Sound

WHAT IS THE ELEMENT THAT CONVERTS THE ANALOGUE SIGNAL INTO A DIGITAL SIGNAL CALLED?

• Converter

• Encoder

• Adaptor

WHAT CONDITIONS ARE NECESSARY FOR A SOUND TO BE PRODUCED?

• There must be a propagation medium (atmosphere).

• That there is a cause of the pressure variation (emitter)

• Both options are correct

WHICH OF THE FOLLOWING CHARACTERISTICS ARE SPECIFIC TO CIRCUIT SWITCHING?

• Dedicated means

• Guaranteed performance

• Both options are correct

WHICH OF THE FOLLOWING CHARACTERISTICS ARE SPECIFIC TO PACKET SWITCHING?

• Shared means

• Guaranteed performance

• Both options are correct

HOW CAN VOICE BE DEFINED?

• Voltage variation

• Current variation

• Sound pressure variation

A MICROPHONE CONSISTS OF….

• The TAM and the TEM

• The TAM and the TME

• Only TAM

WHAT WOULD BE THE FUNCTION OF THE MICROPHONE?

• converting electrical signal variations into acoustic pressure variations

• converting acoustic pressure variations into electrical signal variations

• Both options are correct

WHAT IS THE TIME BETWEEN TWO IDENTICAL POSITIONS OF A SOUND WAVE CALLED?

• Amplitude

• Frequency

• Period

ONCE THE VOICE (SOUND) HAS BEEN CONVERTED INTO AN ELECTRICAL SIGNAL, IN WHAT WAYS CAN IT BE TRANSMITTED TO THE DESTINATION?

• Analogue

• Digitally

• Synchronously

• The first two options are correct

A DIGITAL SIGNAL IS COMPOSED OF……………. VALUES

• Continuous

• Discrete

• Both options are correct