Understanding Audio Recording Technologies

All sounds are made by ____ objects.

• warm
• cold
• reflecting
• vibrating

What does the analogy of a pencil vibrating against paper represent in the context of sound recording?

• The loudness of sound

• The movement of sound waves

• The color of the sound

• The speed of sound

What major development in the 1800s allowed for the first mechanical recording of sound?

• The development of the radio

• The creation of the gramophone

• The invention of the microphone

• The use of magnetic tape

What does the diaphragm in a gramophone do?

• It converts sound to electricity

• It spins the record

• It vibrates to create sound waves

• It amplifies the sound

What was the primary purpose of the big horn in the original gramophones?

• To store sound

• To amplify sound

• To record sound

• To convert sound to electricity

What is the function of the needle in a record player?

• It amplifies sound

• It stores sound

• It reads digital data

• It vibrates to produce sound

What role do magnets play in cassette tape technology?

• They amplify the sound

• They power the playback device

• They erase the tape

• They create magnetic fields to record sound

How does a boombox play back the sound from a cassette tape?

• By converting digital signals to sound

• By converting magnetic patterns back into electrical signals

• By reading vibrations directly from the tape

• By using a laser to read the tape

How is sound stored on a CD?

• As digital data represented by pits and lands

• As grooves and bumps

• As analog signals

• As magnetic patterns

What does a digital-to-analog converter (DAC) do in a CD player?

• It amplifies the sound

• It converts digital data back into sound

• It stores digital data

• It reads the CD