Friday, September 22, 2006

Sound related Terms

The Sound is a propagation of vibration (with 20-20,000 Hz frequency) through the medium (air, liquid solid matters). It is a mechanical force which causes vibration of the tympanic membrane (eardrum).

Loudness of a sound is determined by pressure of sound waves puts on an eardrum. Measure unit is decibel (dB).
Hearing threshold is at 0 dB.
Normal Talking at 1m distance ...40-60 dB.
Major Road at 10m distance... 80-90 dB.
Prolonged exposion to 85 dB can cause hearing imparmient.
Short exposion to 120 dB can cause hearing damage.
Plane on the airport...120-140 dB.
Treshold of Pain...135 dB.

Hight of the sound is determined by frequency of sound waves.
High frequency means high sound.
The hearing range is between 20Hz to 20,000 Hz and it changes with age. Old people usually can't hear sounds over 16,000 Hz.
Sound out of this frequency range cannot be heard. Sound over 20,000 Hz is called Ultrasound, below 20 Hz is Infrasound.

Tone is a sound of a particular frequency. 'Middle C' has 262 Hz, 'high C' has 512 Hz.
Monophonic sound is composed from one tone
Polyphonic sound is composed from two or more tones.
Hiss is a sharp sibiliant sound like sustained 's'.
Noise can be defined as unwanted sound.
Resonance is a relatively high amplitude of vibration produced when a frequency of some source matches the natural frequency of other object.

What Happened to the Experiment ?

A few months ago I started an experiment using a tinnitus formula. The formula involved was in fact a high dosage of Gingko Biloba ( 240mg). I was advised to take 2 caps a day for a period of approx. 3 months. I did receive a lot of feedback from people and friends advising not to experiment using drugs but after careful thought and consultation with my doctor I decided to try anway. I figured "nothing from nothing leaves nothing" and since I had nothing to loose anyway I stated taking the capsules on a daily basis. So after 3 months of downing 2 tabs a day without missing any out, the results left a lot to be desired. I must admit the capsules did not harme me in any way but regardless of this the tinnitus remain sunchanged.
So...where does this leave me?
I have been speaking to many tinnitus victims lately and they all have one thing in common. Whenever taking tinnitus remedies or other drugs and therapies a pattern develops which is evident in the majority. Most tinnitus victims tend to be unpatient and expect results quicker than can be expected. This is no surprise when you stop to think of what these people are listeng to on a 24/7 basis. It is a fact that when someone taking capsules which promises Tinnitus relief they will expect something to happen which in fact beats the object itself. Waiting for results can be frustrating for someone who has paid anything in excess of $ 100,00 for their tinnitus remedies. When taking taking remedies or going through therapy one adapts an attitude of "great expectations". I found myself ckecking the tinnitus sound after only 5 days to see if it was changing. After 1 month I couldnt detect any difference but kept taking the caps anyway. I do remember even trying hard to detect a difference, in fact I even once made myself believe that the caps were having an positive effect on the tinnitus. After 3 months I conceeded and gave up. I still have the caps here but I think I´ll throw them and forget the whole matter.
This doesnt mean that a tinnitus remedy wont work for you though, it just didnt work for me.
I would strongly reccomend anyone to think about what they are doing and what results they expect before embarking on a tinnitus remedy therapy and be ready to accept the fact that taking caps MAY not work. Thats the thing about tinnitus I hate so much. One is always on the lookout for new therapies. One is always good bait !