Ron Natalie wrote:
Bob Noel wrote:

Thanks in advance.

The speed of sound varies with temperature alone.


The speed of sound varies with temperature and type of medium.

The speed of sound in air varies almost solely with
temperature. For other types of mediums, the temperature is
less of a factor. The general formula for the speed of sound
is the density divided by the bulk modulus. The issue is that
with gases the other variables in the equation all cancel each
other out.

In water for example, density is a MAJOR factor. The speed
of sound in salt water is faster than fresh water in addition
to temperature.

Commpressibility is the major factor. Water isn't very compressible
and transmits sound quite well, but air is and sound dissipates.
Frequency dispersion which has to do with how well various frequencies
are transmitted, affects how much the receiver will understand what is
being sent. It is an exceedingly complicated phenomenom -- ask any
sonar designer or a Navy weapons person.