"To raise the volume" means to make the sound louder or increase the level of sound.
Sentences with «to raise the volume»
Can you somehow raise the volume on these older topics? (nutritionfacts.org)
Objective is to bring my over 15 years of skills, work with the team that is in place and raise the volume of sales and awareness for the company I would represent. (members.climber.com)
If the dog starts shaking at a certain volume, do not raise the volume any higher. (dogtrainingbasics.com)