volumechange
nounUK /ˈvɒljuːm tʃeɪndʒ/
US /ˈvɑːljuːm tʃeɪndʒ/
A volume change is when the loudness of a sound gets louder or softer.
You can hear a volume change in the song when the music suddenly gets quiet.
OTHER MEANINGS
2. A change in how much space something takes up.
The balloon showed a volume change as it grew bigger with air.
3. A change in the amount of something, like how much is in a container.
The volume change in the tank was easy to see on the gauge.
4. A change in the loudness setting on a device.
A quick volume change on the TV made the movie easier to hear.