[Linrad] Re: inrad from scratch

[brack <gmail.com; bodybuilders@xxxxxxxxxxxxxxxx>]

Ok, I figured how to switch off direct sound and linrad is working
now. Looks ok but in a few minutes of work it crashes with
"Segmentation Fault" I tried the old version, and it doesnt crash but
it is very slow, would like to play with the new one. tried 03.03 and
03.04 both with the same crash problem. Googled a bit for this problem
found a lot of posts about older versions having these crashes, dont
really know what is the reason, but it happens now and them when i
start actively click on different areas of the screen. Is there
anything I can do to get rid of this annoying problem?

Yury

On Mar 29, 4:29 pm, Leif Asbrink <l...@xxxxxxxxxx> wrote:
> brack <bodybuild...@xxxxxxxxx> wrote:
> > Ok,  read and followed site instructions for initial setup of Linrad,
> > and compiled 03.03 without problems under ubuntu. I have two sound
> > devices attached to pc - one is on board chip and the other is sb16. I
> > have conventional receiver plugged into sb16's line in, and headphones
> > are plugged into on-board's line out. I setup linrad's input device
> > sb16 and output on-board, did that because if I plug headphones and
> > radio in the same device, I hear signal from radio all the time and
> > dont have a slightest idea how to disable it.  
>
> You must use a mixer program to set volume controls and various
> switches on the soundcard. There is alsamixer, alsamixergui,
> GNOME ALSA mixer, gamix and others. What sb16 stands for
> is unclear to me - I am afraid that many different cards were
> sold with that label.
>
> Having two soundcards under alsa means that you should specify
> what order the devices should be numbered. Read z_ALSA.txt
>
> Under ALSA-oss it is not easy to know which device belongs
> to which card - and the order changes on re-boot if you did
> not specify what order you want.
>
> By installing the alsa development package you get access to
> native alsa that will tell you explicitly what hardware
> each driver is for.
>
> > Linrad shows for some
> > reason the message, when I choose input/output device, that the system
> > uses OSS or Alsa-OSS but I know that I didnt do any changes to the
> > system, and oss packages are not installed, so, I suppose I use alsa.
>
> You then use alsa-oss.
>
> > Anyway, the result of all my following the manual, is the silence in
> > headphones and no signal on linrad's screen. What do i do wrong? how
> > to set this thing up? any help appreciated.
>
> The easiest thing to do first might be to be to play a recorded file.
> Download e.g. unkn422.wav to e.g. /home/user/wavlib
> (zipped here:http://www.af9y.com/radio30.htm)
> and place a file "adwav" in your linrad directory with the following
> content:
> /home/user/wavlib/unkn422.wav /home/user/wavlib/u422
> The first file name has to be the full name of the file to play.
> The second file name specifies that Linrad should remember
> the parameters you select at this separate location and not make
> changes to the parameters that you use with your hardware.
>
> You might be interested to look herehttp://www.sm5bsz.com/linuxdsp/run/ssbafc.htm
>
> To play the file press '2' on the main menu. You should
> see something on screen.
>
> You may now select a signal by clicking the mouse on
> some point in the spectrum. That should produce sound
> output provided that none of the volume controls is zero.
>
> The volume in Linrad is the red bar in the baseband graph
> (green dB scale) The little square at the left should
> be white and moving. Not red ant at the top (overload)
> and not green at the bottom (no signal)
>
> If you do not hear anything it might be a good idea to
> check whether the default .wav player in Ubuntu can
> produce output.
>
> You may try the other soundcard.
> Then use 'U' to select another device and look for
> output on both loudspeaker connectors. You should find
> something somewhere. That should help you to understand
> your system and to get started with using a mixer program.
>
>   Regards
>
>     Leif / SM5BSZ

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