Is beaming affected by volume?

[Cal Weldon]

The reason I'm asking is that when I turn up the volume it seems to lessen.
I'm wondering if this is because more air is being moved by the drivers creating a splatter efect in it's own radiation? I have a 7" running from 100 to 3500Hz and to my ears it sure seems that things widen out when I give 'er a little gas.

Rooms effects aside, is there any relation? I guess what I'm asking is dispersion affected by air resistance and/or are my ears fooling me?

Cal

[GM]

Greets!

At a Deep Purple concert I learned our ear's response flattens out in its acute BW with increasing SPL until at very high SPLs even stereo sounds like a 'wall of sound'.

GM

[Ron E]

Dispersion doesn't change, but distortion does, and room effects get more noticeable at high volumes.

[Cal Weldon]

Originally posted by GM
I learned our ear's response flattens out in its acute BW with increasing SPL until at very high SPLs even stereo sounds like a 'wall of sound'.

Thanks GM. That might be the first time I've fully understood one of your your answers.

Originally posted by Ron E
room effects get more noticeable at high volumes.

That's kinda what I was wondering, further "tests" have hinted that.

[JMB]

Localization in the ears occurs through the ears ability to distinguish comparitive differences in phase and amplitude of the signal received at each ear. As the amplitude gets louder, the ear becomes less sensitive in it's ability to distinguish amplitude differences (neural [nerve] impulses become saturated and can't respond in the same proportion to the stimulus as they could as they were further from their saturation point). This impairs their ability to localize a sound source.

Hope this helps to explain it.

Jay