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# renpy.music.set_volume

Function: | renpy.music.set_volume | (volume, channel=7):

This sets the volume of the given channel. The volume is a number between 0.0 and #0, and is interpreted as a fraction of the mixer volume for the channel.

This value takes effect immediately, and is persistent through rollback, menu transitions, and game saves / loads.

## Example

        # Start some music playing in the background
        $ renpy.music.play("mozart.ogg")

        "Let's lower the music volume by half"

        # Lower the music volume by half
        $ renpy.music.set_volume(0.5, channel=7)

        "Let's set back the music volume to its original volume number"

        # Set back the music volume to its original volume number
        $ renpy.music.set_volume(1.0, channel=7)

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