The values that one can find in a wave file, e.g.
0.0036 0.0026 0.0174 0.0050 0.0026 0.0108 0.0154 -0.0114 -0.0006 0.0115
are - as I assume - relative values between -1 and 1, the range you normally see when watching a waveform in some audio editing program. Now, how are these relative values mapped when you playback a file? E.g. if there is a value of 0.5, does it mean playback at half of the maximal possible loudness? Is there some kind of reference value stored in the WAVE file to which the relative values refer to?
Another thing: In the example above there are 7 positive values follow by 2 negative values. So the membran vibrating in a speaker to create the sound is pressed longer in one direction than in the other direction, or how does one has to interpret this? Positive values are one direction of the vibration and negative ones are vibrations into another direction or am I wrong about this?
Thank you very much :-)