<br><br><div class="gmail_quote">On Mon, Jan 30, 2012 at 2:03 PM, Fons Adriaensen <span dir="ltr"><<a href="mailto:fons@linuxaudio.org" target="_blank">fons@linuxaudio.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>On Mon, Jan 30, 2012 at 08:41:28AM +0530, Rustom Mody wrote:<br>
<br>
> Immediate context:<br>
> Im trying to capture from firefox using the .asoundrc/jack settings shown<br>
> <a href="http://jackaudio.org/routing_alsa" target="_blank">http://jackaudio.org/routing_alsa</a><br>
> [Track is <a href="http://www.raaga.com/play/?id=183659" target="_blank">http://www.raaga.com/play/?id=183659</a><br>
> I would just buy it if it were for sale; its not. You may have to click<br>
> past an ad]<br>
<br>
</div>I just recorded the first minute using the alsa-jack plugin, this<br>
works perfectly and their is no offset in the signal. So it's not<br>
the source or firefox or the plugin.<br>
<div><br>
> However Ive noticed earlier that when I use my (cheap headset) mike to<br>
> record directly into audacity, this similar DC offset occurs. Since I am no<br>
> audio pro I did not know what to google for before seeing the tabs in the<br>
> normalize dialog of audacity.<br>
<br>
</div>Could it be that while recording from firefox you had the soundcard<br>
(auto)connected to the same track as well ? That would add the offset<br>
if the cause is your soundcard (which I suspect), even if the headset<br>
is not plugged in.<br></blockquote><div><br>So you are suggesting I "unconnect" the soundcard (and 'silently' record?)<br>Ok how to unconnect the card?<br> </div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div><br>
> So if you ask me exactly how much DC offset I dont know how to find out in<br>
> figures. The audacity track shows it 1/4th to 1/3rd way up. Center is 0.0<br>
> top is 1.0 inbetween is 0.5.<br>
> This is little more than half way between 0 and 0.5.<br>
<br>
</div>Which is way too much, and indicates broken hardware.<br>
<br>
So please check your connections and then we'll see again.<br></blockquote><div><br>Not sure what you are asking here...<br>What I can try is a friends machine...<br>Let me try that (Some challenges to that I am the most 'pro' out here in the sense that I at least know how to spell j-a-c-k :-) -- I guess I'll just commandeer the machine.<br>
<br><br><br></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
Ciao,<br>
<div><div></div><div><br>
--<br>
FA<br>
<br>
Vor uns liegt ein weites Tal, die Sonne scheint - ein Glitzerstrahl.<br>
<br>
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</div></div></blockquote></div><br>