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<div class="moz-cite-prefix">I think you are running into the USB
Host versus slave issue. For a host, it can provide +5VDC, and a
slave expects that voltage. A OTG (on-the-go) device detects and
sources or sinks as necessary. We have a few i-thingy's about
the house, and I can not think of a peripheral where the i-thingy
acts as host. (to be fair, I don't have one, so speak from
outside the circle). There is a handshake routine where those
things are decided assuming the drivers are present.<br>
I would suspect the problem that you are having is that you can
not power the mic as the mic is in slave mode and the i-thingy
does not act as host, and/or there is no online driver for the USB
interface of the mic for the i-family. <br>
Hacking it to provide an analog interface may be possible, but
since the output is digital USB your talking hacking at the
hardware level inside the mic. <br>
In addition, the line in/out would be non-powered. <br>
<br>
I would suspect that your best option would be to look at a analog
solution and provide voltage for the mic from a battery, inputting
through your speaker/mic interface, but others may have better
ideas.<br>
<br>
As an aside, my colleagues and I were talking about the
functionality of smartphone devices today and the capability of
these devices being whatever you need with the barest of
interfaces, just dependent on imagination. You have an entire
fairly powerful computer in your pocket....we live in interesting
times!<br>
<br>
Ken<br>
<br>
On 5/1/2013 11:21 AM, Jamie wrote:<br>
</div>
<blockquote
cite="mid:CAG6JN0nax1tGjJ8CPx4V2X8OZiGFs+N5OAQcJfewpp_2fPOmNg@mail.gmail.com"
type="cite">
<div dir="ltr">Currently using a powered USB mic (<a
moz-do-not-send="true"
href="http://www.audio-technica.com/cms/wired_mics/c75c5918ed57a8d0/index.html">Audio
Technica AT2010</a>) with laptop to record <a
moz-do-not-send="true" href="http://steppinofftheedge.com">podcast</a>.
<br>
<br>
Goal is to be able to connect it to iPhone to reduce gear size
for interview setup, but the powered part of USB is proving to
be a challenge. Tried using a USB Hub but no luck. I think
instead of having audio go via the 30-pin connector it has to
send via the headphone jack. Not sure if hitting an unpossible
digital/analog wall in this scenario. I have materials to hack
an extra iPhone USB charge wire, USB power wire and headphone
jack together but hoping someone can confirm what I'm trying to
do is possible before I start down that path.<br>
<br>
Related Links:<br>
<ul>
<li>Non-Powered Mic Hack:<br>
<a moz-do-not-send="true"
href="http://benttronics.blogspot.ca/2009/05/audio-breakout-cable-for-ipodiphone.html">http://benttronics.blogspot.ca/2009/05/audio-breakout-cable-for-ipodiphone.html</a><br>
<br>
</li>
<li>iPhone 30 pin out guide<br>
<a moz-do-not-send="true"
href="http://pinouts.ru/PortableDevices/ipod_pinout.shtml">http://pinouts.ru/PortableDevices/ipod_pinout.shtml</a><br>
<br>
</li>
<li>More context from a reddit thread on the idea a year ago:<br>
<a moz-do-not-send="true"
href="http://www.reddit.com/r/AskReddit/comments/fmavw/solve_a_portable_microphone_challenge_win_for_you/">http://www.reddit.com/r/AskReddit/comments/fmavw/solve_a_portable_microphone_challenge_win_for_you/</a><br>
<br>
</li>
</ul>
<p>I might be able to make it out to the modlab tonight and
wondering if anyone is going to be there with interest / time
to help point the way on this type of project?</p>
<p>Thx,<br>
Jamie<br>
</p>
</div>
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