how to record sound being played using arecord

From	lou <loushanguan2015@sina.com>
Newsgroups	linux.debian.user
Subject	how to record sound being played using arecord
Date	2021-10-02 10:00 +0200
Message-ID	<D3I66-7Hf-9@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Could you give me commands that record sound being played?

i don't know how to use alsaloop

Can arecord use mp3 format?

Thanks!

   ~$ amixer
Simple mixer control 'Master',0
   Capabilities: pvolume pswitch pswitch-joined
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 65536
   Mono:
   Front Left: Playback 31609 [48%] [on]
   Front Right: Playback 31609 [48%] [on]
Simple mixer control 'Capture',0
   Capabilities: cvolume cswitch cswitch-joined
   Capture channels: Front Left - Front Right
   Limits: Capture 0 - 65536
   Front Left: Capture 3479 [5%] [off]
   Front Right: Capture 3479 [5%] [off]

~$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

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how to record sound being played using arecord lou <loushanguan2015@sina.com> - 2021-10-02 10:00 +0200
  Re: how to record sound being played using arecord Dan Ritter <dsr@randomstring.org> - 2021-10-02 13:50 +0200
    Re: how to record sound being played using arecord lou <loushanguan2015@sina.com> - 2021-10-02 14:20 +0200
      Re: how to record sound being played using arecord Dan Ritter <dsr@randomstring.org> - 2021-10-02 15:40 +0200
        Re: how to record sound being played using arecord lou <loushanguan2015@sina.com> - 2021-10-03 04:10 +0200
          Re: how to record sound being played using arecord Michael Lange <klappnase@freenet.de> - 2021-10-03 15:30 +0200
            Re: how to record sound being played using arecord lou <loushanguan2015@sina.com> - 2021-10-03 22:30 +0200
  Re: how to record sound being played using arecord Michael Lange <klappnase@freenet.de> - 2021-10-02 20:20 +0200

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