NEW PIN-code screen will appear. To enter the PIN entering mode, press the button. In the NEW PIN-code screen use the but- tons to set the necessary PIN value (see. PIN-code entering). Enter necessary number of the PIN digits from 1 to 8.

  • Page 40: Date And Time

    DATE AND TIME DATE AND TIME To set or change the date and time, perform the following actions. Switch the voice recorder on as described on p. 12. Press the button once. The Settings screen will appear on screen with voice record- er settings.
  • Page 41 DATE AND TIME Time setting button, select menu item hour: With the hour Press the button. button, set the value for the hour: With the hour The value set in the range from 0 to 23 hours. Press the button. With the button, select menu item minute: minute...

  • Page 42: Miscellaneous

    MISCELLANEOUS MISCELLANEOUS The Miscellaneous menu item is designed for changing the interface language and backlight duration setting of voice recorder. To enter the Miscellaneous submenu, perform the following actions. Switch the voice recorder on as described on p. 12. To enter the Settings screen press the button.
  • Page 43 MISCELLANEOUS The Backlight RM screen The Backlight RM submenu contains two commands: Always enabled – backlight switching on and off for the record mode. OFF delay, sec – backlight duration setting for the record mode. Always enabled – backlight switching on and off for the record mode In the Backlight RM submenu with the button, select: Always enabled...

  • Page 44: Playback

    PLAYBACK PLAYBACK To playback and listen signal from voice recorder memory use internal speaker or headphones connected to voice recorder. Switch the voice recorder on as described on p. 12. The main window will appear on screen (see DISPLAY VIEW WHEN RECORDER IS ON p. 13). Connect headphones to the voice recorder as described in section CONNECTING THE RECORDER on page 10.
  • Page 45 PLAYBACK Playing To start playback of the selected file, press the button. icon will change to You will see the following information on the screen: – the current playback time, – total recording duration, – file name, – file format, audio type (mono or stereo) –...
  • Page 46 PLAYBACK Continuous (Loop) Playback To activate this mode, at first, you should set time tags within which you wish to play a record continuously. Press the button to set the start time tag, e.g. 00:00:02 Press the button to set the end time tag, e.g. 00:00:44 If you press the button twice during the playback, it will set new time...
  • Page 47 PLAYBACK Noise Cancellation (Denoiser) While Playing Press the button. The current noise cancellation state will be displayed. You can active the noise cancellation function only for audio files recorded with PCM16 and sampling rate 8, 11 and 16 kHz. Press the button to activate the noise cancellation function.

  • Page 48: File Deleting

    FILE DELETING FILE DELETING To delete a file from SD card, perform the following actions. Switch the voice recorder on, as described on p. 12. The main window will appear on screen (see DISPLAY VIEW WHEN RECORDER IS ON p. 13). Selecting a Folder Press the top left button, which performs a file list display...

  • Page 49: Information About Voice Recorder

    INFORMATION ABOUT VOICE RECORDER INFORMATION ABOUT VOICE RECORDER For information about the voice recorder and software, preform the following actions. Switch the voice recorder on, as described on p. 12. The main window will appear on screen (see DISPLAY VIEW WHEN RECORDER IS ON p. 13). Shortly push the button.

  • Page 50: Installation Of The Voice Recorder Manager

    INSTALLATION OF THE VOICE RECORDER MANAGER INSTALLATION OF THE VOICE RECORDER MANAGER Some of the voice recorder settings and functions can be controlled by PC. To connect the voice recorder to PC perform the following action. Connect the voice recorder to a PC USB-port via the PC connection USB-cable. After detecting new hardware the Update Driver Software wizard will start.
  • Page 51 INSTALLATION OF THE VOICE RECORDER MANAGER Select the Install this driv- er software anyway op- tion (fig. 5). Figure 5– Windows Security message Wait for software installa- tion will complete (fig. 6) Figure 6 – Software installation Press the Close button (fig.

  • Page 52: Launching Voice Recorder Manager

    LAUNCHING VOICE RECORDER MANAGER LAUNCHING VOICE RECORDER MANAGER If the voice recorder is connected to the PC, the special program Manager (program) may be used to manage specific settings and functions. The program represents the executable file and does not require the installation. It may be lo- cated at any place of PC’s hard drive.

  • Page 53: Description Of The Voice Recorder Manager

    DESCRIPTION OF THE VOICE RECORDER MANAGER DESCRIPTION OF THE VOICE RECORDER MANAGER MAIN WINDOW Start the program. The Manager main window will appear (fig.12). Figure 12 – The Manager main window The following information is placed in the upper part of the window: –...
  • Page 54 DESCRIPTION OF THE VOICE RECORDER MANAGER – Opens the Settings window, where the record options are set or changed in the voice recorder (see RECORD OPTIONS SETUP); – Opens the Date Setup window, where the current date and time are set or changed in the voice recorder (see DATE AND TIME SETUP);...

  • Page 55: Record Options Setup

    DESCRIPTION OF THE VOICE RECORDER MANAGER RECORD OPTIONS SETUP Click the Setting button in the main window of the program (fig.12) and set the following rec- ord options in the Settings window (fig.13). Figure 13 – The Settings window If the manual adjustment of record level is necessary, select the Manual adjustment checkbox in the Record level area and use the Level, dB slider to set the required record level.
  • Page 56 DESCRIPTION OF THE VOICE RECORDER MANAGER Select the checkboxes in the Source area to set the record signal sources for the left and right channels of the voice recorder. The fol- lowing options may be selected: – Internal Microphone – External Microphone 1 –...

  • Page 57: Date And Time Setup

    DESCRIPTION OF THE VOICE RECORDER MANAGER DATE AND TIME SETUP Click the Date and time button in the main window of the program (fig.12) and in the Date set- up window (fig.14) set the following time options. Figure 14 – The Date setup window Select the required date in the Date list: In order to do that: –...

  • Page 58: Timer Setup

    DESCRIPTION OF THE VOICE RECORDER MANAGER TIMER SETUP Click the Timers button in the main window of the program (fig.12) and see the settings in the Timers window (fig.15). Figure 15 – The Timers window Each of five timers has the options as follows: Priority –...

  • Page 59: Changing Pin

    DESCRIPTION OF THE VOICE RECORDER MANAGER CHANGING PIN Click the Change PIN button in the main window of the program (fig.12). Proceed as follows in the Change PIN window (fig. 17). Figure 17 – The window Change PIN Type the current PIN in the Current PIN field . Type new PIN in the New PIN field .

  • Page 60: Internal Program Update

    DESCRIPTION OF THE VOICE RECORDER MANAGER INTERNAL PROGRAM UPDATE Click the Firmware Update button in the main window of the program (fig.12) and select the following record options in the Select firmware file window (fig. 18). Figure 18 – The File Manager window Select the folder with the firmware file.

  • Page 61: File Manager Window

    DESCRIPTION OF THE VOICE RECORDER MANAGER FILE MANAGER WINDOW The File Manager window is designed within the program for certain operations with the rec- ord files of audio information (fig. 21). To open this window, click the File Manager button in the main window of the program (fig.12). Figure 21 –...

  • Page 62: Conversion Into Mp3 Format

    DESCRIPTION OF THE VOICE RECORDER MANAGER CONVERSION INTO MP3 FORMAT When you have clicked the Convert to MP3 button in the main window of the program (fig.12), the Select audio file window will appear (fig.22). Figure 22 – The Select audio file window Select the file for conversion and click the Open button.

  • Page 63: File Signature

    DESCRIPTION OF THE VOICE RECORDER MANAGER FILE SIGNATURE The option of digital signature allows verification of authenticity of a record (make sure that no changes are made to the record). Click the Sign file button in the main window of the program (fig.12) to sign the file. Select an audio file to sign, click the file with the left mouse button and click the Open button (fig.

  • Page 64: Digital Signature Verification

    DESCRIPTION OF THE VOICE RECORDER MANAGER DIGITAL SIGNATURE VERIFICATION Click the Verify Signature button in the main window of the program (fig.12) to verify the au- thenticity of record with the digital signature. State the path to the record file, signature file and public key file in the Verify Signature window (fig.
  • Page 65 DESCRIPTION OF THE VOICE RECORDER MANAGER Figure 29 – Selection of public key file After completing of all fields in the Verify Signature window, click the Check button (fig. 30). Figure 30 – The Verify Signature window If the selected audio file is not changed and the digital signature thereto is selected right, the message of au- thenticity of the checked audio file will appear (fig.

  • Page 66: Private Keys Export

    DESCRIPTION OF THE VOICE RECORDER MANAGER PRIVATE KEYS EXPORT Each user is generated his or her key pair (public and private key). The user signs the files with the private key. The receiver of files may check their authenticity with the public key. The program allows for export and import of private keys and public key export.

  • Page 67: Private Keys Import

    DESCRIPTION OF THE VOICE RECORDER MANAGER PRIVATE KEYS IMPORT To import the private key, click the Import Private Key button in the main window of the pro- gram (fig.12). Find the file with the private key in the window, click it with the left mouse button and click the Open button (fig.

  • Page 68: Public Key Export

    DESCRIPTION OF THE VOICE RECORDER MANAGER PUBLIC KEY EXPORT Public key is a single and universal key for all files recorded with this voice recorder model. This file is transferred to the data receiver and used to verify the authenticity of received data. To export public key, click the Export Public key button in the main window of the program.

  • Page 69: Delivery Set

    DELIVERY SET DELIVERY SET Base Case “Business” 1. Portable digital stereo voice recorder Gnome 7.0 STC-H476 2. microSD card, 8 GB 3. USB connection cable 4. The voice recorder’s Manager software 5. Alkaline AAA Battery, (LR03) 6. Package box Extended Case “Professional”...

  • Page 70: Warranty

    WARRANTY WARRANTY The manufacturer guarantees that the issued device conforms to the technical requirements, whereby the user observes the conditions and regulations of operation, storage and transport. The warranty period is 36 months since the date of delivery. During the warranty period, the manufacturer repairs or replaces the spare parts free of charge, provided that the user has observed the proper use, storage and/or transportation of the device.

  • Page 71: Registration Certificate

    REGISTRATION CERTIFICATE REGISTRATION CERTIFICATE Portable digital stereo voice recorder Gnome 7.0 STC-H476, serial number_________________________________________, conforms to technical requirements and is declared suitable for use. Adjustment conducted by Stamp ___________________ ____________________ Subscription full name ____________________ day, month, year Date of issue...
  • Page 72 MEMO 05–01 03 2012...

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