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Old 03-16-2010, 11:31 PM
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Default Online but no audio passing + Ubuntu

Hi all, I 'm having a bit of a problem.
My feed is showing up online,
But there doesn't seem to be any audio coming out.
My operating system in Ubuntu Linux and I'm using Darkice.
I have the scanner connected to the sound-card,
Set my levels using Audacity.
It sounds ok locally when I record with audacity and play back, but when
I try to listen from another computer I hear nothing.
I'm using port 8000 and have that forwarded to the streaming pc.

Any other hints or tricks I might try ?
Thanks for your time

Bob Prybyzerski W2YMM


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Old 03-17-2010, 2:59 PM
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I haven't used Audacity before, is it possible that Audacity reverts your soundcard settings to "default" when it closes? And the default for inputs is usually "off" or at least turned down. (Edit: I just realized you may simply mean you used Audacity to monitor levels while setting elsewhere!)

What happens if you use the Gnome soundcard applet to adjust levels? (You may have to go into a menu to enable the recording sliders / switches. It's been a while since I played with that.) I'm running mine on a headless system, so no X. I use the alsamixer to set levels and save.

I assume if Darkice is staying running you actually have a /dev/dsp link. (IIRC Darkice still uses the OSS devices.) If not, you may just need to tell the system to load the OSS compatibility modules for alsa. Best bet would be to search Ubuntu Forums for that... Looking at my system, if you run 'lsmod' you should see snd_mixer_oss and snd_pcm_oss listed. I would expect Audacity doesn't use the old OSS method of accessing the soundcard, which could be why it works but not Darkice.

Another possibility, many people have had problems with Pulse Audio in the last couple of Ubuntu versions. I'm not sure how that interacts with something trying to access the sound card directly, but you could try removing it. Again, there are a number of threads on it on the Ubuntu Forums.
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Old 03-17-2010, 4:54 PM
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Thanks for the reply.
I first guess is that Darkice doesn't know where to find my soundcard.
I will check some of the Ubuntu Boards as well.

Here's a snip of what was shown with 'lsmod'
ip_tables 11692 1 iptable_filter
x_tables 16544 1 ip_tables
snd_intel8x0 30168 2
snd_ac97_codec 101216 1 snd_intel8x0
ac97_bus 1532 1 snd_ac97_codec
snd_pcm_oss 37920 1
snd_mixer_oss 16028 1 snd_pcm_oss
snd_pcm 75296 4 snd_usb_audio,snd_intel8x0,snd_ac97_codec,snd_pcm_ oss
snd_seq_dummy 2656 0
snd_seq_oss 28576 0
snd_seq_midi 6464 0

Bob P W2YMM
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Old 03-17-2010, 5:37 PM
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goto konsole and run

alsamixer

adjust the levels there

The levels presented by things like KMixer and other X based utils and programs tend to be very inaccurate and don't effect what some programs like darkice use.
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Old 03-17-2010, 5:54 PM
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Default Online but no audio passing + Ubuntu (Working)

Not sure what happened.
I switched soundcards
stopped and restarted darkice and now It's up.
My Luck.
Thanks
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