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Summary of Contents for Acustek GEM-NANO STEREO
- Page 1 GEM-NANO STEREO PROFESSIONAL LONG LIFE STEREO AUDIO RECORDER Operator Manual...
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Page 2: Table Of Contents
DIGITAL SIGNATURE ..............20 SAVING SETTINGS ..............22 EXPORT OF AUDIO FILES ............22 FREQUENTLY ASKED QUESTIONS ........23 ACUSTEK LIMITED REPAIR AND WARRANTY POLICY ..24 SUPPORT AND CONDITIONS OF SALE ........26 Ver 1.20 GEM-NANO STEREO Operator Manual Rev. -
Page 3: General Description
GENERAL DESCRIPTION GEM-NANO STEREO is a small professional grade quality stereo audio recorder designed for covert use. Its reduced dimensions achieved by using the latest technology in board design and printing makes the GEM NANO STEREO one of the smallest audio recorder of its category. It is... - Page 4 • Voice Search capability with software; • Removable micro SD memory; • Great autonomy with the latest state-of-the-art technology. Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 4...
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Page 5: Specifications
Voice Activated Record (VOX) Digital Signature Yes, hardware generated SHA-256 signature Time Stamping Yes Date and Time (including VOX time) and recorder Serial number Record encryption 128bit AES Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 5... -
Page 6: Device Body And Controls
STEREO mode, continuous recording MONO mode. mode. NOTE: Using enhanced audio recording the power consumption increase by 10-15%. In Voice Activation, stand-by mode the power consumption is 1.0mA. Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 6... -
Page 7: Operating Instructions
Software. Note: The GEM-NANO STEREO micro SD card contain specific data and should NOT be used in any other devices, including smartphones, digital cameras, etc. -
Page 8: Preparing A New Micro Sd Card
Do not remove or insert the card, when the recording is still in progress. The GEM-NANO STEREO file can be accessed by inserting the SD card onto the host PC. - The PC will recognize an SD Drive and the “Drive Tolls” window will appear showing 4 image files as in the picture below. - Page 9 “Memory” tab, located on the top left hand corner and then click on “Select image file”. - The software will let you select the location. Make sure you select the SD Drive that the GEM-NANO STEREO is connected to. Ver 1.20 GEM-NANO STEREO Operator Manual Rev.
- Page 10 Double click on the selected recording to load it into the player - From this moment on you are able to fully control and configure the GEM-NANO STEREO by following the instructions in the next section of the User Manual.
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Page 11: Supported Memory Cards
The cards from other manufactures may have higher power consumption thus giving shorter recording times. IMPORTANT: The GEM-NANO STEREO supports up to 128GB SD card and we highly recommend following the below instruction: For SD cards from 64GB or 128GB is... -
Page 12: Start And Stop Of The Recording
Thus for 8GB = 2 files, 16GB = 4 files, 32GB = 8 files and so on. These files will be names differently: rcimage.raw, rcimage.ra1, rcimage.ra2... etc. Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 12... -
Page 13: Configuring The Recorder
The higher the sampling rate and the lower the compression, the better the recording quality. Available compression methods: none - no compression; uLaw - μ-law algorithm (best compression for evidence use); ADPCM - 4-bit lossy compression; Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 13... -
Page 14: Enhanced Audio Processing
It will be clearly marked in the recording list with the sign “St” near each recording using Stereo and “Mn” near each recording using Mono. Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 14... -
Page 15: Voice-Activated Settings
The microphone gain control can be adjusted automatically (AGC) or manually. When AGC is selected, the recorder will automatically adjust microphone gain according to the detected sound level. Maximum Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 15... -
Page 16: Scheduled Recording
Weekly timer: allows specifying a different time period for each day of the week. Timer event calendar: time event calendar enable the user to schedule up to 32 events recording within the integrated calendar. By simply Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 16... - Page 17 (see above left picture) and the Start and Stop time, the settings are saved on the internal SD card and the GEM-NANO STEREO will record accordingly. Once sure about the record settings, click on “Add event”, the event line will be listed in the below box (see above right picture).
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Page 18: Other Settings
Password protected access: Access to the recordings and settings will only be possible upon entering a password. If the password is lost, access to the recordings will not be possible, memory and settings will need to be formatted. Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 18... -
Page 19: Password Protection And Encryption Of Files
PASSWORD PROTECTION AND ENCRYPTION OF FILES For GEM-NANO STEREO (as also per all our audio and video surveillance devices), we have several levels of security features which can be enabled/disabled at user discretion. When the recorder is password protected, all the records are encrypted by 128-bit AES encryption and can’t be open without knowing the access password. -
Page 20: Digital Signature
The Digital Signature is now a feature automatically available in every audio and video recorders developed and manufactured by Acustek. The GEM-NANO STEREO has it’s own SHA-256 hardware calculation during the recording, which at the same time, makes Digital Signature in... - Page 21 The GEM-NANO STEREO also create a *.sig file for each record, where is saved the Digital Signature of the file. The .sig file is a text file where the user can copy/paste the text and verify the signature by using any other party tools for calculating SHA-256 signature.
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Page 22: Saving Settings
Long recordings should be split into several files. Use this option in menu "Records->Maximum size of exported file" to specify maximum size of each exported WAV file. Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 22... -
Page 23: Frequently Asked Questions
Q: Recorded sound is distorted in very loud sequences. A: Enable AGC function in recorder's settings to prevent microphone overloading by loud sounds. Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 23... -
Page 24: Acustek Limited Repair And Warranty Policy
+353 -1- 4433054 or email at info@acustek.com to obtain an RMA number. Returns will be authorized in accordance with the following policy: If it is deemed that the part should be returned, an Acustek representative will send you an RMA form. Completely fill out the RMA form, and place the form in the box with the item(s) being returned. - Page 25 RMA number, which must be clearly marked on the outside of the package. By choosing to request an RMA number from Acustek, it is implied that the customer has agreed to the terms of the Acustek RMA Policy.
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Page 26: Support And Conditions Of Sale
Acustek manufacturing facility. SUPPORT AND CONDITIONS OF SALE If you have not purchased the GEM-NANO STEREO audio recorder directly from ACUSTEK, please contact your local representative in the first instance. - Page 27 ACUSTEK LTD Swords Co Dublin IRELAND Ver 1.20 GEM-NANO STEREO Operator Manual Rev. 2 2017 Page | 27...
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