Y8 Audacity Lesson 1

What is this

• Sound wave

• Sea wave

• Hello wave

• Air wave

Which of these are audio files

• .mp3

• .wav

• .wma

• .aac

• all of these

Amplitude of the wave

• This shows the volume of the sound (how loud it is)

• This shows the pitch/how high the note is

• This shows the tempo

The frequency of the wave:

• Shows the pitch (how high the note is)

• Shows the volume

• shows the tempo

Frequency is measured in:

• Hz (cycles per second)

• ohms

• volts

Changing the pitch is used:

• for auto tuning - where a singer's voice is adjusted so they are singing in tune.

• used to speed up terms and conditions in an advert without making the voice higher

• might be used to suggest the speaker is in a large enclosed space or a long way away.

Changing the tempo:

• for auto tuning - where a singer's voice is adjusted so they are singing in tune.

• used to speed up terms and conditions in an advert without making the voice higher

• might be used to suggest the speaker is in a large enclosed space or a long way away.

Echo effect:

• for auto tuning - where a singer's voice is adjusted so they are singing in tune.

• used to speed up terms and conditions in an advert without making the voice higher

• might be used to suggest the speaker is in a large enclosed space or a long way away.

Sound is put into computer form by:

• Sampling

• Testing

• Adjusting

Sound is stored on the computer as

• binary values

• computer values

• sound values