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