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<p class="MsoNormal">Discussion today with Thanos and Efi on usage:<o:p></o:p></p>
<p class="MsoNormal"><br>
a. Author might define anything, e.g. mediaDeviceID="Bose Speakers" as input value,<br>
b. Browser is free to ignore initial settings like this,<br>
c. Browser or operating system handles selections, according to end-user direction,<br>
d. Browser reports actual device value selected as an output,<br>
e. A local Script (html or X3D) might subsequently override the value.<br>
<br>
We are generally silent about these input/output device ID possibilities, letting the Web Audio API define functionality.<br>
<br>
Editorial correction:<br>
change<br>
"The mediaDeviceID field is a unique identifier for the represented device."<br>
to<br>
"The mediaDeviceID field is a unique identifier for the active device."<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">v/r Don<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Brutzman, Donald (Don) (CIV) <br>
<b>Sent:</b> Sunday, August 1, 2021 5:41 PM<br>
<b>To:</b> 'athanasios.malamos@gmail.com' <athanasios.malamos@gmail.com>; Eftychia Lakka <efilakka@gmail.com>; maria.mary.papadaki@gmail.com; Richard F. Puk (puk@igraphics.com) <puk@igraphics.com><br>
<b>Cc:</b> x3d-public@web3d.org; Brutzman, Donald (Don) (CIV) <brutzman@nps.edu><br>
<b>Subject:</b> mediaDeviceID accessType ought to be inputOutput<o:p></o:p></p>
</div>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A common field signature in Sound component appears to be incorrect:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> SFString [out] mediaDeviceID<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This field is not device output stream but rather identification, which an author may need to set or get. Thus accessType inputOutput [in out] is more appropriate.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Examples include<o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l2 level1 lfo3">16.3.2 X3DSoundDestinationNode<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l2 level1 lfo3"><a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/sound.html#X3DSoundDestinationNode">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/sound.html#X3DSoundDestinationNode</a>
<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We also need to ensure that the prose definition for mediaDeviceID appears in abstract types. From 16.4.3 AudioDestination:<o:p></o:p></p>
<p class="MsoNormal">“The <i>mediaDeviceID</i> field corresponds to the ID parameter functionality defined in W3C Web Audio API
<a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/references.html#W3C-WebAudio">
[W3C-WebAudio]</a>”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Once decided, this is easily fixed and then changes can be applied. Please advise if you agree, thanks for considering the problem.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Tracking the issue as Mantis 1369,<o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l2 level1 lfo3"><a href="https://www.web3d.org/member-only/mantis/view.php?id=1369">https://www.web3d.org/member-only/mantis/view.php?id=1369</a>
<o:p></o:p></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">all the best, Don<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">-- <o:p>
</o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Don Brutzman Naval Postgraduate School, Code USW/Br
<a href="mailto:brutzman@nps.edu">brutzman@nps.edu</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">X3D graphics, virtual worlds, navy robotics
<a href="http://faculty.nps.edu/brutzman">http://faculty.nps.edu/brutzman</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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