[pygame] Obtain actual volume of sample being played

[Wyatt Olson <wyatt.olson@xxxxxxxxx>]

Hello,

Does anyone know if it is possible to obtain the actual volume of the 
sample being played at a given moment?  This is not the same as getting 
the volume level which was set earlier, on either the sample or the channel.

For instance, assume that I am playing a sample which starts at low 
volume (-70dB), increases to 0dB after 5 seconds, then fades out to 
-70dB again.  If I play that sample at volume = 1.0, I would want to be 
able to return an approximation of the actual dB value at the given 
time.  For instance, if I were to query it at 0 seconds, I would get 
0.000001; querying at 5 seconds would return 1.0; querying at 7.5 
seconds would give 0.5 or something.   Make sense?  I would want to have 
this controllable at the channel and / or sample level, not the mixer - 
I need to show each channel separately.  I don't care about linear / 
logarithmic conversions or anything... I essentially just need a number 
from 0 to 9 indicating very approximately how loud the sound is.

I want this information to display semi-accurate VU / peak meter 
information, based on actual samples.  This is for my slave software for 
an electronic drum set.  Currently I show VU information based on the 
velocity of a drum pad hit, which is decent, but it would be nice to use 
the actual sample information as well.

I have looked through the documentation, and I don't think it can be 
done, but I figured I may as well submit this question to the gurus on 
teh interwebs. 8-)

Cheers