SpyTechnology LR32 User Manual
LR32 audio recorder
User manual
Version 1.01
This recorder let‘s you to record any audio or human conversation in high quality and store all
on micro SDHC card. The state of art technology with very low power consumption allows
you to record very long records when the battery is powering the module. This recorder is
equipped with very high sensitive microphone and wide dynamic range and is able to record
conversation from distance over 30 feet (10 meters). All stored recordings are accessible on
micro SDHC card by using included recording manager developed for Windows operating
system. This software includes fast overview of each record and simple editing functions,
including serach for active sound in long records. For protection of stored data it is possible to
set password access for all stored recordings. Integrated real time clock should start recording
in any specific period of each day or at any specific date. All recorded data are stored with
time marks, which gives you very good overview in case of long time recording.
Technical data:
Dimension: 17,5x27x3mm
Power supply voltage: 2,8-6,0V
Maximum recording time: over 70days (with 16GB card)
Card type: Micro SDHC card
Signal-to-noise ratio: 65dB
Storage format: 16bit uncompressed, logaritmic, 4bit ADPCM or
2bit ADPCM
Sample rate: 44kHz, 22kHz, 16kHz, 11kHz, 8kHz, 5.5kHz
Bit width: 16bit
Built-in microphone sensitivity: 8-10m
Power consumption in stand-by mode: <50uA
Power consumption in VAS mode: 1,6mA at 3,0V
Voice activated recording yes
AGC function user selectable automatic gain control or fixed
microphone gain
Exporting format: by using included software, WAV format
Scheduled recording: selectable daily period, week period or calendar
Operating mode select: slide switch
Module description
Power consumption in different recording modes based on 3.0V voltage supply in [mA]:
Sample rate none Ulaw 4bit
ADPCM
5,5kHz 3mA 1,85mA 1,6mA 1,6mA
8kHz 4,2mA 2,5m A 2,2mA 1,7mA
11kHz 5,2mA 2,9mA 2,6mA 2mA
16kHz 7,3mA 3,3mA 3,1mA 2,2mA
22kHz 9,4mA 4,8mA
44kHz 17,8mA 9,6mA
2bit ADPCM
The current is calculated when the 3,0V voltage is used. When you have a higher voltage or
for example 6,0V batteries, the consumption is decreased with the increasing voltage in
proportional way.
B attery life for different operating modes in continuous recording mode with CR-123 type
battery [in days]:
Sample rate none uLaw 4bit
ADPCM
5,5kHz 18days 29days 33days 33days
8kHz 12days 21days 24days 32days
11kHz 10days 18days 20days 27days
16kHz 7days 16days 17days 24days
22kHz 5days 11days
44kHz 3days 5days
2bit ADPCM
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