SoundEar AudioAlarm User manual

MANUAL
On the supplied SD Card you can download
the MP3 audio file that suits your applica-
tion. It can be a short message, an alarm
sound, or a piece of music.
We would normally recommend that the
audio file is not recorded too high as it
may cause distortion, and that the audio
sequence is of no longer duration than
max 10 seconds.
The Audio Alarm can be mounted on the
wall with the included Velcro tapes.
•Supports MP3 and WAV decoding.
•Supports FAT16 and FAT32 le system.
•24-bit DAC output and supports dynamic range 90dB
and SNR 85dB.
•Supports AD key control mode and UART RS232 serial
control mode.
•Supports maximum 32GB micro SD card and 32GB USB
ash drive.
•Supports advertisement insertion.
•Supports random playback.
•Built-in a 3 watts amplier that can direct drive a
4ohms/8ohms 3 watts speaker.
•30 levels adjustable volume, and 6 levels adjustable EQ.
1.3. Technical Parameters
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SoundEar AudioAlarm
Product Features
Congratulations with your new AudioAlarm

SoundEar AudioAlarm
Power and Connection
SoundEar AudioAlarm – Specications
www.soundear.com
Audio Format: MP3
Supports: 11172-3 and ISO13813-3 layer
3 audio decoding
Supports sampling rate: (KHZ):8/11.025/12/16/22.05/24/32/44.1/48
UART Port: Standard serial port and 3.3V TTL level
Working Voltage: DC3.3~5.0V; Typical:DC4.2V
Rated Current: <15mA(without USB ash drive)
Operating Temperature: -40~+80°C
Humidity: 5%~95%
Measurement: 8,45 cm x 7,94 cm x 3,82 cm
Volume:
SW1: turns up the volume
SW2: turns down the volume
Number changes:
SW3+SW1 (hold SW3 down):
changes number upwards.
SW3+SW2 (hold SW3 down):
changes number down.
Light emitting diode:
•Green flashes = no danger
•Red flashes = Alarm
•Blue flashes = change of volume
•Short red flashes = change of number
Volume, Number changes, Light emitting diode
SW1 SW2 SW3 SC CARD
Diode
MANUAL
1. Connect the Soundear AudioAlarm to the Soundear
with the supplied 2.5 mm jack cable. Use the Soundbuster
output on the Soundear.
2. Connect power to Soundear (5V)
3. Connect power to the AudioAlarm (5V)
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2
3