v3_set_volume_master()
void v3_set_volume_master(int level);
Set the volume for all users. The internal amplifier is somewhat logarithmic, so a value of 40 is roughly half as loud as a value of 79.
Arguments
| Type | Description |
| uint8_t level | The volume level to set. Valid values are 0 to 148. A value of 79 is normal unamplified volume (100%) |
