Thread Subject: Re: 2.2-C Audio Connection

Note

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From: Gregg Vanderheiden
Date: Mon, Oct 29 2007 9:50 AM

FYI



Here is version 3 with the notes attached for those sorting this out from
different product lines.






VERSION 3


2.2-C - Audio Connection

When products provide auditory output beyond simple tonal feedback or
signaling, one of the following must be true:

(a) Auditory output is available via audio transducer that is designed to be
held up to the ear that meets 2.2-A (Magnetic Coupling), 2.2-B (Interference
with Hearing Device), and 2.2-E (Volume - gain) and product does not require
simultaneous use of keyboard; or

(b) A standard 2.5mm or 3.5mm audio jack at the standard signal levels used
for headphones/headsets is provided or

(c) Product is a not designed to be located in a public location and an
adapter from the product's audio output format to a 2.5mm or 3.5mm phone
jack is commonly available or available from the manufacturer.

Note: RJ-9, USB, and Bluetooth connections all have commonly available
adapters. Products (not designed for public locations) with these or other
forms of audio connection that have adapters would meet 2.2-C-(c)



Rationale

* public phones have amplification and coupling and that meets needs
of almost all users so shouldn't need a jack
* users should not be required to carry 'all' adapters with them so
public systems should not require them to have an adapter to use the product
(other than a simple 2.5 to 3.5 or 3.5 to 2.5 adapter)
* RJ-9, USB, RCA, and Bluetooth connections all have commonly
available adapters. Note was added since there was concern that unless in a
note, purchasing agents may not recognize it as allowable.
* Addresses the issue of "private listening' which is provided via the
standard handset.
* Kiosks with keyboards usually require blind people to have both
hands free.



How it would apply

* public phones would use (a)
* office phones could use (b) but would likely use (c)
* computers with build in speech conversation could use (b) or (c)
* televisions could use (b) or (c)
* Kiosks without keyboards could use (a) or (b)
* Kiosks WITH keyboards would have to use (b) (or, of course, both a
and b)








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






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Subject: [teitac-telecom] 2.2-C Audio Connection
Importance: High

All,

Per the last TEITAC con-call, the three proposals for the Audio Connection
language are presented below. Some of the concerns voiced include the
complexity and specificity in the language as it has evolved. The telecom,
hardware, and closed subcommittee's have been cc'd for technical comment.
The TEITAC committee needs to determine the next step relative to which
version or versions to propose for the draft.

Version 3 is the most recent proposal that should be reviewed. Due to the
complexity that has arisen around this requirement due to it's impact on
multiple products and conditions (public and private) please review and
provide comment including a vote "for" or "against" version 3.

Many thanks,

Rob

2.2-C - Audio Connection

Version 1:

When products provide auditory output beyond simple tonal feedback or
signaling, the audio signal must be provided at a standard signal level
through an industry standard connection that will allow for private
listening.

* If the product is a public-shared product then the connection must
be via a standard 2.5mm or 3.5mm audio jack.

* If the product is personal-private product then the connection can
be wired or wireless as long as a 2.5mm or 3.5mm phone jack adapter is
available from the manufacturer.

Alternate wording for clarity

* Public-shared products must provide the connection via a standard
2.5mm or 3.5mm audio jack.

* Personal-private products may provide either a wired or wireless
connection. A wired connection must be via a standard 2.5mm or 3.5mm audio
jack. A wireless connection may be used as long as a 2.5mm or 3.5mm phone
jack adapter is available from the manufacturer.

Version 2, posted to plenary email Oct 19, 2007:

When products provide auditory output beyond simple tonal feedback or
signaling, the audio signal must be provided through an industry standard
connection that will allow for private listening.

* Public-shared products must provide the connection via a standard
2.5mm or 3.5mm phone jack or RCA audio jack.

* Personal-private products must provide either a 2.5mm or 3.5mm phone
jack or a wired or wireless connection that has a 2.5mm or 3.5mm phone jack
adapter that is commonly available.

Version 3, posted to plenary email Oct 20, 2007:

When products provide auditory output beyond simple tonal feedback or
signaling, one of the following must be true:

1. Conforming Handset: Auditory output is available via audio
transducer that is designed to be held up to the ear that meets 2.2-A
(Magnetic Coupling), 2.2-B (Interference with Hearing Device), and 2.2-E
(Volume - gain) and product does not require simultaneous use of keyboard;
or

2. Phone Jack: A standard 2.5mm or 3.5mm audio jack for
headphones/headsets is provided or

3. Any Connection with Adapter avail: Product is a not designed to be
located in a public location and an adapter from the product's audio output
format to a 2.5mm or 3.5mm phone jack is commonly available or available
from the manufacturer.

4. Public Display only: Product is designed for public audio or
audio-video display only and there is a standard audio output on the
product-system (which can be but does not need to be accessible to the
public).

* Note: RJ-9, RCA, USB, and Bluetooth connections all have commonly
available adapters. Products (not designed for public locations) with these
or other forms of audio connection that have adapters would meet 2.2-C-(c)

* Note: Public Display systems need to meet other provisions in the
guidelines including the ability to display captions and supplemental audio.

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