If it is a raido it can be lowered However sounds like a consturction site cannot be lowered There are many things that can be lowered or not lowered
proven
OK for light exercise. Much too high at rest.
effect of high frequency sounds
No, high frequencies are heard as high pitched treble sounds.
change the muffler
high or low sounds
the violin makes a low or high sounds?
By disconnecting the horn from the battery
pitch.
Low pitched sounds have a low frequency. Higher sounds have high frequency, that is the number of waves passing a point per second is greater.
limestone is used to reduce the phosphurus
Reduce current - reduce power.
High