Wednesday, February 12, 2014
Loud Music and justice
Radio news keeps mentioning a trial in Florida. Young dickheads were harassing an older dude and playing loud music. Older dude got annoyed and Darwined the young dickheads. Well-deserved, and the only form of justice that still exists in this fucked Satan-poisoned former so-called "nation".
Apparently the persecution is claiming that the older dude had impaired hearing, so he couldn't be bothered by loud music. This is EXACTLY WRONG. I hope the defense has an expert to counter this nonsense.
Here's why it's wrong. Our perceptual system is based solely on proportions and changes.
Let's take this graph as a baseline for normal hearing. Sound gets louder; your input to the cochlea gets louder in proportion; the perceptual system follows along.
If you have impaired hearing, your physical input starts at a higher level. You don't hear the fainter sounds at all. The perceptual system tries to maintain its full range, but it has to start where the hearing starts.
Result: Perceived loudness grows faster than it would in a normal ear.
This phenomenon is usually called recruitment, which is a poorly chosen word. It would have been better to call it something like 'stretched loudness'.
¶ 7:23 PM 
If you have impaired hearing, your physical input starts at a higher level. You don't hear the fainter sounds at all. The perceptual system tries to maintain its full range, but it has to start where the hearing starts.
Result: Perceived loudness grows faster than it would in a normal ear.
This phenomenon is usually called recruitment, which is a poorly chosen word. It would have been better to call it something like 'stretched loudness'.
¶ 7:23 PM
