What is your high frequency hearing cutoff?

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Hello Kevin,
14 kHz are absolutely amazing! What hearing aids you are using?
I'm 55 and about 65 dB down at 6 kHz and 60 dB at 8 kHz on the right ear and 80 dB at 6 kHz and 68 dB at 8 kHz on the left ear. My hearing aids are Phonak Audeo V 50 and they are really good - but 14 kHz is not possible.
 
Hello Kevin,
14 kHz is absolutely amazing! What hearing aids are you using?
I'm 55 years old and about 65 dB down at 6 kHz and 60 dB at 8 kHz on the right ear and 80 dB at 6 kHz and 68 dB at 8 kHz on the left ear. I'm using the Phonak Audeo V 50, but 14 kHz is not possible!
Rainer
 
Hello Kevin,
14 kHz is absolutely amazing! What hearing aids are you using?
I'm 55 years old and about 65 dB down at 6 kHz and 60 dB at 8 kHz on the right ear and 80 dB at 6 kHz and 68 dB at 8 kHz on the left ear. I'm using the Phonak Audeo V 50, but 14 kHz is not possible!
Rainer

Mine are HearSource All Rite (behind the ear open style)...unfortunately they are not capable of correcting a loss as significant as yours, my hearing loss is about at the limit of what they can cover.
 
I'm 47 and have been a motorcyclist for years. I cant hear past mid 18k but 14.4 - 15.2K I have a dip in my hearing.
My wife is 43 and not been around anything noisier than the local warmart. She heard just around 19k but does not have that dip @14.4k.
But my friend thinks there is a weird artifact if I try these hearing tests out of Youtube. No idea.
Cool.
Srinath.
 
OK, but I just can't see how it is possible. Let's examine the evidence:
1. You measured your hearing, and it tops out at 16kHz
2. You measured a signal that is a combination of 15kHz (which you can just hear) and 45kHz as a harmonic (which I assume is lower in level)
3. You claim you "heard" the 45kHz tone

I can't see how 1 and 3 are not contradictory. If you cannot hear a pure tone of 45kHz then reproducing it along with another tone that you can (barely) hear should not make you hear it. I can only conclude that there is something else that you must be "hearing". I put forward a couple of possibilities, and you provided evidence that it can't be the result of IM distortion. So it could be the envelope, or possibly something else, but I don't know of a hearing mechanism that lets you hear a frequency at a low level that you cannot other wise hear at any sound power level. I don't think that an FFT type analyzer would show anything at the envelope frequency for a combination of two different frequencies (if there is no IMD generated).

How much lower in amplitude was the 45kHz distortion product?

let me rephrase it . i can hear the difference between the sine and square waveform at 15kHz. the only difference is 45khz and higher harmonics.
 
When I came back up to Chicago after attending school in Peoria, Illinois and working at Caterpillar I got a job at Beltone as a mechanical design engineer. My job was to squeeze all the hearing aid innards into the hearing aid shell. We were also the test subjects for testing new designs for the hearing aid itself.

I sorta remember being taught that anything higher in frequency than 12 to 14 kHz was what gave sounds more distinctive clarity.
 
I'm knocking at the door of 60 and so far, make it to just over 17KHz, so I have no complaints.
mlloyd1

Hi,

You shouldn't have, as that sort of hearing heading towards 60
is pretty much as rare as the proverbial rocking horse droppings.

Mid fifties my hearing drops off above 13KHz, but seems to be
flat up to that point. I also have what is called mild general
hearing loss, its not as sensitive as when I was younger.

With age you generally progressively lose the top end
and become somewhat deafer. Though you can easily
compensate for the latter within limits, you do also
lose acuteness of hearing, the ability to hear really
quiet sounds, the audible thresholds increase.

Generally with age, things like TV and Radio will
have a higher minimum comfortable clarity level.

rgds, sreten.
 
I sorta remember being taught that anything higher in frequency
than 12 to 14 kHz was what gave sounds more distinctive clarity.

Hi,

Not true. In fact whilst a 4 KHz top end is adequate for telephony,
its the range 4 KHz to 12/14 KHz that gives much more clarity.

The very basic difference between AM and FM radio.

rgds, sreten.
 
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At 65 I have moderate to severe hearing loss. I was grounded from flight duty while in the NAVY for "Sensory Neural hearing Loss".

Without hearing aids, I'm good to 9K with dips between4K and 7K. With hearing aids I the dips are reduced, and I still make it to 9K.
 
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