<p>That depends on the camera. I see it done all the time on professional equipment. Check your manual, it should be covered. If not there are several battery powered headphone amps from china on the market for cheap. I think I picked up one for $12 from Radio Shack last year.</p>
<p>Matt<br>
</p>
<div class="gmail_quote">On Dec 18, 2012 12:42 PM, "Braddock Gaskill" <<a href="mailto:braddock@braddock.com">braddock@braddock.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
On Tue, 18 Dec 2012 12:05:17 -0800, Matthew Campbell <<a href="mailto:dvdmatt@gmail.com">dvdmatt@gmail.com</a>><br>
<br>
wrote:<br>
<br>
> Line level can drive efficient headphones, give that a quick try before<br>
<br>
> complicating the project. ;)<br>
<br>
<br>
<br>
Gee, I don't think I'd have the guts to do that to my new camera. Surely<br>
<br>
it is designed for a high impedance input?<br>
<br>
<br>
<br>
-braddock<br>
<br>
<br>
<br>
<br>
<br>
> On Dec 18, 2012 11:58 AM, "Braddock Gaskill" <<a href="mailto:braddock@braddock.com">braddock@braddock.com</a>><br>
<br>
> wrote:<br>
<br>
><br>
<br>
>><br>
<br>
>> On Mon, 17 Dec 2012 10:51:30 -0800, Matthew Campbell<br>
<br>
<<a href="mailto:dvdmatt@gmail.com">dvdmatt@gmail.com</a>><br>
<br>
>><br>
<br>
>> wrote:<br>
<br>
>><br>
<br>
>> > Many cameras have an audio monitor jack and audio VU meters. Check<br>
<br>
>> > your<br>
<br>
>><br>
<br>
>> > manual.<br>
<br>
>><br>
<br>
>><br>
<br>
>><br>
<br>
>> Ah, you're right Matt. It has a breakout A/V cable from some funky<br>
<br>
>><br>
<br>
>> pseudo-USB connector.<br>
<br>
>><br>
<br>
>><br>
<br>
>><br>
<br>
>> Apparently no VU meter unfortunately.<br>
<br>
>><br>
<br>
>><br>
<br>
>><br>
<br>
>> Now I just need to amp that from line level to a pair of headphones or<br>
<br>
a<br>
<br>
>><br>
<br>
>> meter. Is there anything portable off-the-shelf and _cheap_ that will<br>
<br>
do<br>
<br>
>><br>
<br>
>> that, or should I break out the breadboard and the LM386?<br>
<br>
>><br>
<br>
>><br>
<br>
>><br>
<br>
>> -braddock<br>
<br>
>><br>
<br>
>><br>
<br>
>><br>
<br>
>> ><br>
<br>
>><br>
<br>
>> > Matt<br>
<br>
>><br>
<br>
>> > On Dec 17, 2012 9:30 AM, "Braddock Gaskill" <<a href="mailto:braddock@braddock.com">braddock@braddock.com</a>><br>
<br>
>><br>
<br>
>> wrote:<br>
<br>
>><br>
<br>
>> ><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> On Sat, 15 Dec 2012 08:42:35 -0800 (PST), Lan Dang<br>
<br>
<<a href="mailto:l.dang@ymail.com">l.dang@ymail.com</a>><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> wrote:<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> > My video is in AVCHD format and chewed up about 7 GB on my SD<br>
<br>
card.<br>
<br>
>><br>
<br>
>> >> > Let<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> > me know if you can deal with that or even with MTS files. I<br>
<br>
won't<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> have<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> > any time in the next week or so to fuss about video conversions<br>
<br>
and<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> > transcoding.<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> Maybe I can copy it at the next HAK meeting.<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> > PS If we want to be serious about recording and posting SGVLUG<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> > presentations to the web, we may need to be more organized and<br>
<br>
>><br>
<br>
>> consult<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> with<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> > the experts on the mailing list on an appropriate setup to save us<br>
<br>
>><br>
<br>
>> this<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> > pain in the future.<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> I'm pretty certain that the audio failure comes from operator error<br>
<br>
-<br>
<br>
>><br>
<br>
>> the<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> mic wasn't turned on. I had tested it just before the presentation<br>
<br>
by<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> recording and playing back and it was working at that time. Either<br>
<br>
I<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> turned it off before handing it to David, or it was accidentally<br>
<br>
>> >> turned<br>
<br>
>><br>
<br>
>> >> off<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> when David put it on.<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> I need to devise a way to monitor what the mic is outputting through<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> headphones so that I can confirm it is working. Any ideas short of<br>
<br>
>><br>
<br>
>> >> building<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> a small splitter/amp circuit?<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> I'm still considering recording meetings as just a fun experiment<br>
<br>
with<br>
<br>
>><br>
<br>
>> my<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> new camera.<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >> -braddock<br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>> >><br>
<br>
>><br>
<br>
>><br>
<br>
</blockquote></div>