Thread Subject: FW: 2.2-D Volume

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From: Gregg Vanderheiden
Date: Mon, Jan 07 2008 10:50 PM
Subject: FW: 2.2-D Volume

Version 4 builds on Version 3 but fixes some things



I guess it's title is

Version 4 (Version 3 with Gregg with Paul Edits)



Some highlights of this version

(see email trial below for detailed rationale)

- Builds on #3's simplicity

- Version 3 had no volume requirement if not public

- clear line between 1 and 2 (based on what product was designed
for - not where it may end up)

- Uses phrasing common to other provisions

- Clarifies that user must be able to adjust






2.2-D Volume




All products with speech output must meet the following provisions regarding
volume as measured using a 2K Hz reference signal:


1) Products designed to be located in public places must be capable of a
volume level of at least 80 dB SPL RMS measured at a typical listener
position.

2) Products not designed to be located in public places must be capable of a
volume level of at least 65 dB SPL RMS measured at a typical listener
position.



3) All products must have less than 12 dB symmetrical clipping at all
volume levels including maximum volume level.

4) Volume output on audio jacks must be adjustable by user.







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

_____

From: Gregg Vanderheiden [mailto: = EMAIL ADDRESS REMOVED = ]
Sent: Monday, January 07, 2008 1:12 PM
To: 'Michaelis, Paul R. (Paul)'; 'Diane Golden'
Cc: 'Karen Peltz Strauss'; ' = EMAIL ADDRESS REMOVED = '
Subject: RE: 2.2-D Volume



Good edit Paul




Gregg


_____


From: Michaelis, Paul R. (Paul) [mailto: = EMAIL ADDRESS REMOVED = ]

My only suggestion is to add "by the user" to requirement #4. Thanks,

-- Paul


-----Original Message-----
From: Gregg Vanderheiden [mailto: = EMAIL ADDRESS REMOVED = ]
Sent: Mon 1/7/2008 11:34 AM
To: 'Gregg Vanderheiden'; 'Diane Golden'
Cc: 'Karen Peltz Strauss'; = EMAIL ADDRESS REMOVED = ; Michaelis, Paul R. (Paul)
Subject: RE: 2.2-D Volume

The suggestion below our result in the following (if it wasn't clear)



All products with speech output must meet the following provisions regarding
volume as measured using a 2K Hz reference signal:



1) Products designed to be located in public places must be capable of a
volume level of at least 80 dB SPL RMS measured at a typical listener
position.



2) Products not designed to be located in public places must be capable of a
volume level of at least 65 dB SPL RMS measured at a typical listener
position.



3) All products must have less than 12 dB symmetrical clipping at all
volume levels including maximum volume level.



4) Volume output on audio jacks must be adjustable.






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






_____


From: Gregg Vanderheiden [mailto: = EMAIL ADDRESS REMOVED = ]
Sent: Monday, January 07, 2008 10:53 AM
To: 'Diane Golden'
Cc: 'Karen Peltz Strauss'; ' = EMAIL ADDRESS REMOVED = '; 'Paul Michaelis
( = EMAIL ADDRESS REMOVED = )'
Subject: RE: 2.2-D Volume

Thanks



Looking better.





Hmmmm



Two things






1)




This looks like there is no requirement if it is not a public device.

** I think you need a volume for non-public to get it through.

(maybe 2) Products not designed to be located in public places must be
capable of a volume level of at least 65 dB SPL RMS measured at a typical
listener position.








2)


Also - someone complained that all products are intended to be used by the
public. So we have been using "intended (designed?) to be located in
public places"

** Does that work better for you?





Have to talk to Karen and Brenda about these but these are my quick
thoughts.






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


_____


From: Diane Golden [mailto: = EMAIL ADDRESS REMOVED = ]
Sent: Monday, January 07, 2008 10:29 AM
To: = EMAIL ADDRESS REMOVED =
Subject: 2.2-D Volume



Here is what Paul and I have drafted --



2.2-D - Volume



All products with speech output must meet the following provisions regarding
volume as measured using a 2K Hz reference signal:



1) Products to be used by the public must be capable of a volume level of at
least 80 dB SPL RMS measured at a typical listener position.



2) All products must have less than 12 dB symmetrical clipping at all volume
levels including maximum volume level.



3) Volume output on audio jacks must be adjustable.