Edic-mini LCD is a new series of digital audio recorder (DAR). Having small
size traditionally, the model features the following:
-
three-line LCD indicator;
-
joystick to control the
DAR;
-
dynamic range, extended
by 8 times (16 bit codec, and 18 bit when using an external microphone);
-
signal/noise ratio
improved by 12 dB;
-
extended recording
frequency band (100-6000 Hz), sample rate selection 4/8/16 kHz;
-
lower current
consumption: half in Recording mode, 5 times lower in Standby mode and 20
times lower in VAS;
-
faster data exchange with
the PC through the supplied USB adapter;
-
timer for automatic
scheduled recording;
-
antialiasing program
median filter available to improve recorded and played signal quality;
-
firmware upgraded by the
user;
-
new, more functional
software for PC.
Voice recorders of the Edic-mini
LCD series are professional devices intended for making high quality record
of voice messages into the built-in flash memory. You can playback recorded
messages using the earphone and save them into your PC as standard sound
files.
Voice recorders are of extremely small size and weight, have a long record
duration (varies with the model - up to 600 hours) and autonomy operation
(up to 1000 hours), a wide dynamic range and a highly sensitive built-in
microphone. Having no moving parts, the DAR is able to function within a
wide range of temperatures, under strong vibration and dustiness.
For the user's convenience while operating the DAR, there is a push-button
manipulator (joystick) and a liquid-crystal display to indicate all the
information needed, including a built-in clock / a real-time timer.
DAR operation features
The DAR records either in the sequential messages mode (one by one, the
number of messages is limited only by the DAR memory) or in the cycle buffer
mode (i.e. cyclically). The DAR can provide some memory size to the cycle
buffer. As soon as the provided memory space comes to the end, the DAR will
start recording into the record beginning (i.e. deleting the previously
recorded data). Therefore, the cycle mode is convenient if you want to have
fresh information for a certain period.
The DAR has a Voice Activating System (VAS) which effectively compresses
pauses in messages, therefore increasing the actual record duration.
Activating VAS allows the user to save memory in pauses; but the data about
time intervals is stored (and can be restored at further file processing
with the software supplied).
You may use your DAR for message recording, as well as a flash-disc at the
same time, to store and transfer data of any format.
B8 model
B8 model is produced in a plastic case.
Dimensions: 59x28x9 mm, weight: 20g. Battery: CR2450.
Maximum record duration: 1120 minutes.
Continuous operation duration:
-
in Record mode: up to 250
hours;
-
in Playback mode: up to
50 hours;
-
in Standby mode: 2 years;
-
in VAS Standby mode: 2500
hours.
B8 model of DAR uses
accessories of type 3.
DAR Record Quality
Edic-mini LCD DAR has several rates of voice compression which enables the
user to make records of different quality and to compromise the record
quality and duration.
The DAR provides for eight user settings for record parameters (profiles).
| 0 |
Extra high |
sample rate 16 kHz, linear
(without compression), 256 Kbit/s |
k=16 |
| 1 |
Super high |
sample rate 16 kHz,
logarithmic compression (16 LOG), 128 Kbit/s |
k=8 |
| 2 |
Normal |
sample rate 8 kHz,
logarithmic compression (16 LOG), 64 Kbit/s |
k=4 |
| 3 |
Medium |
sample rate 8 kHz,
modified 4-bit ADPCM, 32 Kbit/s |
k=2 |
| 4 |
Extra high VAS |
sample rate 16 kHz, linear
(without compression), VAS, 256 Kbit/s |
k=16* |
| 5 |
Super high VAS |
sample rate 16 kHz,
logarithmic compression (16 LOG), VAS, 128 Kbit/s |
k=8* |
| 6 |
Normal VAS |
sample rate 8 kHz,
logarithmic compression (16 LOG), VAS, 64 Kbit/s |
k=4* |
| 7 |
Medium VAS |
sample rate 16 kHz,
modified 4-bit ADPCM, VAS, 32 Kbit/s |
k=2* |
Software
The supplied USB adapter provides high-speed data exchange between the DAR
and PC (1.5 Mb). The software supplied on the CD makes it possible to save
the recorded messages as standard sound files, to set the DAR parameters and
to control admission to the DAR functions. Besides, with the software you
may set admission levels to the DAR functions from joystick. The admission
levels prevent data (or DAR settings) damage by unauthorized people.
The software features a user-friendly interface; no special skills are
required to connect the DAR.
Delivery set
1. Edic-Mini LCD digital voice recorder
2. Earphone
3. USB adapter
4. CD with software
5. 2 batteries
6. Operation manual
7. Package
Glossary
|
Antialiasing filter |
A low-frequency filter, which is connected
before the analogue input of the analogue-to-digital converter. It is
necessary to prevent possible distortions related to spectrum aliasing
during the AD converting. |
| Dynamic range |
The difference
between levels of the loudest and quietest sounds, evaluated in
decibels. |
|
Signal/noise ratio |
Determines the signal intensity relative
to the background noise of data transfer channel, evaluated in decibels |
| Sample rate |
The rate of
sampling at converting the analogue signal into digital. It is evaluated
in the number of samples per second or in hertz. For example, the sample
rate of the CD system is 44.1kHz. The lower the sample rate value, the
poorer the quality of the digital record, but smaller the record file
size. |
Technical parameters:
| Recording time in
ExtraLongPlay mode (modified 2-bit ADPCM, sample rate 8 kHz, 16 Kb\s) |
1120 min |
|
Voice storage capacity, hours |
18.7 |
|
Built-in FLASH memory size, MB |
128 |
|
Case |
Plastic |
|
Dimensions, mm |
59x28x9 |
|
Weight, grams |
20 |
| Supply voltage |
2,7... 3,2V |
|
Power source |
CR2450 |
| Operation temperature |
-20 ... +50 °C |
| Maximal
audio band: |
| At play back from PC |
100 ... 6000 Hz |
| At play back via earphone |
100 ... 3800 Hz |
| Audio sample rate |
16000, 8000, 4000 Hz |
| Codec resolution |
16 digits (using external
microphone the dynamic range is 18 digits) |
| Signal to Noise Ratio |
72 dB |
| Quality, format and data
recording density |
- Without compression
(linear), sample rate is 16 kHz, 256 Kbit/s, k=16
- Without compression (linear), sample rate is 8 kHz, 128 Kbit/s, k=8
- Without compression (linear), sample rate is 4 kHz, 64 Kbit/s, k=4
- Logarithmic compression, sample rate is 16 kHz, 128 Kbit/s, k=8
- Logarithmic compression, sample rate is 8 kHz, 64 Kbit/s, k=4
- Logarithmic compression, sample rate is 4 kHz, 32 Kbit/s, k=2
- Modified 4-bit ADPCM, sample rate is 8 kHz, 32 Kbit/s, k=2
- Modified 2-bit ADPCM, sample rate is 8 kHz, 16 Kbit/s, k=1
- Modified 4-bit ADPCM, sample rate is 4 kHz, 16 Kbit/s, k=1
- Modified 2-bit ADPCM, sample rate is 4 kHz, 8 Kbit/s, k=0.5
where k is the coefficient, showing how many times the maximum record
time decreases at record quality increase. |
| Data transfer rate via
USB-interface |
Up to 1,5 Mb\s |
| Current
consumption: |
| Stand-by mode (with LCD
on) |
0,14 mA |
| Stand-by mode (with LCD
off) |
0,014 mA |
| Record mode (depending on
the recording profile) |
1,5 mA - 3,6 mA |
| VAS mode, audio level is
lower than the threshold value |
Less than 0.2 mA |
| Built-in microphone
sensitivity |
7-9 m |
|
Battery life in record mode, hours |
250 |
|
Battery life in stand-by mode |
17520 |
|