sound sensor by B JEETHANDIRAN

1. welcome

2. Labtalk
By
jeethandiran.B

3. What is sensor...?
A sensor is a device that measures a physical quantity and
converts it into a signal which can be ready by an observer by an
instrument.
Sensors are used in everyday objects such as touch-sensitive
elevator buttons and lamps which dim or brighten by touching the
base, besides innumerable applications of which most people are
never aware.

4. What is this...?

5. What is sound sensor…?
The Sound Detector is a small board
that combines a microphone and some
processing circuitry. It provides not only
an audio output, but also a binary
indication of the presence of sound,
and an analog representation of it's
amplitude.

6. Sound is the generalised name given to “acoustic
waves”. Audio Sound Transducers include both
input sensors, that convert sound into and
electrical signal such as a microphone, and output
actuators that convert the electrical signals back
into sound such as a loudspeaker.
How it is working…?

7. Schematic Diagram

8. Pin configuration

9. They are used for security systems.
It is easy to manipulate sound in real time.
Hence earlier recording is not needed.
They are easily affordable.
Wireless sound sensors provide great
freedom while speaking. Moreover it does
not require cabling compare to wired mic.
Advantages of Sound sensor

10. Disadvantages of Sound sensor
Sound files require more memory size.
Voice recognition software are not very
accurate compare to manual typing.
The wireless microphones have limited
coverage range.