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The jack and ALSA header files should be provided by packages libjack-dev and libasound2-dev respectively.


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A way to solve this problem is to disable pulseaudio . (note that pulseaudio is usually not needed to get sound, as almost all Linux software can use alsa if pulseaudio is not active. Exception is Skype which needs pulseaudio . The main problem is that you must install and use gnome-alsamixer to set volume instead standard volume applet. Another ...


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The most complete recording, editing, and audio mixer software is Ardour. This software is based on Jack rather than PulseAudio sound server. Ardour can be installed from the Software Center but it will likely better be integrated in the Ubuntu Studio flavour of Ubuntu. If it is only a single or few LADSPA plugins we can also integrate them to the ...


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I have the same problem on my pc: It appears that effectively alsa restores SPDIF "unmuted" state during boot, but then pulseaudio mutes it when user session starts. To verify that alsa restore is ok, just run sudo alsactl restore in a terminal and look if it unmute SPDIF. To verify that pulseaudio is the problem , just run pulseaudio -k to relaunch ...


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I figured it out. It looks like it's a bug with Ubuntu probably. I went to system settngs>sound>Input tab> select microphone built in audio, and then over on the right hand side where there is the input volume and the mute button. Checkbox the mute button, and then un-check it again and that causes the microphone to start working. I hope it works for anyone ...



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