Hi Jon,

> So you can see the peak amplitude is basically identical and the RMS power
> is within 1dB. The reason your SPL meter shows such a dramatic difference
> is probably due to the A-weighting performed by the meter. The New
Asteroid
> has most of its energy below 200 Hz while with New Pengo the energy is
> concentrated between 1-2 kHz. The A-weighting curve is much more
sensitive
> to 1-2k than it is to low frequencies (see
> http://sound.westhost.com/project17.htm for a graph).

I used the A-weighting because it says it "more reflects" what the volume
level is to the human ear. I realize there is probably a debate about
A-weighting. To me, pengo sounds much louder than the asteroids does. What
can I do in software to make both of them sound about the same volume level?

BTW, I'm having a real hard time getting why the RMS power can be equated to
the volume you hear. If you had a wav file that had only one sample in it,
say 10000, you wouldn't hear anything because there is no difference to make
the sound, yet the power it used was significant...

Thanks,

SA Dev