Here is an odd thing I notice when attending public meetings. It is a kind of ‘cueing-in’ for sounds. And I am now wondering if this explains my latest audiology results.
Sometimes at meetings I want to say something. But I need to know nobody else is speaking, so I don’t interrupt.
The odd thing is that often when I look round the room and see that someone else is speaking, suddenly I can detect the sounds of their speech.
Before, all I detected was quiet. But if I am cued that a sound is supposed to be present, I can somehow target it and use it.
Anyone else had this experience?
According to my latest audiology test, I only detect ‘environmental’ sounds. Officially, I no longer have detectable responses in the speech range.
But when I took the test I had some really odd feelings as if I knew there was a test sound present just couldn’t say if I was imagining it or not.
I wonder if I could have picked out those odd feelings as sounds if I knew there was a signal intended at that moment – rather like I can when looking round a room.
With my existing hearing aids, I can in fact still pick up a lot of speech range sounds, as I happily proved to myself talking to people I never met before over the Christmas period.
Of course I am at the limit with the audiology tests, and I wonder if I might have a more realistic chart if they tested down to 120 db.
Do other people here have experiences like mine? And have they had arguments with audiologists on the accuracy of tests at these limits?
It would be really helpful to know before they next start talking about implants for me…
Edis Bevan went deaf when he was about four back in the days when signing was actively discouraged. He is a former lecturer in the Technology Faculty of the Open University and was one of the first deaf Open University tutors. He lives in Milton Keynes.
Check out what Limping Chicken’s supporters provide:
- Phonak: innovative technology and products in hearing acoustics.
- Bellman: hearing loss solutions
- Ai-Live: Live captions and transcripts.
- Deaf Umbrella: sign language interpreting and communications support.
- 121 Captions: captioning and speech-to-text services.
- Signworld: online BSL learning and teaching materials.
- STAGETEXT: theatre captioning.
- Krazy Kat: visual theatre with BSL.
- SignHealth: healthcare support for Deaf people.
- Deafinitely Theatre: theatre from a Deaf perspective.
- Lipspeaker UK: specialist lipspeaking support.
- SDHH: Deaf television programmes online.
- Sign Solutions:, language and learning.
- Lexicon Signstream: BSL interpreting and communication services.
- Action Deafness Communications: sign language and Red Dot online video interpreting.
- Hamilton Lodge School in Brighton: education for Deaf children.
- RAD Deaf Law Centre: legal advice for Deaf people.
Robert Mandara
March 13, 2014
An audiogram is only useful up to a point. It only shows the quietest level at which you can hear each frequency on the day of the test. The exact values vary depending on various factors including your health and who does the testing. The audiogram doesn’t say anything about how loud a sound you can stand or your ability to discriminate words.
Even if your audiologist is unable to test down to 120dB with regular headphones, some modern hearing aid programming software has built-in hearing testing functionality. This allows audiologists to test your hearing with your hearing aids in, down to about 130dB depending on the frequency. Phonak hearing aids have this functionality for example.
I experience something similar to you when I listen to music. Often I can hear that there’s music but can’t indentify the track even if it’s something I know well. However, if I look at the tracklisting I can then recognise the music and lock onto it. It seems we need extra clues to cue us in.
listenersmanifesto
March 13, 2014
Healthy ears are constantly being tuned by the Outer Hair Cells – when we have a hypothesis concerning what we ‘might’ hear then we are more likely to hear it. However people with SNHL generally loose their Outer Hair Cell functioning before loosing their receptor (IHC) functioning. Perhaps in your case this hasn’t occurred?
Audiologists don’t talk about hypothesis-driven tuning because they are trained to think entirely in bottom-up devices such as hearing aids, and ignore research on top-down perception.
If you’re interested in this question look at http://neurocontrolledlistening.wordpress.com/
which (I admit) I run.
Andy, not him, me.
March 13, 2014
I agree with all the above. The standard hearing test is really only meant to establish thresholds within normally accepted limits. They don’t test for all hearing, just within that range.
I can hear rock bands quite well if they are loud enough, certainly far better than I can with a hearing aid and so I have felt for quite a while that I have hearing outside of the normally measured range. On the other hand the CI provides a much wider range of sound than I can get with unaided hearing.
I think that the brain learns to lock on to a sound once it has identified it. There’s some kind of phenomenon where the brain is able to supply sounds that are in fact missing from what is being heard. If it knows what is missing it will sometimes fill in a bit.
I can’t remember what that is called now…
Editor
March 13, 2014
The McGurk Effect (From Andy)