Speech Technology Center ANF II Manuel utilisateur

ANF II

Portable device for sound cleaning and

speech signals recording

STC-H474

Operating manual

Thank you for choosing the product of our company.

Before starting work with ANF II thoroughly read this Operating Manual. If there are some questions concerning the use of

the product, please contact the Speech Technology Center technical support service:

E-mail

support@speechpro.com

Telephone

+7 (812) 325-8848, ext. 2

Fax

+7 (812) 327-9297

Internet

http://www.speechpro.com/

We welcome your feedback, questions and concerns regarding ANF II.

If you have any questions concerning the use of this product, please contact Speech Technology Center’s technical support

service or your regional dealer.

The manufacturer retains the right to make amendments to this manual in connection with improvements made to ANF II

design without special notification.

Any such amendments will be published in a new edition of the Gnome manual and on the company’s website:

http://www.speechpro.com.

No part of this document can be copied or reproduced in any manner without the written permission of the Speech Technology Center.

CONTENTS

INTRODUCTION....................................................................................................................................................................................3

General provisions........................................................................................................................................................................................3

Operation instructions ................................................................................................................................................................................3

Typography conventions ...........................................................................................................................................................................3

Copyrights ......................................................................................................................................................................................................4

Warranty..........................................................................................................................................................................................................4

1 DEVICE MAIN FEATURES.................................................................................................................................................................5

1.1 Purpose .....................................................................................................................................................................................................5

1.2 About the product.................................................................................................................................................................................5

1.3 Functions..................................................................................................................................................................................................5

1.4 Settings of recording and playback channels................................................................................................................................6

1.5 Engineering data....................................................................................................................................................................................6

1.6 Power supply characteristics ..............................................................................................................................................................6

1.7 Software requirements.........................................................................................................................................................................6

2 DESIGN PHILOSOPHY......................................................................................................................................................................7

2.1 Device view..............................................................................................................................................................................................7

2.2 Device front panel .................................................................................................................................................................................8

2.3 Device back panel..................................................................................................................................................................................9

3 GETTING STARTED......................................................................................................................................................................... 10

3.1 Power supply.........................................................................................................................................................................................10

3.1.1 Inserting batteries................................................................................................................................................................................................ 10

3.1.2 Connecting the device to the external power supply .......................................................................................................................... 10

3.2 Memory card .........................................................................................................................................................................................11

3.2.1 Suitable memory cards ..................................................................................................................................................................................... 11

3.2.2 Removing write protection.............................................................................................................................................................................. 11

3.2.3 Inserting memory card...................................................................................................................................................................................... 11

3.3 Connecting headphones...................................................................................................................................................................12

3.4 Connecting to digital inputs and outputs ....................................................................................................................................12

3.5 Connecting to line outputs...............................................................................................................................................................12

3.6 Connecting to line inputs..................................................................................................................................................................12

3.7 Connecting to telephone line..........................................................................................................................................................12

3.8 Connecting to local network ............................................................................................................................................................13

3.9 Connecting to USB-port.....................................................................................................................................................................13

4 CONTROLS AND INDICATORS ................................................................................................................................................... 14

4.1 Controls...................................................................................................................................................................................................14

4.1.1 Power switch.......................................................................................................................................................................................................... 14

4.1.2 Navigation buttons ............................................................................................................................................................................................ 14

4.1.3 MENU button......................................................................................................................................................................................................... 14

4.1.4 RECORD button.................................................................................................................................................................................................... 14

4.1.5 MONITOR button................................................................................................................................................................................................. 14

4.1.6 Volume control..................................................................................................................................................................................................... 14

4.1.7 Controls of the left and right channels....................................................................................................................................................... 14

4.2 Indicators................................................................................................................................................................................................14

4.2.1 LCD............................................................................................................................................................................................................................. 14

4.2.2 Indicators of the recording level.................................................................................................................................................................... 15

5 MULTILEVEL MENU ....................................................................................................................................................................... 16

5.1 Multilevel menu structure .................................................................................................................................................................16

5.2 Navigation order in the multilevel menu......................................................................................................................................17

5.3 SD-card menu .......................................................................................................................................................................................18

5.4 Settings menu.......................................................................................................................................................................................19

5.4.1 Audio settings........................................................................................................................................................................................................ 19

5.4.2 Voice activation.................................................................................................................................................................................................... 22

CONTETS

5.4.3 Recorder timer menu ......................................................................................................................................................................................... 24

5.4.4 Overflow protection menu.............................................................................................................................................................................. 26

5.4.5 Security menu ....................................................................................................................................................................................................... 27

5.4.6 Date and time menu.......................................................................................................................................................................................... 28

5.4.7 Network settings .................................................................................................................................................................................................. 28

5.4.8 Other settings menu........................................................................................................................................................................................... 31

5.5 Utilities menu ........................................................................................................................................................................................33

5.6 Filters .......................................................................................................................................................................................................36

5.6.1 Broadband noise filter ....................................................................................................................................................................................... 36

5.6.2 Harmonic reject filter.......................................................................................................................................................................................... 38

5.6.3 Equalizer.................................................................................................................................................................................................................. 38

5.6.4 De-clicker................................................................................................................................................................................................................. 40

5.6.5 Speech level enhancer ....................................................................................................................................................................................... 41

5.6.6 Reference noise filter........................................................................................................................................................................................... 41

5.6.7 V changer ................................................................................................................................................................................................................ 43

5.6.8 Presets....................................................................................................................................................................................................................... 44

5.7 Lines selection menu..........................................................................................................................................................................45

6 OPERATION ..................................................................................................................................................................................... 47

6.1 Turning the device on ........................................................................................................................................................................47

6.2 Device general settings......................................................................................................................................................................47

6.3 Sound recording ..................................................................................................................................................................................48

6.3.1 Quick recording.................................................................................................................................................................................................... 48

6.3.2 Selecting sound source and recording settings...................................................................................................................................... 48

6.3.3 Recording in the manual mode .................................................................................................................................................................... 48

6.3.4 Recording in the Voice activation mode ................................................................................................................................................... 49

6.3.5 Recording by timer.............................................................................................................................................................................................. 49

6.3.6 Recording process indication......................................................................................................................................................................... 49

6.4 Playback of recorded audio files ......................................................................................................................................................50

6.4.1 Playback by device .............................................................................................................................................................................................. 50

6.4.2 Playback by PC...................................................................................................................................................................................................... 50

6.5 Deleting audio records.......................................................................................................................................................................50

6.6 Shutting down the device.................................................................................................................................................................50

7 DEVICE CONTROLLING VIA PC................................................................................................................................................... 51

7.1 Software requirements.......................................................................................................................................................................51

7.2 Connecting device to PC ...................................................................................................................................................................51

7.2.1 Connection via USB ............................................................................................................................................................................................ 51

7.2.2 Connection through local network............................................................................................................................................................. 51

7.3 Launching the application ................................................................................................................................................................51

7.4 Application main window tabs........................................................................................................................................................52

7.5 SD-card tab ............................................................................................................................................................................................52

7.5.1 Cleaning recycle bin ........................................................................................................................................................................................... 54

7.5.2 Formatting SD-card ........................................................................................................................................................................................... 54

7.6 Information tab.....................................................................................................................................................................................55

7.7 Monitor tab............................................................................................................................................................................................55

7.8 Filters tab ................................................................................................................................................................................................55

7.8.1 Broadband noise filter ....................................................................................................................................................................................... 56

7.8.2 Tone interference filter....................................................................................................................................................................................... 56

7.8.3 Equalizer.................................................................................................................................................................................................................. 57

7.8.4 De-clicker................................................................................................................................................................................................................. 57

7.8.5 Speech level enhancer....................................................................................................................................................................................... 57

7.8.6 Stereo filter.............................................................................................................................................................................................................. 58

7.8.7 V-changer ............................................................................................................................................................................................................... 58

7.8.8 Presets....................................................................................................................................................................................................................... 58

7.9 Settings tab............................................................................................................................................................................................59

7.9.1 Audio settings........................................................................................................................................................................................................ 59

7.9.2 Lines selection ....................................................................................................................................................................................................... 60

7.9.3 Voice activation.................................................................................................................................................................................................... 61

CONTETS

7.9.4 Recorder timer....................................................................................................................................................................................................... 62

7.9.5 Overflow protection............................................................................................................................................................................................ 63

7.9.6 Security..................................................................................................................................................................................................................... 63

7.9.7 Date and time ....................................................................................................................................................................................................... 64

7.9.8 Network settings .................................................................................................................................................................................................. 64

7.9.9 Other settings ........................................................................................................................................................................................................ 65

7.9.10 Default settings.................................................................................................................................................................................................. 65

7.10 Journals tab .........................................................................................................................................................................................66

7.11 Firmware tab.......................................................................................................................................................................................66

7.12 Disconnecting device from PC ......................................................................................................................................................67

APPENDIX A........................................................................................................................................................................................ 68

BROWSER SETTINGS FOR PROGRAM QUICK LAUNCH .....................................................................................................................68

A.1 Home page using...............................................................................................................................................................................68

A.2 Bookmarks usage................................................................................................................................................................................69

A.3 Usage of the shortcut on the desktop..........................................................................................................................................69

APPENDIX B ........................................................................................................................................................................................ 70

CERTIFICATE ADJUSTMENT IN INTERNET EXPLORER ........................................................................................................................70

APPENDIX C........................................................................................................................................................................................ 73

LIST OF COMPATIBLE MEMORY CARDS................................................................................................................................................73

APPENDIX D ....................................................................................................................................................................................... 74

RECORDING RECOMMENDATIONS........................................................................................................................................................74

INTRODUCTION

General provisions

The document is intended for users of the ANF II portable device for sound processing and speech signals recording.

The manual describes operation, setting, and functions of the device.

Operation instructions

The device must be operated according to the manual.

After the exposure of the device to temperatures below 0° С during transport or storage, it is

necessary to store it at room temperature for 12 hours.

Microphones are the most vulnerable part of the device; avoid spilling fluid on microphones or inside the device. Do not use

or leave this product in any location subject to high humidity or dust.

Typography conventions

Font Meaning

Normal

Body text.

Italic

First appearance of a term. Meaning of the term is explained in the text or in the appendix.

Bold

Indicates names of construction and software components, names of controls and interface elements

(headings, buttons, etc.).

Bold Italic

Indicates file names and access paths.

The manual uses the following notification symbols:

Note: indicates important information that helps you make better use of the product.

Caution: informs you about potential problems with hardware or software.

Warning: warns you about potentially serious problems in certain situations and tells you how to avoid them.

INTRODUCTION

Copyrights

Microsoft, Windows, Windows® Internet Explorer® are trademarks of the Microsoft Corporation. The official Windows is the

abbreviation for Microsoft Windows Operating System. Windows XP is the abbreviation of Microsoft Windows XP Home

Edition/Professional.

Mozilla Firefox® is the registered trademark of Mozilla Corporation.

Opera® is the registered trademark of Opera Software ASA.

Google Chrome® is the registered trademark of Google.

Kingston® Technology is the registered trademark of Kingston® Technology.

Silicon Power® is the registered trademark of Silicon-Power Computer & Communications Inc.

Transcend® is the registered trademark of Transcend Information, Inc.

The logotypes and represent Secure Digital (SD) and Secure Digital High Capacity (SDHC) memory

cards developed by Matsushita (Panasonic), SanDisk and Toshiba.

Warranty

Manufacturer guarantees conformance of the device to technical requirements on condition of observance by the customer

of operation conditions and rules, storage and transportation stipulated by operating documentation.

Device warranty period is 36 months from the day of its delivery to the customer.

Within the warranty period manufacturer undertakes to perform repair or replacement of the device in whole on condition of

observance by the customer of operation conditions and rules, device storage and transportation conditions.

Upon warranty period expiry, the manufacturer provides paid delivery of spare parts and accessories (SPTA). SPTA set and

delivery conditions during the service life of the product should be stipulated in contract.

DEVICE MAIN FEATURES

1DEVICE MAIN FEATURES

1.1 Purpose

ANF II is a portable device for sound cleaning and speech signals recording, it is a professional audio-recording device for

two-channel record, processing and playback of speech signals. ANF II allows improving the quality and intelligibility of

speech signals, recorded and uploaded to removable memory card.

1.2 About the product

Name:

ANF II portable device for sound cleaning and speech signals recording

Model:

STC-H474

Producer:

Speech Technology Center Limited

Address:

Russia, St. Petersburg, Krasutskogo str. 4, PO 196084

Phone:

+7 (812) 325-88-48

Fax:

+7 (812) 327-92-97

For technical support:

[email protected]

http://speechpro.com/support_form

1.3 Functions

Device provides the following functions:

1. Simultaneous two-channel recording of speech signals (audio track) using:

– Built-in microphones;

– External microphones;

– Line input;

– Phone line.

2. Playback of speech signals using:

– Headphones;

– Built-in dynamic;

– Line output.

3. Cyclic recording using free memory capacity (by circle).

4. Manual adjustment of the input signal level.

5. Operation from batteries and external power supply.

7. Use of filters to decrease speech signal distortion and simultaneously suppress different types of interference.

8. Use of filter to change the voice without possibility to restore it.

9. PIN code protection from the unauthorized access.

DEVICE MAIN FEATURES

1.4 Settings of recording and playback channels

Characteristics

Value

Recording channels number

Built-in microphones

Type

electret

Susceptibility level

- 55 dB

Noise floor

maximum 28 dB

Recording format

РСМ 16 and 24 bit without compression

РСМ 8 bit with compression according to µ-law

Sample rate

44.1 (CD Audio format), 16, 8 kHz

Harmonic distortion coefficient—recording through microphone input

(РСМ 24 bit, without compression), nominal level 1000 Hz

maximum 0.02 %

Harmonic distortion coefficient—recording through microphone input

(РСМ 24 bit, without compression), nominal level 1000 Hz

maximum 0.05 %

Signal-to-noise ratio — recording through line input (РСМ 24 bit, 44.1

kHz sample rate, without compression), nominal level 1000 Hz

minimum 105 dB

Signal-to-noise ratio—recording through microphone input (РСМ 24

bit, 44.1 kHz sample rate, without compression), nominal level 1000 Hz

minimum 85 dB

1000 Hz nominal level signal penetration in other channel —recording

(РСМ 24 bit, without compression)

maximum – 100 dB

Harmonic distortion coefficient—recording through line input (РСМ 24

bit, without compression), nominal level 1000 Hz, at 20 kiloohm capacity

maximum 0.02 %

Signal-to-noise ratio — recording through line input (РСМ 24 bit, 44.1

kHz sample rate, without compression), nominal level 1000 Hz, at 20

kiloohm capacity, in 20 Hz-22.05 kHz frequency band

minimum 106 dB

Dynamic range of recorded signals (without compression)

minimum 90 dB

Supported audio file formats

WAV, WSD, MP3

Data carrier

SDHC memory card

Data carrier capacity

to 32 GB

File system on the data carrier

FAT32

Audio file size

maximum 2 GB

1.5 Engineering data

Characteristics

Value

Weight, with batteries

maximum 1350 g

Product dimensions

213х139х76 mm

1.6 Power supply characteristics

Characteristics Value

Power supply source

batteries, external

Autonomous power supply set for alkaline or lithium LR6 batteries, standard size AA, each of

voltage of 1,5 V, piece

External power supply voltage

12…24 V

Power consumption (in recording mode)

6 W

Hours of service of the device in

operating mode powered by an

autonomous power supply set for

Energizer Ultimate Lithium AA

Connection type - USB, recording source - built-in

microphones, recording settings - 44,1 kHz, 24 bit, PCM,

stereo, filters - Broadband, Pulse, Equalizer

4 hrs

Connection type - USB, recording source - built-in

microphones, recording settings - 44,1 kHz, 24 bit, PCM,

stereo, filters - Broadband, Pulse, Equalizer

5.5 hrs

1.7 Software requirements

Characteristics

Value

PC connection

USB 2.0 ETHERNET

Web browser

Mozilla Firefox® 3 and later, Opera® 9.50 and later, Windows® Internet Explorer 7 and

later, Safari or Google Chrome

OS compatibility

Windows® XP, Windows® 7, Windows® 8

DESIGN PHILOSOPHY

2DESIGN PHILOSOPHY

2.1 Device view

Figure 1– Device view

The device consists of the following elements:

1– Front panel of the device with controls;

2– Cover of the batteries compartment;

3– Built-in dynamic;

4 – Back panel with plugs.

2 3 4

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