Don't you think she would have suffered the same fate if she had listened to the same sounds through a speaker rather than a headphone (configured such that the same sound waves hit her ear drums)?
I don't believe so Greg. As I've mentioned many times in this forum, many people have contacted me that have used headphones at low level and their tinnitus has become worse. There are many posts in this forum from people reporting the same. It is also true not everyone with tinnitus is adversely affected by headphone use. I am an Audiophile and before the onset of my tinnitus 20 years ago, used to listen to music through high quality headphones although not exclusively.
In my opinion, there is difference listening to music through headphones compared to listening to music that is delivered by speakers at some distance away. With headphones, the music only has one direction to go and that is down the ear canal and hits the ear-drum and cochlear etc. Music from a speaker, the sound waves are absorbed and reflected before hitting the ear drum; it is not a direct sound as when using headphones. However, one still has to be careful of loud sound.
The lady in question had no problems listening to her radio or music system with speakers. I will never forget the evening she phoned me and was in a vey emotional state. Following the advice from her Audiologist and listening to music through headphones, at low level that made her tinnitus and hyperacusis more intrusive.
In 2008 my tinnitus increased to insurmountable levels and it took 4 years to habituate for the 2nd time in 20 years. I am unable to use a computer in the conventional way. Whether it's a laptop or desktop tower, they have to be placed in one room and I use a wireless keyboard, mouse, and monitor in another room. If I use a laptop or decktop PC in the normal way, withing 2 days my tinnitus reaches excruciating levels. It is so severe, I have to take clonazepam and go to bed and hope it calms down. I have met other people with severe tinnitus that are also affected by near-field computer use and have done the same as me. My hearing therapist has tinnitus patients that are affected by near-field computer use.
Some people say the EMF (electro magnetic field) emitted my all computers affects the inner ear in some people with tinnitus and causes the intensity to increase. EMF from a computer affecting some people with tinnitus is documented on the internet.
Many people will only believe in something if there is concrete evidence or scientific proof. Tinnitus is a very complex condition and what might affect one person might not affect another. Over the years I have been contacted by people with tinnitus that use headphones and listen to music at low level, and noticed their tinnitus becoming more intrusive. In the majority of these cases, the tinnitus was originally caused by exposure to loud noise and hyperacusis was also present. I believe once the auditory system has been subjected to loud noise trauma and the result is tinnitus and hyperacusis, the cochlear is more sensitive to sound than before even after habituation has been reached.
I have no scientific data or proof, to back up what I'm saying about headphone use and tinnitus or computers and tinnitus. All I have is my personal experience and people that have contacted me regretting they had returned to using headphones. All I will say to anyone that has tinnitus and especially if it was caused by loud noise exposure, and they decide to use headphones, just be very careful.
Michael