Thread Subject: 1194.23 (i) Hearing Aid coupling & Interference -Not just for Telecom

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From: Gregg Vanderheiden
Date: Sun, Apr 08 2007 5:25 PM
Subject: 1194.23 (i) Hearing Aid coupling & Interference -Not just for Telecom

The hearing aid coupling and interference provisions should not just apply
to telephones. They should apply any time a product has a 'speaker' that
is held to the ear in normal operation. For example, exhibits with
earcups, ATM with handsets, Information booths with handsets or earcups.



Conversely, a speakerphone that has no handset should not have to meet this
requirement.



Also, this shouldn't apply to headphones and headsets that plug into a
standard user accessible jack on a product since a person with a hearing aid
could use a neckloop instead plugging it into the same user accessible jack.






Suggest rewording these to begin and end as follows



(h) "Where a product delivers output by an audio transducer which is
normally held up to the ear, a means for effective magnetic wireless
coupling to hearing technologies shall be provided that allows the user of
such technologies to effectively utilize the telecommunication product.]
This does not include headphones and headsets that plug into a standard user
accessible jack on a product.



(i) "Where a product delivers output by an audio transducer which is
normally held up to the ear, [Interference to hearing technologies
(including hearing aids, cochlear implants, and assistive listening devices)
shall be reduced to the lowest possible level that allows a user of hearing
technologies to utilize the product. Should metrics be added like the TIA
cordless standards?? or a reference to ANSI/IEEE?? or other standards?].
This does not include headphones and headsets that plug into a standard user
accessible jack on a product.




Gregg

------------------------

Gregg C Vanderheiden Ph.D.
Professor - Depts of Ind. Engr. & BioMed Engr.
Director - Trace R & D Center
University of Wisconsin-Madison
< <http://trace.wisc.edu/> http://trace.wisc.edu/> FAX 608/262-8848

DSS Player at http://tinyurl.com/dho6b

<http://trace.wisc.edu:8080/mailman/listinfo/>

From: Phill Jenkins
Date: Sun, Apr 08 2007 10:20 PM
Subject: Re: 1194.23 (i) Hearing Aid coupling & Interference - Not just for Telecom

> shall be reduced to the lowest possible level

I agree this should be replaced with metrics - but shouldn't the
telecommunications subcommittee be working on this issue/suggestion?

Regards,
Phill Jenkins
IBM Research - Human Ability & Accessibility Center
http://www.ibm.com/able

From: Gregg Vanderheiden
Date: Sun, Apr 08 2007 11:55 PM
Subject: Re: 1194.23 (i) Hearing Aid coupling &Interference -Not just for Telecom

Hi Phill,



You are correct.

If you look at the address line on the original posting - you will see that
it was posted to the telecom group.



It was only copied to General and Hardware group since the issue overlaps
non-telecom products as well. So that makes it fall into Hardware or
General group as well. Classically if something crosses other groups it
falls to General but I think - other than making sure it will also apply
outside of telecom we should leave it to telecom who have been already
looking at this issue.



So it is mostly an FYI to the other groups til telecom is done. Then they
can check to see if that wording works across the board.




Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.






_____


From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Phill Jenkins
Sent: Sunday, April 08, 2007 11:14 PM
To: TEITAC General Interface Accessibility Subcommittee
Subject: Re: [teitac-general] 1194.23 (i) Hearing Aid coupling &
Interference -Not just for Telecom


> shall be reduced to the lowest possible level

I agree this should be replaced with metrics - but shouldn't the
telecommunications subcommittee be working on this issue/suggestion?

Regards,
Phill Jenkins
IBM Research - Human Ability & Accessibility Center
http://www.ibm.com/able