23 Aug
2007
23 Aug
'07
4:50 a.m.
Hector Centeno wrote:
Thanks Daniel,
I checked out again from SVN and rebuilt. Now I have the test-volume program
but this is what I get when I try to run it:
$ ./test-volume 0 5 -32768
/home/hector/Desktop/libfreebob/tests/.libs/lt-test-volume: symbol lookup
error: /home/hector/Desktop/libfreebob/tests/.libs/lt-test-volume: undefined
symbol:
_ZN16FunctionBlockCmdC1EP15Ieee1394ServiceNS_18EFunctionBlockTypeEhNS_17EControlAttributeE
ldd loads the wrong library for the test-volume program. It loads the
current installed libfreebob library (e.g. installed in /usr/lib or
/usr/local/lib). Try to set the LD_LIBRARY_PATH environment variable.
e.g for bash:
$ export LD_LIBRARY_PATH=/home/hector/Desktop/libfreebob/src/.libs
$ ./test-volume 0 5 -1000
Then ldd should find the correct library. If that works you could
overwrite the installed libfreebob version with your own compiled
version. But if you are not completely sure what you are doing I do not
recommend this step. It could break you installation.
Also I noticed that on that old thread where this test
utility is discussed
( http://linuxaudio.org/pipermail/linux-audio-user/2006-November/039911.html)
there is mention of not being able to set the outputs with it. Is this
still true?
Yes this mails is still true. Though to be honest I have never tried it
really. I've just implemented the program and looked at the responses
from the devices. I think I should really test tonight.
What I need is to lower the volume of the outputs.
I now that the FA-101 has a high output level at default. Even the
output level for the headphones are really high.
Also in that thread there is mention of a
"mixer" for doing that.
IRC, the FA-101 is the only device in the BeBoB family which has a very
simple mixer implemented. I can't really tell what you can do with it.
There is a schematics drawn on the device top. Maybe that gives you a
clue what the built in mixer can do.
Would that be a software mixer part of the FA-101
drivers present in Windows? I can't see
any reference to a software mixer in the FA-101 manual.
Sorry, I don't know.
My problem is that when I plug my ADAM-A7 monitors
using balanced cables the
output is too hot and even causes some distortion, when using unbalanced
cables the situation is better but still it feels too hot. The odd thing is
that through the headphones the FA-101 level sounds normal and there is no
distortion. I tested the same monitors with an M-Audio Audiophile and the
level sounds normal. The A7s have volume control labeled from -60db to 6db
with 0db at twelve o'clock. Using the FA-101 I can't go pass -30db (using
balanced or unbalanced cables). With the audiophile I can go up to 0db and
sounds fine.
As I said previously that FA-101 has really high output levels.
Hopefully you can set the output level with the test program. Of course
the test program should be improved :)
I'll appreciate any help on this since I'm in
the middle of several
projects.
No problem.
cheers,
daniel