need help on audio recording

From	Long Wind <longwind2@yahoo.com>
Newsgroups	linux.debian.user
Subject	need help on audio recording
Date	2017-08-14 00:50 +0200
Message-ID	<ue9RL-4xb-7@gated-at.bofh.it> (permalink)
References	<ue9RL-4xb-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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it seem  alsa isn't easy for mei want to record audio that comes from line in of sound card
amixer -c 0 sset Line,0 50%,50% unmute cap
command above seems OK, I can hear sound from line in after running the command
arecord -t wav -d 10 foo.wav
and run aplay, I can't hear any sound
Thanks!

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need help on audio recording Long Wind <longwind2@yahoo.com> - 2017-08-14 00:50 +0200
  RE: need help on audio recording "John Ratliff" <jratliff@bluemarble.net> - 2017-08-14 02:40 +0200
    Re: need help on audio recording Long Wind <longwind2@yahoo.com> - 2017-08-14 04:20 +0200
    Re: need help on audio recording Long Wind <longwind2@yahoo.com> - 2017-08-14 04:40 +0200
      Re: need help on audio recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-14 07:30 +0200
        Re: need help on audio recording deloptes <deloptes@gmail.com> - 2017-08-14 09:30 +0200
          Re: need help on audio recording <tomas@tuxteam.de> - 2017-08-14 11:10 +0200
            Re: need help on audio recording Ric Moore <wayward4now@gmail.com> - 2017-08-14 11:20 +0200
            Re: need help on audio recording Long Wind <longwind2@yahoo.com> - 2017-08-14 15:50 +0200
            Re: need help on audio recording deloptes <deloptes@gmail.com> - 2017-08-14 16:20 +0200
              Re: need help on audio recording Gene Heskett <gheskett@shentel.net> - 2017-08-14 21:50 +0200
                Re: need help on audio recording <tomas@tuxteam.de> - 2017-08-14 22:00 +0200
                Re: need help on audio recording <tomas@tuxteam.de> - 2017-08-14 22:10 +0200
                Re: need help on audio recording Gene Heskett <gheskett@shentel.net> - 2017-08-14 22:30 +0200
                Re: need help on audio recording deloptes <deloptes@gmail.com> - 2017-08-14 22:10 +0200
                Re: need help on audio recording Brian <ad44@cityscape.co.uk> - 2017-08-14 22:50 +0200
                Re: need help on audio recording Gene Heskett <gheskett@shentel.net> - 2017-08-15 01:00 +0200
                Re: need help on audio recording deloptes <deloptes@gmail.com> - 2017-08-15 01:30 +0200
                Re: need help on audio recording rhkramer@gmail.com - 2017-08-15 16:10 +0200

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